diff --git a/substrate/Cargo.lock b/substrate/Cargo.lock
index f7decfec32..f3c9672e37 100644
--- a/substrate/Cargo.lock
+++ b/substrate/Cargo.lock
@@ -574,7 +574,7 @@ dependencies = [
 
 [[package]]
 name = "chain-spec-builder"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "ansi_term 0.12.1",
  "node-cli",
@@ -1393,14 +1393,14 @@ checksum = "2fad85553e09a6f881f739c29f0b00b0f01357c743266d478b68951ce23285f3"
 
 [[package]]
 name = "fork-tree"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
 ]
 
 [[package]]
 name = "frame-benchmarking"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -1416,7 +1416,7 @@ dependencies = [
 
 [[package]]
 name = "frame-benchmarking-cli"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "parity-scale-codec",
@@ -1433,7 +1433,7 @@ dependencies = [
 
 [[package]]
 name = "frame-executive"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -1453,7 +1453,7 @@ dependencies = [
 
 [[package]]
 name = "frame-metadata"
-version = "11.0.0-rc1"
+version = "11.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "serde",
@@ -1463,7 +1463,7 @@ dependencies = [
 
 [[package]]
 name = "frame-support"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "bitmask",
  "frame-metadata",
@@ -1489,7 +1489,7 @@ dependencies = [
 
 [[package]]
 name = "frame-support-procedural"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support-procedural-tools",
  "proc-macro2",
@@ -1499,7 +1499,7 @@ dependencies = [
 
 [[package]]
 name = "frame-support-procedural-tools"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support-procedural-tools-derive",
  "proc-macro-crate",
@@ -1510,7 +1510,7 @@ dependencies = [
 
 [[package]]
 name = "frame-support-procedural-tools-derive"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "proc-macro2",
  "quote 1.0.3",
@@ -1519,7 +1519,7 @@ dependencies = [
 
 [[package]]
 name = "frame-support-test"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "parity-scale-codec",
@@ -1536,7 +1536,7 @@ dependencies = [
 
 [[package]]
 name = "frame-system"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "criterion 0.2.11",
  "frame-support",
@@ -1554,7 +1554,7 @@ dependencies = [
 
 [[package]]
 name = "frame-system-benchmarking"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -1569,7 +1569,7 @@ dependencies = [
 
 [[package]]
 name = "frame-system-rpc-runtime-api"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -3358,7 +3358,7 @@ dependencies = [
 
 [[package]]
 name = "node-bench"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "derive_more",
  "fs_extra",
@@ -3388,7 +3388,7 @@ dependencies = [
 
 [[package]]
 name = "node-browser-testing"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "futures 0.3.4",
  "futures-timer 3.0.2",
@@ -3405,7 +3405,7 @@ dependencies = [
 
 [[package]]
 name = "node-cli"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "assert_cmd",
  "frame-benchmarking-cli",
@@ -3479,7 +3479,7 @@ dependencies = [
 
 [[package]]
 name = "node-executor"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "criterion 0.3.1",
  "frame-benchmarking",
@@ -3513,7 +3513,7 @@ dependencies = [
 
 [[package]]
 name = "node-inspect"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "derive_more",
  "log",
@@ -3529,7 +3529,7 @@ dependencies = [
 
 [[package]]
 name = "node-primitives"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-system",
  "parity-scale-codec",
@@ -3542,7 +3542,7 @@ dependencies = [
 
 [[package]]
 name = "node-rpc"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "jsonrpc-core",
  "node-primitives",
@@ -3568,7 +3568,7 @@ dependencies = [
 
 [[package]]
 name = "node-rpc-client"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "env_logger 0.7.1",
  "futures 0.1.29",
@@ -3581,7 +3581,7 @@ dependencies = [
 
 [[package]]
 name = "node-runtime"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-executive",
@@ -3647,7 +3647,7 @@ dependencies = [
 
 [[package]]
 name = "node-template"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "futures 0.3.4",
  "log",
@@ -3676,7 +3676,7 @@ dependencies = [
 
 [[package]]
 name = "node-template-runtime"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-executive",
  "frame-support",
@@ -3708,7 +3708,7 @@ dependencies = [
 
 [[package]]
 name = "node-testing"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "criterion 0.3.1",
  "frame-support",
@@ -3911,7 +3911,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-assets"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3925,7 +3925,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-aura"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3947,7 +3947,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-authority-discovery"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3965,7 +3965,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-authorship"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3981,7 +3981,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-babe"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4003,7 +4003,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-balances"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4019,7 +4019,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-benchmark"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4033,7 +4033,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-collective"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4050,7 +4050,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-contracts"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "assert_matches",
  "frame-support",
@@ -4076,7 +4076,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-contracts-primitives"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "sp-runtime",
@@ -4085,7 +4085,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-contracts-rpc"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "jsonrpc-core",
  "jsonrpc-core-client",
@@ -4104,7 +4104,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-contracts-rpc-runtime-api"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "pallet-contracts-primitives",
  "parity-scale-codec",
@@ -4115,7 +4115,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-democracy"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4135,7 +4135,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-elections"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4151,7 +4151,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-elections-phragmen"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4170,7 +4170,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-evm"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "evm",
  "frame-support",
@@ -4190,7 +4190,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-example"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4206,7 +4206,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-example-offchain-worker"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4221,7 +4221,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-finality-tracker"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4238,7 +4238,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-generic-asset"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4252,7 +4252,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-grandpa"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "finality-grandpa",
  "frame-support",
@@ -4279,7 +4279,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-identity"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "enumflags2",
  "frame-benchmarking",
@@ -4296,7 +4296,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-im-online"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4315,7 +4315,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-indices"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4331,7 +4331,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-membership"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4345,7 +4345,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-nicks"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4360,7 +4360,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-offences"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4376,7 +4376,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-offences-benchmarking"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4401,7 +4401,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-randomness-collective-flip"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4415,7 +4415,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-recovery"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "enumflags2",
  "frame-support",
@@ -4431,7 +4431,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-scheduler"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4446,7 +4446,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-scored-pool"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4461,7 +4461,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-session"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4482,7 +4482,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-session-benchmarking"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4502,7 +4502,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-society"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4518,7 +4518,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-staking"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "env_logger 0.7.1",
  "frame-benchmarking",
@@ -4569,7 +4569,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-staking-reward-curve"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
@@ -4580,7 +4580,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-sudo"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4594,7 +4594,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-template"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4606,7 +4606,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-timestamp"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4624,7 +4624,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-transaction-payment"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4641,7 +4641,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-transaction-payment-rpc"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "jsonrpc-core",
  "jsonrpc-core-client",
@@ -4658,7 +4658,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-transaction-payment-rpc-runtime-api"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "parity-scale-codec",
@@ -4671,7 +4671,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-treasury"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4687,7 +4687,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-utility"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4703,7 +4703,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-vesting"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "enumflags2",
  "frame-benchmarking",
@@ -5827,7 +5827,7 @@ dependencies = [
 
 [[package]]
 name = "sc-authority-discovery"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "bytes 0.5.4",
  "derive_more",
@@ -5857,7 +5857,7 @@ dependencies = [
 
 [[package]]
 name = "sc-basic-authorship"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "futures 0.3.4",
  "futures-timer 3.0.2",
@@ -5883,7 +5883,7 @@ dependencies = [
 
 [[package]]
 name = "sc-block-builder"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "sc-client-api",
@@ -5900,7 +5900,7 @@ dependencies = [
 
 [[package]]
 name = "sc-chain-spec"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "impl-trait-for-tuples",
  "sc-chain-spec-derive",
@@ -5915,7 +5915,7 @@ dependencies = [
 
 [[package]]
 name = "sc-chain-spec-derive"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
@@ -5925,7 +5925,7 @@ dependencies = [
 
 [[package]]
 name = "sc-cli"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "ansi_term 0.12.1",
  "atty",
@@ -5966,7 +5966,7 @@ dependencies = [
 
 [[package]]
 name = "sc-client-api"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "derive_more",
  "fnv",
@@ -6004,7 +6004,7 @@ dependencies = [
 
 [[package]]
 name = "sc-client-db"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "blake2-rfc",
  "env_logger 0.7.1",
@@ -6037,7 +6037,7 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "sc-client-api",
  "sp-blockchain",
@@ -6047,7 +6047,7 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-aura"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "derive_more",
  "env_logger 0.7.1",
@@ -6085,7 +6085,7 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-babe"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "derive_more",
  "env_logger 0.7.1",
@@ -6135,7 +6135,7 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-babe-rpc"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "derive_more",
  "futures 0.3.4",
@@ -6163,7 +6163,7 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-epochs"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "fork-tree",
  "parity-scale-codec",
@@ -6175,7 +6175,7 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-manual-seal"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "assert_matches",
  "derive_more",
@@ -6205,7 +6205,7 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-pow"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "derive_more",
  "futures 0.3.4",
@@ -6226,7 +6226,7 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-slots"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "futures 0.3.4",
  "futures-timer 3.0.2",
@@ -6248,7 +6248,7 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-uncles"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "log",
  "sc-client-api",
@@ -6261,7 +6261,7 @@ dependencies = [
 
 [[package]]
 name = "sc-executor"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "assert_matches",
  "derive_more",
@@ -6296,7 +6296,7 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-common"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "derive_more",
  "log",
@@ -6312,7 +6312,7 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-wasmi"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "log",
  "parity-scale-codec",
@@ -6326,7 +6326,7 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-wasmtime"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "assert_matches",
  "cranelift-codegen",
@@ -6347,7 +6347,7 @@ dependencies = [
 
 [[package]]
 name = "sc-finality-grandpa"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "assert_matches",
  "derive_more",
@@ -6391,7 +6391,7 @@ dependencies = [
 
 [[package]]
 name = "sc-finality-grandpa-rpc"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "derive_more",
  "finality-grandpa",
@@ -6408,7 +6408,7 @@ dependencies = [
 
 [[package]]
 name = "sc-informant"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "ansi_term 0.12.1",
  "futures 0.3.4",
@@ -6424,7 +6424,7 @@ dependencies = [
 
 [[package]]
 name = "sc-keystore"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "derive_more",
  "hex",
@@ -6439,7 +6439,7 @@ dependencies = [
 
 [[package]]
 name = "sc-network"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "assert_matches",
  "async-std",
@@ -6499,7 +6499,7 @@ dependencies = [
 
 [[package]]
 name = "sc-network-gossip"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "async-std",
  "futures 0.3.4",
@@ -6517,7 +6517,7 @@ dependencies = [
 
 [[package]]
 name = "sc-network-test"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "env_logger 0.7.1",
  "futures 0.3.4",
@@ -6543,7 +6543,7 @@ dependencies = [
 
 [[package]]
 name = "sc-offchain"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "bytes 0.5.4",
  "env_logger 0.7.1",
@@ -6576,7 +6576,7 @@ dependencies = [
 
 [[package]]
 name = "sc-peerset"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "futures 0.3.4",
  "libp2p",
@@ -6589,7 +6589,7 @@ dependencies = [
 
 [[package]]
 name = "sc-proposer-metrics"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "log",
  "substrate-prometheus-endpoint",
@@ -6597,7 +6597,7 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "assert_matches",
  "futures 0.1.29",
@@ -6636,7 +6636,7 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc-api"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "derive_more",
  "futures 0.3.4",
@@ -6659,7 +6659,7 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc-server"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "jsonrpc-core",
  "jsonrpc-http-server",
@@ -6673,7 +6673,7 @@ dependencies = [
 
 [[package]]
 name = "sc-runtime-test"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "sp-allocator",
  "sp-core",
@@ -6686,7 +6686,7 @@ dependencies = [
 
 [[package]]
 name = "sc-service"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "derive_more",
  "exit-future",
@@ -6747,7 +6747,7 @@ dependencies = [
 
 [[package]]
 name = "sc-service-test"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "env_logger 0.7.1",
  "fdlimit",
@@ -6782,7 +6782,7 @@ dependencies = [
 
 [[package]]
 name = "sc-state-db"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "env_logger 0.7.1",
  "log",
@@ -6796,7 +6796,7 @@ dependencies = [
 
 [[package]]
 name = "sc-telemetry"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "bytes 0.5.4",
  "futures 0.3.4",
@@ -6817,7 +6817,7 @@ dependencies = [
 
 [[package]]
 name = "sc-tracing"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "erased-serde",
  "log",
@@ -6832,7 +6832,7 @@ dependencies = [
 
 [[package]]
 name = "sc-transaction-graph"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "assert_matches",
  "criterion 0.3.1",
@@ -6855,7 +6855,7 @@ dependencies = [
 
 [[package]]
 name = "sc-transaction-pool"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "assert_matches",
  "derive_more",
@@ -7226,7 +7226,7 @@ dependencies = [
 
 [[package]]
 name = "sp-allocator"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "derive_more",
  "log",
@@ -7237,7 +7237,7 @@ dependencies = [
 
 [[package]]
 name = "sp-api"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "hash-db",
  "parity-scale-codec",
@@ -7252,7 +7252,7 @@ dependencies = [
 
 [[package]]
 name = "sp-api-proc-macro"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "blake2-rfc",
  "proc-macro-crate",
@@ -7263,7 +7263,7 @@ dependencies = [
 
 [[package]]
 name = "sp-api-test"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "criterion 0.3.1",
  "parity-scale-codec",
@@ -7282,7 +7282,7 @@ dependencies = [
 
 [[package]]
 name = "sp-application-crypto"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "serde",
@@ -7293,7 +7293,7 @@ dependencies = [
 
 [[package]]
 name = "sp-application-crypto-test"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "sp-api",
  "sp-application-crypto",
@@ -7304,7 +7304,7 @@ dependencies = [
 
 [[package]]
 name = "sp-arithmetic"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "criterion 0.3.1",
  "integer-sqrt",
@@ -7320,7 +7320,7 @@ dependencies = [
 
 [[package]]
 name = "sp-arithmetic-fuzzer"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "honggfuzz",
  "num-bigint",
@@ -7331,7 +7331,7 @@ dependencies = [
 
 [[package]]
 name = "sp-authority-discovery"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -7342,7 +7342,7 @@ dependencies = [
 
 [[package]]
 name = "sp-authorship"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "sp-inherents",
@@ -7352,7 +7352,7 @@ dependencies = [
 
 [[package]]
 name = "sp-block-builder"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -7363,7 +7363,7 @@ dependencies = [
 
 [[package]]
 name = "sp-blockchain"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "derive_more",
  "log",
@@ -7378,7 +7378,7 @@ dependencies = [
 
 [[package]]
 name = "sp-chain-spec"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "serde",
  "serde_json",
@@ -7386,7 +7386,7 @@ dependencies = [
 
 [[package]]
 name = "sp-consensus"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "derive_more",
  "futures 0.3.4",
@@ -7409,7 +7409,7 @@ dependencies = [
 
 [[package]]
 name = "sp-consensus-aura"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -7422,7 +7422,7 @@ dependencies = [
 
 [[package]]
 name = "sp-consensus-babe"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "merlin",
  "parity-scale-codec",
@@ -7438,7 +7438,7 @@ dependencies = [
 
 [[package]]
 name = "sp-consensus-pow"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -7449,7 +7449,7 @@ dependencies = [
 
 [[package]]
 name = "sp-consensus-vrf"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "schnorrkel",
@@ -7460,7 +7460,7 @@ dependencies = [
 
 [[package]]
 name = "sp-core"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "base58",
  "blake2-rfc",
@@ -7506,7 +7506,7 @@ dependencies = [
 
 [[package]]
 name = "sp-database"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "kvdb",
  "parking_lot 0.10.2",
@@ -7514,7 +7514,7 @@ dependencies = [
 
 [[package]]
 name = "sp-debug-derive"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "proc-macro2",
  "quote 1.0.3",
@@ -7523,7 +7523,7 @@ dependencies = [
 
 [[package]]
 name = "sp-externalities"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "environmental",
  "parity-scale-codec",
@@ -7533,7 +7533,7 @@ dependencies = [
 
 [[package]]
 name = "sp-finality-grandpa"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "finality-grandpa",
  "log",
@@ -7548,7 +7548,7 @@ dependencies = [
 
 [[package]]
 name = "sp-finality-tracker"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "sp-inherents",
@@ -7557,7 +7557,7 @@ dependencies = [
 
 [[package]]
 name = "sp-inherents"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "derive_more",
  "parity-scale-codec",
@@ -7568,7 +7568,7 @@ dependencies = [
 
 [[package]]
 name = "sp-io"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "futures 0.3.4",
  "hash-db",
@@ -7587,7 +7587,7 @@ dependencies = [
 
 [[package]]
 name = "sp-keyring"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "lazy_static",
  "sp-core",
@@ -7597,7 +7597,7 @@ dependencies = [
 
 [[package]]
 name = "sp-offchain"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "sp-api",
  "sp-core",
@@ -7607,7 +7607,7 @@ dependencies = [
 
 [[package]]
 name = "sp-panic-handler"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "backtrace",
  "log",
@@ -7615,7 +7615,7 @@ dependencies = [
 
 [[package]]
 name = "sp-phragmen"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "rand 0.7.3",
@@ -7630,7 +7630,7 @@ dependencies = [
 
 [[package]]
 name = "sp-phragmen-compact"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
@@ -7651,7 +7651,7 @@ dependencies = [
 
 [[package]]
 name = "sp-rpc"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "serde",
  "serde_json",
@@ -7660,7 +7660,7 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "hash256-std-hasher",
  "impl-trait-for-tuples",
@@ -7682,7 +7682,7 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime-interface"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "primitive-types",
@@ -7702,7 +7702,7 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime-interface-proc-macro"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "Inflector",
  "proc-macro-crate",
@@ -7713,7 +7713,7 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime-interface-test"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "sc-executor",
  "sp-core",
@@ -7728,7 +7728,7 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime-interface-test-wasm"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "sp-core",
  "sp-io",
@@ -7739,7 +7739,7 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime-interface-test-wasm-deprecated"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "sp-core",
  "sp-io",
@@ -7750,7 +7750,7 @@ dependencies = [
 
 [[package]]
 name = "sp-sandbox"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "assert_matches",
  "parity-scale-codec",
@@ -7764,7 +7764,7 @@ dependencies = [
 
 [[package]]
 name = "sp-serializer"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "serde",
  "serde_json",
@@ -7772,7 +7772,7 @@ dependencies = [
 
 [[package]]
 name = "sp-session"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -7784,7 +7784,7 @@ dependencies = [
 
 [[package]]
 name = "sp-staking"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "sp-runtime",
@@ -7793,7 +7793,7 @@ dependencies = [
 
 [[package]]
 name = "sp-state-machine"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "hash-db",
  "hex-literal",
@@ -7813,11 +7813,11 @@ dependencies = [
 
 [[package]]
 name = "sp-std"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 
 [[package]]
 name = "sp-storage"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "impl-serde 0.2.3",
  "ref-cast",
@@ -7828,7 +7828,7 @@ dependencies = [
 
 [[package]]
 name = "sp-test-primitives"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "parity-util-mem",
@@ -7840,7 +7840,7 @@ dependencies = [
 
 [[package]]
 name = "sp-timestamp"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "impl-trait-for-tuples",
  "parity-scale-codec",
@@ -7853,14 +7853,14 @@ dependencies = [
 
 [[package]]
 name = "sp-tracing"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "tracing",
 ]
 
 [[package]]
 name = "sp-transaction-pool"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "derive_more",
  "futures 0.3.4",
@@ -7874,7 +7874,7 @@ dependencies = [
 
 [[package]]
 name = "sp-trie"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "criterion 0.2.11",
  "hash-db",
@@ -7892,7 +7892,7 @@ dependencies = [
 
 [[package]]
 name = "sp-utils"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "futures 0.3.4",
  "futures-core",
@@ -7902,7 +7902,7 @@ dependencies = [
 
 [[package]]
 name = "sp-version"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "impl-serde 0.2.3",
  "parity-scale-codec",
@@ -7913,7 +7913,7 @@ dependencies = [
 
 [[package]]
 name = "sp-wasm-interface"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "impl-trait-for-tuples",
  "parity-scale-codec",
@@ -8028,7 +8028,7 @@ dependencies = [
 
 [[package]]
 name = "subkey"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "clap",
  "derive_more",
@@ -8070,7 +8070,7 @@ dependencies = [
 
 [[package]]
 name = "substrate-browser-utils"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "chrono",
  "clear_on_drop",
@@ -8096,14 +8096,14 @@ dependencies = [
 
 [[package]]
 name = "substrate-build-script-utils"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "platforms",
 ]
 
 [[package]]
 name = "substrate-frame-rpc-support"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -8119,7 +8119,7 @@ dependencies = [
 
 [[package]]
 name = "substrate-frame-rpc-system"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "env_logger 0.7.1",
  "frame-system-rpc-runtime-api",
@@ -8142,7 +8142,7 @@ dependencies = [
 
 [[package]]
 name = "substrate-prometheus-endpoint"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 dependencies = [
  "async-std",
  "derive_more",
@@ -8155,7 +8155,7 @@ dependencies = [
 
 [[package]]
 name = "substrate-test-client"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "futures 0.3.4",
  "hash-db",
@@ -8175,7 +8175,7 @@ dependencies = [
 
 [[package]]
 name = "substrate-test-runtime"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "cfg-if",
  "frame-executive",
@@ -8218,7 +8218,7 @@ dependencies = [
 
 [[package]]
 name = "substrate-test-runtime-client"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "futures 0.3.4",
  "parity-scale-codec",
@@ -8237,7 +8237,7 @@ dependencies = [
 
 [[package]]
 name = "substrate-test-runtime-transaction-pool"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "derive_more",
  "futures 0.3.4",
@@ -8252,7 +8252,7 @@ dependencies = [
 
 [[package]]
 name = "substrate-test-utils"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 
 [[package]]
 name = "substrate-wasm-builder"
diff --git a/substrate/bin/node-template/node/Cargo.toml b/substrate/bin/node-template/node/Cargo.toml
index 4e8b3ff196..79f63f211a 100644
--- a/substrate/bin/node-template/node/Cargo.toml
+++ b/substrate/bin/node-template/node/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "node-template"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Anonymous"]
 description = "Substrate Node template"
 edition = "2018"
@@ -21,25 +21,25 @@ log = "0.4.8"
 structopt = "0.3.8"
 parking_lot = "0.10.0"
 
-sc-cli = { version = "0.8.0-rc1", path = "../../../client/cli" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sc-executor = { version = "0.8.0-rc1", path = "../../../client/executor" }
-sc-service = { version = "0.8.0-rc1", path = "../../../client/service" }
-sp-inherents = { version = "2.0.0-rc1", path = "../../../primitives/inherents" }
-sc-transaction-pool = { version = "2.0.0-rc1", path = "../../../client/transaction-pool" }
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../../primitives/transaction-pool" }
-sc-network = { version = "0.8.0-rc1", path = "../../../client/network" }
-sc-consensus-aura = { version = "0.8.0-rc1", path = "../../../client/consensus/aura" }
-sp-consensus-aura = { version = "0.8.0-rc1", path = "../../../primitives/consensus/aura" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
-sc-consensus = { version = "0.8.0-rc1", path = "../../../client/consensus/common" }
-sc-finality-grandpa = { version = "0.8.0-rc1", path = "../../../client/finality-grandpa" }
-sp-finality-grandpa = { version = "2.0.0-rc1", path = "../../../primitives/finality-grandpa" }
-sc-client-api = { version = "2.0.0-rc1", path = "../../../client/api" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sc-basic-authorship = { path = "../../../client/basic-authorship", version = "0.8.0-rc1"}
+sc-cli = { version = "0.8.0-rc2", path = "../../../client/cli" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sc-executor = { version = "0.8.0-rc2", path = "../../../client/executor" }
+sc-service = { version = "0.8.0-rc2", path = "../../../client/service" }
+sp-inherents = { version = "2.0.0-rc2", path = "../../../primitives/inherents" }
+sc-transaction-pool = { version = "2.0.0-rc2", path = "../../../client/transaction-pool" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../../primitives/transaction-pool" }
+sc-network = { version = "0.8.0-rc2", path = "../../../client/network" }
+sc-consensus-aura = { version = "0.8.0-rc2", path = "../../../client/consensus/aura" }
+sp-consensus-aura = { version = "0.8.0-rc2", path = "../../../primitives/consensus/aura" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
+sc-consensus = { version = "0.8.0-rc2", path = "../../../client/consensus/common" }
+sc-finality-grandpa = { version = "0.8.0-rc2", path = "../../../client/finality-grandpa" }
+sp-finality-grandpa = { version = "2.0.0-rc2", path = "../../../primitives/finality-grandpa" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../../client/api" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sc-basic-authorship = { path = "../../../client/basic-authorship", version = "0.8.0-rc2"}
 
-node-template-runtime = { version = "2.0.0-rc1", path = "../runtime" }
+node-template-runtime = { version = "2.0.0-rc2", path = "../runtime" }
 
 [build-dependencies]
-substrate-build-script-utils = { version = "2.0.0-rc1", path = "../../../utils/build-script-utils" }
+substrate-build-script-utils = { version = "2.0.0-rc2", path = "../../../utils/build-script-utils" }
diff --git a/substrate/bin/node-template/pallets/template/Cargo.toml b/substrate/bin/node-template/pallets/template/Cargo.toml
index 1bfd6fe5b2..15e7cfd4ba 100644
--- a/substrate/bin/node-template/pallets/template/Cargo.toml
+++ b/substrate/bin/node-template/pallets/template/Cargo.toml
@@ -2,7 +2,7 @@
 authors = ['Anonymous']
 edition = '2018'
 name = 'pallet-template'
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 license = "Unlicense"
 homepage = "https://substrate.dev"
 repository = "https://github.com/paritytech/substrate/"
@@ -16,26 +16,26 @@ codec = { package = "parity-scale-codec", version = "1.3.0", default-features =
 
 [dependencies.frame-support]
 default-features = false
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 path = "../../../../frame/support"
 
 [dependencies.frame-system]
 default-features = false
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 path = "../../../../frame/system"
 [dev-dependencies.sp-core]
 default-features = false
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 path = "../../../../primitives/core"
 
 [dev-dependencies.sp-io]
 default-features = false
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 path = "../../../../primitives/io"
 
 [dev-dependencies.sp-runtime]
 default-features = false
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 path = "../../../../primitives/runtime"
 
 
diff --git a/substrate/bin/node-template/runtime/Cargo.toml b/substrate/bin/node-template/runtime/Cargo.toml
index fcec09ccea..d6ee62cb1a 100644
--- a/substrate/bin/node-template/runtime/Cargo.toml
+++ b/substrate/bin/node-template/runtime/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "node-template-runtime"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Anonymous"]
 edition = "2018"
 license = "Unlicense"
@@ -13,31 +13,31 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 
-aura = { version = "2.0.0-rc1", default-features = false, package = "pallet-aura", path = "../../../frame/aura" }
-balances = { version = "2.0.0-rc1", default-features = false, package = "pallet-balances", path = "../../../frame/balances" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/support" }
-grandpa = { version = "2.0.0-rc1", default-features = false, package = "pallet-grandpa", path = "../../../frame/grandpa" }
-randomness-collective-flip = { version = "2.0.0-rc1", default-features = false, package = "pallet-randomness-collective-flip", path = "../../../frame/randomness-collective-flip" }
-sudo = { version = "2.0.0-rc1", default-features = false, package = "pallet-sudo", path = "../../../frame/sudo" }
-system = { version = "2.0.0-rc1", default-features = false, package = "frame-system", path = "../../../frame/system" }
-timestamp = { version = "2.0.0-rc1", default-features = false, package = "pallet-timestamp", path = "../../../frame/timestamp" }
-transaction-payment = { version = "2.0.0-rc1", default-features = false, package = "pallet-transaction-payment", path = "../../../frame/transaction-payment" }
-frame-executive = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/executive" }
+aura = { version = "2.0.0-rc2", default-features = false, package = "pallet-aura", path = "../../../frame/aura" }
+balances = { version = "2.0.0-rc2", default-features = false, package = "pallet-balances", path = "../../../frame/balances" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/support" }
+grandpa = { version = "2.0.0-rc2", default-features = false, package = "pallet-grandpa", path = "../../../frame/grandpa" }
+randomness-collective-flip = { version = "2.0.0-rc2", default-features = false, package = "pallet-randomness-collective-flip", path = "../../../frame/randomness-collective-flip" }
+sudo = { version = "2.0.0-rc2", default-features = false, package = "pallet-sudo", path = "../../../frame/sudo" }
+system = { version = "2.0.0-rc2", default-features = false, package = "frame-system", path = "../../../frame/system" }
+timestamp = { version = "2.0.0-rc2", default-features = false, package = "pallet-timestamp", path = "../../../frame/timestamp" }
+transaction-payment = { version = "2.0.0-rc2", default-features = false, package = "pallet-transaction-payment", path = "../../../frame/transaction-payment" }
+frame-executive = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/executive" }
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/api" }
-sp-block-builder = { path = "../../../primitives/block-builder", default-features = false, version = "2.0.0-rc1"}
-sp-consensus-aura = { version = "0.8.0-rc1", default-features = false, path = "../../../primitives/consensus/aura" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/core" }
-sp-inherents = { path = "../../../primitives/inherents", default-features = false, version = "2.0.0-rc1"}
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/io" }
-sp-offchain = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/offchain" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/runtime" }
-sp-session = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/session" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/std" }
-sp-transaction-pool = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/transaction-pool" }
-sp-version = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/version" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/api" }
+sp-block-builder = { path = "../../../primitives/block-builder", default-features = false, version = "2.0.0-rc2"}
+sp-consensus-aura = { version = "0.8.0-rc2", default-features = false, path = "../../../primitives/consensus/aura" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/core" }
+sp-inherents = { path = "../../../primitives/inherents", default-features = false, version = "2.0.0-rc2"}
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/io" }
+sp-offchain = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/offchain" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/runtime" }
+sp-session = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/session" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/std" }
+sp-transaction-pool = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/transaction-pool" }
+sp-version = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/version" }
 
-template = { version = "2.0.0-rc1", default-features = false, path = "../pallets/template", package = "pallet-template" }
+template = { version = "2.0.0-rc2", default-features = false, path = "../pallets/template", package = "pallet-template" }
 
 [build-dependencies]
 wasm-builder-runner = { version = "1.0.5", package = "substrate-wasm-builder-runner", path = "../../../utils/wasm-builder-runner" }
diff --git a/substrate/bin/node/bench/Cargo.toml b/substrate/bin/node/bench/Cargo.toml
index 53eb5d507a..0cb8e006d0 100644
--- a/substrate/bin/node/bench/Cargo.toml
+++ b/substrate/bin/node/bench/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "node-bench"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Substrate node integration benchmarks."
 edition = "2018"
@@ -10,21 +10,21 @@ license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
 
 [dependencies]
 log = "0.4.8"
-node-primitives = { version = "2.0.0-rc1", path = "../primitives" }
-node-testing = { version = "2.0.0-rc1", path = "../testing" }
-node-runtime = { version = "2.0.0-rc1", path = "../runtime" }
-sc-cli = { version = "0.8.0-rc1", path = "../../../client/cli" }
-sc-client-api = { version = "2.0.0-rc1", path = "../../../client/api/" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../../primitives/state-machine" }
+node-primitives = { version = "2.0.0-rc2", path = "../primitives" }
+node-testing = { version = "2.0.0-rc2", path = "../testing" }
+node-runtime = { version = "2.0.0-rc2", path = "../runtime" }
+sc-cli = { version = "0.8.0-rc2", path = "../../../client/cli" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../../client/api/" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../../primitives/state-machine" }
 serde = "1.0.101"
 serde_json = "1.0.41"
 structopt = "0.3"
 derive_more = "0.99.2"
 kvdb = "0.6"
 kvdb-rocksdb = "0.8"
-sp-trie = { version = "2.0.0-rc1", path = "../../../primitives/trie" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
+sp-trie = { version = "2.0.0-rc2", path = "../../../primitives/trie" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
 hash-db = "0.15.2"
 tempfile = "3.1.0"
 fs_extra = "1"
diff --git a/substrate/bin/node/browser-testing/Cargo.toml b/substrate/bin/node/browser-testing/Cargo.toml
index 07a74b5671..7628582fbb 100644
--- a/substrate/bin/node/browser-testing/Cargo.toml
+++ b/substrate/bin/node/browser-testing/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "node-browser-testing"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Tests for the in-browser light client."
 edition = "2018"
@@ -17,5 +17,5 @@ wasm-bindgen-futures = "0.4.10"
 wasm-bindgen-test = "0.3.10"
 futures = "0.3.4"
 
-node-cli = { path = "../cli", default-features = false, features = ["browser"] , version = "2.0.0-rc1"}
-sc-rpc-api = { path = "../../../client/rpc-api" , version = "0.8.0-rc1"}
+node-cli = { path = "../cli", default-features = false, features = ["browser"] , version = "2.0.0-rc2"}
+sc-rpc-api = { path = "../../../client/rpc-api" , version = "0.8.0-rc2"}
diff --git a/substrate/bin/node/cli/Cargo.toml b/substrate/bin/node/cli/Cargo.toml
index 2efb58aeeb..f2b25068ed 100644
--- a/substrate/bin/node/cli/Cargo.toml
+++ b/substrate/bin/node/cli/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "node-cli"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Generic Substrate node implementation in Rust."
 build = "build.rs"
@@ -46,76 +46,76 @@ tracing = "0.1.10"
 parking_lot = "0.10.0"
 
 # primitives
-sp-authority-discovery = { version = "2.0.0-rc1",  path = "../../../primitives/authority-discovery" }
-sp-consensus-babe = { version = "0.8.0-rc1", path = "../../../primitives/consensus/babe" }
-grandpa-primitives = { version = "2.0.0-rc1", package = "sp-finality-grandpa", path = "../../../primitives/finality-grandpa" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/timestamp" }
-sp-finality-tracker = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/finality-tracker" }
-sp-inherents = { version = "2.0.0-rc1", path = "../../../primitives/inherents" }
-sp-keyring = { version = "2.0.0-rc1", path = "../../../primitives/keyring" }
-sp-io = { version = "2.0.0-rc1", path = "../../../primitives/io" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../../primitives/transaction-pool" }
+sp-authority-discovery = { version = "2.0.0-rc2",  path = "../../../primitives/authority-discovery" }
+sp-consensus-babe = { version = "0.8.0-rc2", path = "../../../primitives/consensus/babe" }
+grandpa-primitives = { version = "2.0.0-rc2", package = "sp-finality-grandpa", path = "../../../primitives/finality-grandpa" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/timestamp" }
+sp-finality-tracker = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/finality-tracker" }
+sp-inherents = { version = "2.0.0-rc2", path = "../../../primitives/inherents" }
+sp-keyring = { version = "2.0.0-rc2", path = "../../../primitives/keyring" }
+sp-io = { version = "2.0.0-rc2", path = "../../../primitives/io" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../../primitives/transaction-pool" }
 
 # client dependencies
-sc-client-api = { version = "2.0.0-rc1", path = "../../../client/api" }
-sc-chain-spec = { version = "2.0.0-rc1", path = "../../../client/chain-spec" }
-sc-consensus = { version = "0.8.0-rc1", path = "../../../client/consensus/common" }
-sc-transaction-pool = { version = "2.0.0-rc1", path = "../../../client/transaction-pool" }
-sc-network = { version = "0.8.0-rc1", path = "../../../client/network" }
-sc-consensus-babe = { version = "0.8.0-rc1", path = "../../../client/consensus/babe" }
-grandpa = { version = "0.8.0-rc1", package = "sc-finality-grandpa", path = "../../../client/finality-grandpa" }
-sc-client-db = { version = "0.8.0-rc1", default-features = false, path = "../../../client/db" }
-sc-offchain = { version = "2.0.0-rc1", path = "../../../client/offchain" }
-sc-rpc = { version = "2.0.0-rc1", path = "../../../client/rpc" }
-sc-basic-authorship = { version = "0.8.0-rc1", path = "../../../client/basic-authorship" }
-sc-service = { version = "0.8.0-rc1", default-features = false, path = "../../../client/service" }
-sc-tracing = { version = "2.0.0-rc1", path = "../../../client/tracing" }
-sc-telemetry = { version = "2.0.0-rc1", path = "../../../client/telemetry" }
-sc-authority-discovery = { version = "0.8.0-rc1",  path = "../../../client/authority-discovery" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../../client/api" }
+sc-chain-spec = { version = "2.0.0-rc2", path = "../../../client/chain-spec" }
+sc-consensus = { version = "0.8.0-rc2", path = "../../../client/consensus/common" }
+sc-transaction-pool = { version = "2.0.0-rc2", path = "../../../client/transaction-pool" }
+sc-network = { version = "0.8.0-rc2", path = "../../../client/network" }
+sc-consensus-babe = { version = "0.8.0-rc2", path = "../../../client/consensus/babe" }
+grandpa = { version = "0.8.0-rc2", package = "sc-finality-grandpa", path = "../../../client/finality-grandpa" }
+sc-client-db = { version = "0.8.0-rc2", default-features = false, path = "../../../client/db" }
+sc-offchain = { version = "2.0.0-rc2", path = "../../../client/offchain" }
+sc-rpc = { version = "2.0.0-rc2", path = "../../../client/rpc" }
+sc-basic-authorship = { version = "0.8.0-rc2", path = "../../../client/basic-authorship" }
+sc-service = { version = "0.8.0-rc2", default-features = false, path = "../../../client/service" }
+sc-tracing = { version = "2.0.0-rc2", path = "../../../client/tracing" }
+sc-telemetry = { version = "2.0.0-rc2", path = "../../../client/telemetry" }
+sc-authority-discovery = { version = "0.8.0-rc2",  path = "../../../client/authority-discovery" }
 
 # frame dependencies
-pallet-indices = { version = "2.0.0-rc1", path = "../../../frame/indices" }
-pallet-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/timestamp" }
-pallet-contracts = { version = "2.0.0-rc1", path = "../../../frame/contracts" }
-frame-system = { version = "2.0.0-rc1", path = "../../../frame/system" }
-pallet-balances = { version = "2.0.0-rc1", path = "../../../frame/balances" }
-pallet-transaction-payment = { version = "2.0.0-rc1", path = "../../../frame/transaction-payment" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/support" }
-pallet-im-online = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/im-online" }
-pallet-authority-discovery = { version = "2.0.0-rc1", path = "../../../frame/authority-discovery" }
-pallet-staking = { version = "2.0.0-rc1", path = "../../../frame/staking" }
-pallet-grandpa = { version = "2.0.0-rc1", path = "../../../frame/grandpa" }
+pallet-indices = { version = "2.0.0-rc2", path = "../../../frame/indices" }
+pallet-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/timestamp" }
+pallet-contracts = { version = "2.0.0-rc2", path = "../../../frame/contracts" }
+frame-system = { version = "2.0.0-rc2", path = "../../../frame/system" }
+pallet-balances = { version = "2.0.0-rc2", path = "../../../frame/balances" }
+pallet-transaction-payment = { version = "2.0.0-rc2", path = "../../../frame/transaction-payment" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/support" }
+pallet-im-online = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/im-online" }
+pallet-authority-discovery = { version = "2.0.0-rc2", path = "../../../frame/authority-discovery" }
+pallet-staking = { version = "2.0.0-rc2", path = "../../../frame/staking" }
+pallet-grandpa = { version = "2.0.0-rc2", path = "../../../frame/grandpa" }
 
 # node-specific dependencies
-node-runtime = { version = "2.0.0-rc1", path = "../runtime" }
-node-rpc = { version = "2.0.0-rc1", path = "../rpc" }
-node-primitives = { version = "2.0.0-rc1", path = "../primitives" }
-node-executor = { version = "2.0.0-rc1", path = "../executor" }
+node-runtime = { version = "2.0.0-rc2", path = "../runtime" }
+node-rpc = { version = "2.0.0-rc2", path = "../rpc" }
+node-primitives = { version = "2.0.0-rc2", path = "../primitives" }
+node-executor = { version = "2.0.0-rc2", path = "../executor" }
 
 # CLI-specific dependencies
-sc-cli = { version = "0.8.0-rc1", optional = true, path = "../../../client/cli" }
-frame-benchmarking-cli = { version = "2.0.0-rc1", optional = true, path = "../../../utils/frame/benchmarking-cli" }
-node-inspect = { version = "0.8.0-rc1", optional = true, path = "../inspect" }
+sc-cli = { version = "0.8.0-rc2", optional = true, path = "../../../client/cli" }
+frame-benchmarking-cli = { version = "2.0.0-rc2", optional = true, path = "../../../utils/frame/benchmarking-cli" }
+node-inspect = { version = "0.8.0-rc2", optional = true, path = "../inspect" }
 
 # WASM-specific dependencies
 wasm-bindgen = { version = "0.2.57", optional = true }
 wasm-bindgen-futures = { version = "0.4.7", optional = true }
-browser-utils = { package = "substrate-browser-utils", path = "../../../utils/browser", optional = true, version = "0.8.0-rc1"}
+browser-utils = { package = "substrate-browser-utils", path = "../../../utils/browser", optional = true, version = "0.8.0-rc2"}
 
 [target.'cfg(target_arch="x86_64")'.dependencies]
-node-executor = { version = "2.0.0-rc1", path = "../executor", features = [ "wasmtime" ] }
-sc-cli = { version = "0.8.0-rc1", optional = true, path = "../../../client/cli", features = [ "wasmtime" ] }
-sc-service = { version = "0.8.0-rc1", default-features = false, path = "../../../client/service", features = [ "wasmtime" ] }
+node-executor = { version = "2.0.0-rc2", path = "../executor", features = [ "wasmtime" ] }
+sc-cli = { version = "0.8.0-rc2", optional = true, path = "../../../client/cli", features = [ "wasmtime" ] }
+sc-service = { version = "0.8.0-rc2", default-features = false, path = "../../../client/service", features = [ "wasmtime" ] }
 
 [dev-dependencies]
-sc-keystore = { version = "2.0.0-rc1", path = "../../../client/keystore" }
-sc-consensus = { version = "0.8.0-rc1", path = "../../../client/consensus/common" }
-sc-consensus-babe = { version = "0.8.0-rc1", features = ["test-helpers"], path = "../../../client/consensus/babe" }
-sc-consensus-epochs = { version = "0.8.0-rc1", path = "../../../client/consensus/epochs" }
-sc-service-test = { version = "2.0.0-rc1", path = "../../../client/service/test" }
+sc-keystore = { version = "2.0.0-rc2", path = "../../../client/keystore" }
+sc-consensus = { version = "0.8.0-rc2", path = "../../../client/consensus/common" }
+sc-consensus-babe = { version = "0.8.0-rc2", features = ["test-helpers"], path = "../../../client/consensus/babe" }
+sc-consensus-epochs = { version = "0.8.0-rc2", path = "../../../client/consensus/epochs" }
+sc-service-test = { version = "2.0.0-rc2", path = "../../../client/service/test" }
 futures = "0.3.4"
 tempfile = "3.1.0"
 assert_cmd = "1.0"
@@ -126,12 +126,12 @@ platforms = "0.2.1"
 
 [build-dependencies]
 structopt = { version = "0.3.8", optional = true }
-node-inspect = { version = "0.8.0-rc1", optional = true, path = "../inspect" }
-frame-benchmarking-cli = { version = "2.0.0-rc1", optional = true, path = "../../../utils/frame/benchmarking-cli" }
-substrate-build-script-utils = { version = "2.0.0-rc1", optional = true, path = "../../../utils/build-script-utils" }
+node-inspect = { version = "0.8.0-rc2", optional = true, path = "../inspect" }
+frame-benchmarking-cli = { version = "2.0.0-rc2", optional = true, path = "../../../utils/frame/benchmarking-cli" }
+substrate-build-script-utils = { version = "2.0.0-rc2", optional = true, path = "../../../utils/build-script-utils" }
 
 [build-dependencies.sc-cli]
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 package = "sc-cli"
 path = "../../../client/cli"
 optional = true
diff --git a/substrate/bin/node/executor/Cargo.toml b/substrate/bin/node/executor/Cargo.toml
index 101a080668..83a16a023f 100644
--- a/substrate/bin/node/executor/Cargo.toml
+++ b/substrate/bin/node/executor/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "node-executor"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Substrate node implementation in Rust."
 edition = "2018"
@@ -13,34 +13,34 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-node-primitives = { version = "2.0.0-rc1", path = "../primitives" }
-node-runtime = { version = "2.0.0-rc1", path = "../runtime" }
-sc-executor = { version = "0.8.0-rc1", path = "../../../client/executor" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-io = { version = "2.0.0-rc1", path = "../../../primitives/io" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../../primitives/state-machine" }
-sp-trie = { version = "2.0.0-rc1", path = "../../../primitives/trie" }
+node-primitives = { version = "2.0.0-rc2", path = "../primitives" }
+node-runtime = { version = "2.0.0-rc2", path = "../runtime" }
+sc-executor = { version = "0.8.0-rc2", path = "../../../client/executor" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-io = { version = "2.0.0-rc2", path = "../../../primitives/io" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../../primitives/state-machine" }
+sp-trie = { version = "2.0.0-rc2", path = "../../../primitives/trie" }
 trie-root = "0.16.0"
-frame-benchmarking = { version = "2.0.0-rc1", path = "../../../frame/benchmarking" }
+frame-benchmarking = { version = "2.0.0-rc2", path = "../../../frame/benchmarking" }
 
 [dev-dependencies]
 criterion = "0.3.0"
-frame-support = { version = "2.0.0-rc1", path = "../../../frame/support" }
-frame-system = { version = "2.0.0-rc1", path = "../../../frame/system" }
-node-testing = { version = "2.0.0-rc1", path = "../testing" }
-pallet-balances = { version = "2.0.0-rc1", path = "../../../frame/balances" }
-pallet-contracts = { version = "2.0.0-rc1", path = "../../../frame/contracts" }
-pallet-grandpa = { version = "2.0.0-rc1", path = "../../../frame/grandpa" }
-pallet-im-online = { version = "2.0.0-rc1", path = "../../../frame/im-online" }
-pallet-indices = { version = "2.0.0-rc1", path = "../../../frame/indices" }
-pallet-session = { version = "2.0.0-rc1", path = "../../../frame/session" }
-pallet-timestamp = { version = "2.0.0-rc1", path = "../../../frame/timestamp" }
-pallet-transaction-payment = { version = "2.0.0-rc1", path = "../../../frame/transaction-payment" }
-pallet-treasury = { version = "2.0.0-rc1", path = "../../../frame/treasury" }
-sp-application-crypto = { version = "2.0.0-rc1", path = "../../../primitives/application-crypto" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-externalities = { version = "0.8.0-rc1", path = "../../../primitives/externalities" }
-substrate-test-client = { version = "2.0.0-rc1", path = "../../../test-utils/client" }
+frame-support = { version = "2.0.0-rc2", path = "../../../frame/support" }
+frame-system = { version = "2.0.0-rc2", path = "../../../frame/system" }
+node-testing = { version = "2.0.0-rc2", path = "../testing" }
+pallet-balances = { version = "2.0.0-rc2", path = "../../../frame/balances" }
+pallet-contracts = { version = "2.0.0-rc2", path = "../../../frame/contracts" }
+pallet-grandpa = { version = "2.0.0-rc2", path = "../../../frame/grandpa" }
+pallet-im-online = { version = "2.0.0-rc2", path = "../../../frame/im-online" }
+pallet-indices = { version = "2.0.0-rc2", path = "../../../frame/indices" }
+pallet-session = { version = "2.0.0-rc2", path = "../../../frame/session" }
+pallet-timestamp = { version = "2.0.0-rc2", path = "../../../frame/timestamp" }
+pallet-transaction-payment = { version = "2.0.0-rc2", path = "../../../frame/transaction-payment" }
+pallet-treasury = { version = "2.0.0-rc2", path = "../../../frame/treasury" }
+sp-application-crypto = { version = "2.0.0-rc2", path = "../../../primitives/application-crypto" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-externalities = { version = "0.8.0-rc2", path = "../../../primitives/externalities" }
+substrate-test-client = { version = "2.0.0-rc2", path = "../../../test-utils/client" }
 wabt = "0.9.2"
 
 [features]
diff --git a/substrate/bin/node/inspect/Cargo.toml b/substrate/bin/node/inspect/Cargo.toml
index 7f75bd2ca3..6006e8c15c 100644
--- a/substrate/bin/node/inspect/Cargo.toml
+++ b/substrate/bin/node/inspect/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "node-inspect"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -14,10 +14,10 @@ targets = ["x86_64-unknown-linux-gnu"]
 codec = { package = "parity-scale-codec", version = "1.3.0" }
 derive_more = "0.99"
 log = "0.4.8"
-sc-cli = { version = "0.8.0-rc1", path = "../../../client/cli" }
-sc-client-api = { version = "2.0.0-rc1", path = "../../../client/api" }
-sc-service = { version = "0.8.0-rc1", default-features = false, path = "../../../client/service" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
+sc-cli = { version = "0.8.0-rc2", path = "../../../client/cli" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../../client/api" }
+sc-service = { version = "0.8.0-rc2", default-features = false, path = "../../../client/service" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
 structopt = "0.3.8"
diff --git a/substrate/bin/node/primitives/Cargo.toml b/substrate/bin/node/primitives/Cargo.toml
index ff45a3d81d..55ee2c3829 100644
--- a/substrate/bin/node/primitives/Cargo.toml
+++ b/substrate/bin/node/primitives/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "node-primitives"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,13 +12,13 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/system" }
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/application-crypto" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/runtime" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/system" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/application-crypto" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/runtime" }
 
 [dev-dependencies]
-sp-serializer = { version = "2.0.0-rc1", path = "../../../primitives/serializer" }
+sp-serializer = { version = "2.0.0-rc2", path = "../../../primitives/serializer" }
 pretty_assertions = "0.6.1"
 
 [features]
diff --git a/substrate/bin/node/rpc-client/Cargo.toml b/substrate/bin/node/rpc-client/Cargo.toml
index c81a5a5ba9..0b529d116c 100644
--- a/substrate/bin/node/rpc-client/Cargo.toml
+++ b/substrate/bin/node/rpc-client/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "node-rpc-client"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -16,5 +16,5 @@ futures = "0.1.29"
 hyper = "0.12.35"
 jsonrpc-core-client = { version = "14.0.5", default-features = false, features = ["http"] }
 log = "0.4.8"
-node-primitives = { version = "2.0.0-rc1", path = "../primitives" }
-sc-rpc = { version = "2.0.0-rc1", path = "../../../client/rpc" }
+node-primitives = { version = "2.0.0-rc2", path = "../primitives" }
+sc-rpc = { version = "2.0.0-rc2", path = "../../../client/rpc" }
diff --git a/substrate/bin/node/rpc/Cargo.toml b/substrate/bin/node/rpc/Cargo.toml
index f5dbf72ea1..00b8be99b1 100644
--- a/substrate/bin/node/rpc/Cargo.toml
+++ b/substrate/bin/node/rpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "node-rpc"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -11,23 +11,23 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sc-client-api = { version = "2.0.0-rc1", path = "../../../client/api" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../../client/api" }
 jsonrpc-core = "14.0.3"
-node-primitives = { version = "2.0.0-rc1", path = "../primitives" }
-node-runtime = { version = "2.0.0-rc1", path = "../runtime" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-api = { version = "2.0.0-rc1", path = "../../../primitives/api" }
-pallet-contracts-rpc = { version = "0.8.0-rc1", path = "../../../frame/contracts/rpc/" }
-pallet-transaction-payment-rpc = { version = "2.0.0-rc1", path = "../../../frame/transaction-payment/rpc/" }
-substrate-frame-rpc-system = { version = "2.0.0-rc1", path = "../../../utils/frame/rpc/system" }
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../../primitives/transaction-pool" }
-sc-consensus-babe = { version = "0.8.0-rc1", path = "../../../client/consensus/babe" }
-sc-consensus-babe-rpc = { version = "0.8.0-rc1", path = "../../../client/consensus/babe/rpc" }
-sp-consensus-babe = { version = "0.8.0-rc1", path = "../../../primitives/consensus/babe" }
-sc-keystore = { version = "2.0.0-rc1", path = "../../../client/keystore" }
-sc-consensus-epochs = { version = "0.8.0-rc1", path = "../../../client/consensus/epochs" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-sc-finality-grandpa = { version = "0.8.0-rc1", path = "../../../client/finality-grandpa" }
-sc-finality-grandpa-rpc = { version = "0.8.0-rc1", path = "../../../client/finality-grandpa/rpc" }
-sc-rpc-api = { version = "0.8.0-rc1", path = "../../../client/rpc-api" }
+node-primitives = { version = "2.0.0-rc2", path = "../primitives" }
+node-runtime = { version = "2.0.0-rc2", path = "../runtime" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-api = { version = "2.0.0-rc2", path = "../../../primitives/api" }
+pallet-contracts-rpc = { version = "0.8.0-rc2", path = "../../../frame/contracts/rpc/" }
+pallet-transaction-payment-rpc = { version = "2.0.0-rc2", path = "../../../frame/transaction-payment/rpc/" }
+substrate-frame-rpc-system = { version = "2.0.0-rc2", path = "../../../utils/frame/rpc/system" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../../primitives/transaction-pool" }
+sc-consensus-babe = { version = "0.8.0-rc2", path = "../../../client/consensus/babe" }
+sc-consensus-babe-rpc = { version = "0.8.0-rc2", path = "../../../client/consensus/babe/rpc" }
+sp-consensus-babe = { version = "0.8.0-rc2", path = "../../../primitives/consensus/babe" }
+sc-keystore = { version = "2.0.0-rc2", path = "../../../client/keystore" }
+sc-consensus-epochs = { version = "0.8.0-rc2", path = "../../../client/consensus/epochs" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+sc-finality-grandpa = { version = "0.8.0-rc2", path = "../../../client/finality-grandpa" }
+sc-finality-grandpa-rpc = { version = "0.8.0-rc2", path = "../../../client/finality-grandpa/rpc" }
+sc-rpc-api = { version = "0.8.0-rc2", path = "../../../client/rpc-api" }
diff --git a/substrate/bin/node/runtime/Cargo.toml b/substrate/bin/node/runtime/Cargo.toml
index b3591f12bc..1bf61c046d 100644
--- a/substrate/bin/node/runtime/Cargo.toml
+++ b/substrate/bin/node/runtime/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "node-runtime"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 build = "build.rs"
@@ -20,68 +20,68 @@ serde = { version = "1.0.102", optional = true }
 static_assertions = "1.1.0"
 
 # primitives
-sp-authority-discovery = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/authority-discovery" }
-sp-consensus-babe = { version = "0.8.0-rc1", default-features = false, path = "../../../primitives/consensus/babe" }
-sp-block-builder = { path = "../../../primitives/block-builder", default-features = false, version = "2.0.0-rc1"}
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/inherents" }
-node-primitives = { version = "2.0.0-rc1", default-features = false, path = "../primitives" }
-sp-offchain = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/offchain" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/core" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/std" }
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/api" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/runtime" }
-sp-staking = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/staking" }
-sp-keyring = { version = "2.0.0-rc1", optional = true, path = "../../../primitives/keyring" }
-sp-session = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/session" }
-sp-transaction-pool = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/transaction-pool" }
-sp-version = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/version" }
+sp-authority-discovery = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/authority-discovery" }
+sp-consensus-babe = { version = "0.8.0-rc2", default-features = false, path = "../../../primitives/consensus/babe" }
+sp-block-builder = { path = "../../../primitives/block-builder", default-features = false, version = "2.0.0-rc2"}
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/inherents" }
+node-primitives = { version = "2.0.0-rc2", default-features = false, path = "../primitives" }
+sp-offchain = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/offchain" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/std" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/api" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/runtime" }
+sp-staking = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/staking" }
+sp-keyring = { version = "2.0.0-rc2", optional = true, path = "../../../primitives/keyring" }
+sp-session = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/session" }
+sp-transaction-pool = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/transaction-pool" }
+sp-version = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/version" }
 
 # frame dependencies
-frame-executive = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/executive" }
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/benchmarking", optional = true }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/system" }
-frame-system-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/system/benchmarking", optional = true }
-frame-system-rpc-runtime-api = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/system/rpc/runtime-api/" }
-pallet-authority-discovery = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/authority-discovery" }
-pallet-authorship = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/authorship" }
-pallet-babe = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/babe" }
-pallet-balances = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/balances" }
-pallet-collective = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/collective" }
-pallet-contracts = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/contracts" }
-pallet-contracts-primitives = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/contracts/common/" }
-pallet-contracts-rpc-runtime-api = { version = "0.8.0-rc1", default-features = false, path = "../../../frame/contracts/rpc/runtime-api/" }
-pallet-democracy = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/democracy" }
-pallet-elections-phragmen = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/elections-phragmen" }
-pallet-finality-tracker = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/finality-tracker" }
-pallet-grandpa = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/grandpa" }
-pallet-im-online = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/im-online" }
-pallet-indices = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/indices" }
-pallet-identity = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/identity" }
-pallet-membership = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/membership" }
-pallet-offences = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/offences" }
-pallet-offences-benchmarking = { version = "2.0.0-rc1", path = "../../../frame/offences/benchmarking", default-features = false, optional = true }
-pallet-randomness-collective-flip = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/randomness-collective-flip" }
-pallet-recovery = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/recovery" }
-pallet-session = { version = "2.0.0-rc1", features = ["historical"], path = "../../../frame/session", default-features = false }
-pallet-session-benchmarking = { version = "2.0.0-rc1", path = "../../../frame/session/benchmarking", default-features = false, optional = true }
-pallet-staking = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/staking" }
-pallet-staking-reward-curve = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/staking/reward-curve" }
-pallet-scheduler = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/scheduler" }
-pallet-society = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/society" }
-pallet-sudo = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/sudo" }
-pallet-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/timestamp" }
-pallet-treasury = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/treasury" }
-pallet-utility = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/utility" }
-pallet-transaction-payment = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/transaction-payment" }
-pallet-transaction-payment-rpc-runtime-api = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/transaction-payment/rpc/runtime-api/" }
-pallet-vesting = { version = "2.0.0-rc1", default-features = false, path = "../../../frame/vesting" }
+frame-executive = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/executive" }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/benchmarking", optional = true }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/system" }
+frame-system-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/system/benchmarking", optional = true }
+frame-system-rpc-runtime-api = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/system/rpc/runtime-api/" }
+pallet-authority-discovery = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/authority-discovery" }
+pallet-authorship = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/authorship" }
+pallet-babe = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/babe" }
+pallet-balances = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/balances" }
+pallet-collective = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/collective" }
+pallet-contracts = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/contracts" }
+pallet-contracts-primitives = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/contracts/common/" }
+pallet-contracts-rpc-runtime-api = { version = "0.8.0-rc2", default-features = false, path = "../../../frame/contracts/rpc/runtime-api/" }
+pallet-democracy = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/democracy" }
+pallet-elections-phragmen = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/elections-phragmen" }
+pallet-finality-tracker = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/finality-tracker" }
+pallet-grandpa = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/grandpa" }
+pallet-im-online = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/im-online" }
+pallet-indices = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/indices" }
+pallet-identity = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/identity" }
+pallet-membership = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/membership" }
+pallet-offences = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/offences" }
+pallet-offences-benchmarking = { version = "2.0.0-rc2", path = "../../../frame/offences/benchmarking", default-features = false, optional = true }
+pallet-randomness-collective-flip = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/randomness-collective-flip" }
+pallet-recovery = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/recovery" }
+pallet-session = { version = "2.0.0-rc2", features = ["historical"], path = "../../../frame/session", default-features = false }
+pallet-session-benchmarking = { version = "2.0.0-rc2", path = "../../../frame/session/benchmarking", default-features = false, optional = true }
+pallet-staking = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/staking" }
+pallet-staking-reward-curve = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/staking/reward-curve" }
+pallet-scheduler = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/scheduler" }
+pallet-society = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/society" }
+pallet-sudo = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/sudo" }
+pallet-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/timestamp" }
+pallet-treasury = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/treasury" }
+pallet-utility = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/utility" }
+pallet-transaction-payment = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/transaction-payment" }
+pallet-transaction-payment-rpc-runtime-api = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/transaction-payment/rpc/runtime-api/" }
+pallet-vesting = { version = "2.0.0-rc2", default-features = false, path = "../../../frame/vesting" }
 
 [build-dependencies]
 wasm-builder-runner = { version = "1.0.5", package = "substrate-wasm-builder-runner", path = "../../../utils/wasm-builder-runner" }
 
 [dev-dependencies]
-sp-io = { version = "2.0.0-rc1", path = "../../../primitives/io" }
+sp-io = { version = "2.0.0-rc2", path = "../../../primitives/io" }
 
 [features]
 default = ["std"]
diff --git a/substrate/bin/node/testing/Cargo.toml b/substrate/bin/node/testing/Cargo.toml
index 1feb707125..7fe39763a4 100644
--- a/substrate/bin/node/testing/Cargo.toml
+++ b/substrate/bin/node/testing/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "node-testing"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Test utilities for Substrate node."
 edition = "2018"
@@ -13,40 +13,40 @@ publish = true
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-pallet-balances = { version = "2.0.0-rc1", path = "../../../frame/balances" }
-sc-service = { version = "0.8.0-rc1", features = ["test-helpers", "db"],  path = "../../../client/service" }
-sc-client-db = { version = "0.8.0-rc1", path = "../../../client/db/", features = ["kvdb-rocksdb", "parity-db"] }
-sc-client-api = { version = "2.0.0-rc1", path = "../../../client/api/" }
+pallet-balances = { version = "2.0.0-rc2", path = "../../../frame/balances" }
+sc-service = { version = "0.8.0-rc2", features = ["test-helpers", "db"],  path = "../../../client/service" }
+sc-client-db = { version = "0.8.0-rc2", path = "../../../client/db/", features = ["kvdb-rocksdb", "parity-db"] }
+sc-client-api = { version = "2.0.0-rc2", path = "../../../client/api/" }
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-pallet-contracts = { version = "2.0.0-rc1", path = "../../../frame/contracts" }
-pallet-grandpa = { version = "2.0.0-rc1", path = "../../../frame/grandpa" }
-pallet-indices = { version = "2.0.0-rc1", path = "../../../frame/indices" }
-sp-keyring = { version = "2.0.0-rc1", path = "../../../primitives/keyring" }
-node-executor = { version = "2.0.0-rc1", path = "../executor" }
-node-primitives = { version = "2.0.0-rc1", path = "../primitives" }
-node-runtime = { version = "2.0.0-rc1", path = "../runtime" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-io = { version = "2.0.0-rc1", path = "../../../primitives/io" }
-frame-support = { version = "2.0.0-rc1", path = "../../../frame/support" }
-pallet-session = { version = "2.0.0-rc1", path = "../../../frame/session" }
-pallet-society = { version = "2.0.0-rc1", path = "../../../frame/society" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-pallet-staking = { version = "2.0.0-rc1", path = "../../../frame/staking" }
-sc-executor = { version = "0.8.0-rc1", path = "../../../client/executor", features = ["wasmtime"] }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
-frame-system = { version = "2.0.0-rc1", path = "../../../frame/system" }
-substrate-test-client = { version = "2.0.0-rc1", path = "../../../test-utils/client" }
-pallet-timestamp = { version = "2.0.0-rc1", path = "../../../frame/timestamp" }
-pallet-transaction-payment = { version = "2.0.0-rc1", path = "../../../frame/transaction-payment" }
-pallet-treasury = { version = "2.0.0-rc1", path = "../../../frame/treasury" }
+pallet-contracts = { version = "2.0.0-rc2", path = "../../../frame/contracts" }
+pallet-grandpa = { version = "2.0.0-rc2", path = "../../../frame/grandpa" }
+pallet-indices = { version = "2.0.0-rc2", path = "../../../frame/indices" }
+sp-keyring = { version = "2.0.0-rc2", path = "../../../primitives/keyring" }
+node-executor = { version = "2.0.0-rc2", path = "../executor" }
+node-primitives = { version = "2.0.0-rc2", path = "../primitives" }
+node-runtime = { version = "2.0.0-rc2", path = "../runtime" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-io = { version = "2.0.0-rc2", path = "../../../primitives/io" }
+frame-support = { version = "2.0.0-rc2", path = "../../../frame/support" }
+pallet-session = { version = "2.0.0-rc2", path = "../../../frame/session" }
+pallet-society = { version = "2.0.0-rc2", path = "../../../frame/society" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+pallet-staking = { version = "2.0.0-rc2", path = "../../../frame/staking" }
+sc-executor = { version = "0.8.0-rc2", path = "../../../client/executor", features = ["wasmtime"] }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
+frame-system = { version = "2.0.0-rc2", path = "../../../frame/system" }
+substrate-test-client = { version = "2.0.0-rc2", path = "../../../test-utils/client" }
+pallet-timestamp = { version = "2.0.0-rc2", path = "../../../frame/timestamp" }
+pallet-transaction-payment = { version = "2.0.0-rc2", path = "../../../frame/transaction-payment" }
+pallet-treasury = { version = "2.0.0-rc2", path = "../../../frame/treasury" }
 wabt = "0.9.2"
-sp-api = { version = "2.0.0-rc1", path = "../../../primitives/api" }
-sp-finality-tracker = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/finality-tracker" }
-sp-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/timestamp" }
-sp-block-builder = { version = "2.0.0-rc1", path = "../../../primitives/block-builder" }
-sc-block-builder = { version = "0.8.0-rc1", path = "../../../client/block-builder" }
-sp-inherents = { version = "2.0.0-rc1", path = "../../../primitives/inherents" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
+sp-api = { version = "2.0.0-rc2", path = "../../../primitives/api" }
+sp-finality-tracker = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/finality-tracker" }
+sp-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/timestamp" }
+sp-block-builder = { version = "2.0.0-rc2", path = "../../../primitives/block-builder" }
+sc-block-builder = { version = "0.8.0-rc2", path = "../../../client/block-builder" }
+sp-inherents = { version = "2.0.0-rc2", path = "../../../primitives/inherents" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
 log = "0.4.8"
 tempfile = "3.1.0"
 fs_extra = "1"
@@ -54,4 +54,4 @@ futures = "0.3.1"
 
 [dev-dependencies]
 criterion = "0.3.0"
-sc-cli = { version = "0.8.0-rc1", path = "../../../client/cli" }
+sc-cli = { version = "0.8.0-rc2", path = "../../../client/cli" }
diff --git a/substrate/bin/utils/chain-spec-builder/Cargo.toml b/substrate/bin/utils/chain-spec-builder/Cargo.toml
index 919a500718..7ac1da4606 100644
--- a/substrate/bin/utils/chain-spec-builder/Cargo.toml
+++ b/substrate/bin/utils/chain-spec-builder/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "chain-spec-builder"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 build = "build.rs"
@@ -13,9 +13,9 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 ansi_term = "0.12.1"
-sc-keystore = { version = "2.0.0-rc1", path = "../../../client/keystore" }
-sc-chain-spec = { version = "2.0.0-rc1", path = "../../../client/chain-spec" }
-node-cli = { version = "2.0.0-rc1", path = "../../node/cli" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
+sc-keystore = { version = "2.0.0-rc2", path = "../../../client/keystore" }
+sc-chain-spec = { version = "2.0.0-rc2", path = "../../../client/chain-spec" }
+node-cli = { version = "2.0.0-rc2", path = "../../node/cli" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
 rand = "0.7.2"
 structopt = "0.3.8"
diff --git a/substrate/bin/utils/subkey/Cargo.toml b/substrate/bin/utils/subkey/Cargo.toml
index 43076062d3..c955ac3dd1 100644
--- a/substrate/bin/utils/subkey/Cargo.toml
+++ b/substrate/bin/utils/subkey/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "subkey"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -12,10 +12,10 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 futures = "0.1.29"
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-node-runtime = { version = "2.0.0-rc1", path = "../../node/runtime" }
-node-primitives = { version = "2.0.0-rc1", path = "../../node/primitives" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+node-runtime = { version = "2.0.0-rc2", path = "../../node/runtime" }
+node-primitives = { version = "2.0.0-rc2", path = "../../node/primitives" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
 rand = "0.7.2"
 clap = "2.33.0"
 tiny-bip39 = "0.7"
@@ -23,14 +23,14 @@ substrate-bip39 = "0.4.1"
 hex = "0.4.0"
 hex-literal = "0.2.1"
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-frame-system = { version = "2.0.0-rc1", path = "../../../frame/system" }
-pallet-balances = { version = "2.0.0-rc1", path = "../../../frame/balances" }
-pallet-transaction-payment = { version = "2.0.0-rc1", path = "../../../frame/transaction-payment" }
-pallet-grandpa = { version = "2.0.0-rc1", path = "../../../frame/grandpa" }
+frame-system = { version = "2.0.0-rc2", path = "../../../frame/system" }
+pallet-balances = { version = "2.0.0-rc2", path = "../../../frame/balances" }
+pallet-transaction-payment = { version = "2.0.0-rc2", path = "../../../frame/transaction-payment" }
+pallet-grandpa = { version = "2.0.0-rc2", path = "../../../frame/grandpa" }
 rpassword = "4.0.1"
 itertools = "0.8.2"
 derive_more = { version = "0.99.2" }
-sc-rpc = { version = "2.0.0-rc1", path = "../../../client/rpc" }
+sc-rpc = { version = "2.0.0-rc2", path = "../../../client/rpc" }
 jsonrpc-core-client = { version = "14.0.3", features = ["http"] }
 hyper = "0.12.35"
 libp2p = "0.19.1"
diff --git a/substrate/client/api/Cargo.toml b/substrate/client/api/Cargo.toml
index 8afe365363..f46c45a691 100644
--- a/substrate/client/api/Cargo.toml
+++ b/substrate/client/api/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-client-api"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -14,36 +14,36 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-consensus = { version = "0.8.0-rc1", path = "../../primitives/consensus/common" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../primitives/consensus/common" }
 derive_more = { version = "0.99.2" }
-sc-executor = { version = "0.8.0-rc1", path = "../executor" }
-sp-externalities = { version = "0.8.0-rc1", path = "../../primitives/externalities" }
+sc-executor = { version = "0.8.0-rc2", path = "../executor" }
+sp-externalities = { version = "0.8.0-rc2", path = "../../primitives/externalities" }
 fnv = { version = "1.0.6" }
 futures = { version = "0.3.1" }
 hash-db = { version = "0.15.2", default-features = false }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../primitives/blockchain" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../primitives/blockchain" }
 hex-literal = { version = "0.2.1" }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/inherents" }
-sp-keyring = { version = "2.0.0-rc1", path = "../../primitives/keyring" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/inherents" }
+sp-keyring = { version = "2.0.0-rc2", path = "../../primitives/keyring" }
 kvdb = "0.6.0"
 log = { version = "0.4.8" }
 parking_lot = "0.10.0"
 lazy_static =  "1.4.0"
-sp-database = { version = "2.0.0-rc1", path = "../../primitives/database" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-version = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/version" }
-sp-api = { version = "2.0.0-rc1", path = "../../primitives/api" }
-sp-utils = { version = "2.0.0-rc1", path = "../../primitives/utils" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../primitives/state-machine" }
-sc-telemetry = { version = "2.0.0-rc1", path = "../telemetry" }
-sp-trie = { version = "2.0.0-rc1", path = "../../primitives/trie" }
-sp-storage = { version = "2.0.0-rc1", path = "../../primitives/storage" }
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../primitives/transaction-pool" }
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", version = "0.8.0-rc1", path = "../../utils/prometheus" }
+sp-database = { version = "2.0.0-rc2", path = "../../primitives/database" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-version = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/version" }
+sp-api = { version = "2.0.0-rc2", path = "../../primitives/api" }
+sp-utils = { version = "2.0.0-rc2", path = "../../primitives/utils" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../primitives/state-machine" }
+sc-telemetry = { version = "2.0.0-rc2", path = "../telemetry" }
+sp-trie = { version = "2.0.0-rc2", path = "../../primitives/trie" }
+sp-storage = { version = "2.0.0-rc2", path = "../../primitives/storage" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../primitives/transaction-pool" }
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", version = "0.8.0-rc2", path = "../../utils/prometheus" }
 
 [dev-dependencies]
 kvdb-memorydb = "0.6.0"
-sp-test-primitives = { version = "2.0.0-rc1", path = "../../primitives/test-primitives" }
-substrate-test-runtime = { version = "2.0.0-rc1", path = "../../test-utils/runtime"  }
+sp-test-primitives = { version = "2.0.0-rc2", path = "../../primitives/test-primitives" }
+substrate-test-runtime = { version = "2.0.0-rc2", path = "../../test-utils/runtime"  }
diff --git a/substrate/client/authority-discovery/Cargo.toml b/substrate/client/authority-discovery/Cargo.toml
index 3a40adf7c6..c32fb67c51 100644
--- a/substrate/client/authority-discovery/Cargo.toml
+++ b/substrate/client/authority-discovery/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-authority-discovery"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 build = "build.rs"
@@ -23,21 +23,21 @@ futures = "0.3.4"
 futures-timer = "3.0.1"
 libp2p = { version = "0.19.1", default-features = false, features = ["secp256k1", "libp2p-websocket"] }
 log = "0.4.8"
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus", version = "0.8.0-rc1"}
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus", version = "0.8.0-rc2"}
 prost = "0.6.1"
 rand = "0.7.2"
-sc-client-api = { version = "2.0.0-rc1", path = "../api" }
-sc-keystore = { version = "2.0.0-rc1", path = "../keystore" }
-sc-network = { version = "0.8.0-rc1", path = "../network" }
+sc-client-api = { version = "2.0.0-rc2", path = "../api" }
+sc-keystore = { version = "2.0.0-rc2", path = "../keystore" }
+sc-network = { version = "0.8.0-rc2", path = "../network" }
 serde_json = "1.0.41"
-sp-authority-discovery = { version = "2.0.0-rc1", path = "../../primitives/authority-discovery" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../primitives/blockchain" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
-sp-api = { version = "2.0.0-rc1", path = "../../primitives/api" }
+sp-authority-discovery = { version = "2.0.0-rc2", path = "../../primitives/authority-discovery" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../primitives/blockchain" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
+sp-api = { version = "2.0.0-rc2", path = "../../primitives/api" }
 
 [dev-dependencies]
 env_logger = "0.7.0"
 quickcheck = "0.9.0"
-sc-peerset = { version = "2.0.0-rc1", path = "../peerset" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../test-utils/runtime/client"}
+sc-peerset = { version = "2.0.0-rc2", path = "../peerset" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../test-utils/runtime/client"}
diff --git a/substrate/client/basic-authorship/Cargo.toml b/substrate/client/basic-authorship/Cargo.toml
index a452f08524..dad9c54f84 100644
--- a/substrate/client/basic-authorship/Cargo.toml
+++ b/substrate/client/basic-authorship/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-basic-authorship"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -16,21 +16,21 @@ codec = { package = "parity-scale-codec", version = "1.3.0" }
 futures = "0.3.4"
 futures-timer = "3.0.1"
 log = "0.4.8"
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus", version = "0.8.0-rc1"}
-sp-api = { version = "2.0.0-rc1", path = "../../primitives/api" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../primitives/blockchain" }
-sc-client-api = { version = "2.0.0-rc1", path = "../api" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../primitives/consensus/common" }
-sp-inherents = { version = "2.0.0-rc1", path = "../../primitives/inherents" }
-sc-telemetry = { version = "2.0.0-rc1", path = "../telemetry" }
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../primitives/transaction-pool" }
-sc-block-builder = { version = "0.8.0-rc1", path = "../block-builder" }
-sc-proposer-metrics = { version = "0.8.0-rc1", path = "../proposer-metrics" }
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus", version = "0.8.0-rc2"}
+sp-api = { version = "2.0.0-rc2", path = "../../primitives/api" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../primitives/blockchain" }
+sc-client-api = { version = "2.0.0-rc2", path = "../api" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../primitives/consensus/common" }
+sp-inherents = { version = "2.0.0-rc2", path = "../../primitives/inherents" }
+sc-telemetry = { version = "2.0.0-rc2", path = "../telemetry" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../primitives/transaction-pool" }
+sc-block-builder = { version = "0.8.0-rc2", path = "../block-builder" }
+sc-proposer-metrics = { version = "0.8.0-rc2", path = "../proposer-metrics" }
 tokio-executor = { version = "0.2.0-alpha.6", features = ["blocking"] }
 
 [dev-dependencies]
-sc-transaction-pool = { version = "2.0.0-rc1", path = "../../client/transaction-pool" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../test-utils/runtime/client" }
+sc-transaction-pool = { version = "2.0.0-rc2", path = "../../client/transaction-pool" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../test-utils/runtime/client" }
 parking_lot = "0.10.0"
diff --git a/substrate/client/block-builder/Cargo.toml b/substrate/client/block-builder/Cargo.toml
index 0be48deb49..fb5add1d8f 100644
--- a/substrate/client/block-builder/Cargo.toml
+++ b/substrate/client/block-builder/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-block-builder"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -13,16 +13,16 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 
 [dependencies]
-sp-state-machine = { version = "0.8.0-rc1", path = "../../primitives/state-machine" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
-sp-api = { version = "2.0.0-rc1", path = "../../primitives/api" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../primitives/consensus/common" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../primitives/blockchain" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-block-builder = { version = "2.0.0-rc1", path = "../../primitives/block-builder" }
-sc-client-api = { version = "2.0.0-rc1", path = "../api" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../primitives/state-machine" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
+sp-api = { version = "2.0.0-rc2", path = "../../primitives/api" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../primitives/consensus/common" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../primitives/blockchain" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-block-builder = { version = "2.0.0-rc2", path = "../../primitives/block-builder" }
+sc-client-api = { version = "2.0.0-rc2", path = "../api" }
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
 
 [dev-dependencies]
 substrate-test-runtime-client = { path = "../../test-utils/runtime/client" }
-sp-trie = { version = "2.0.0-rc1", path = "../../primitives/trie" }
+sp-trie = { version = "2.0.0-rc2", path = "../../primitives/trie" }
diff --git a/substrate/client/chain-spec/Cargo.toml b/substrate/client/chain-spec/Cargo.toml
index aa32d97b25..eee78ef676 100644
--- a/substrate/client/chain-spec/Cargo.toml
+++ b/substrate/client/chain-spec/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-chain-spec"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -12,12 +12,12 @@ description = "Substrate chain configurations."
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sc-chain-spec-derive = { version = "2.0.0-rc1", path = "./derive" }
+sc-chain-spec-derive = { version = "2.0.0-rc2", path = "./derive" }
 impl-trait-for-tuples = "0.1.3"
-sc-network = { version = "0.8.0-rc1", path = "../network" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
+sc-network = { version = "0.8.0-rc2", path = "../network" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
 serde = { version = "1.0.101", features = ["derive"] }
 serde_json = "1.0.41"
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
-sp-chain-spec = { version = "2.0.0-rc1", path = "../../primitives/chain-spec" }
-sc-telemetry = { version = "2.0.0-rc1", path = "../telemetry" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
+sp-chain-spec = { version = "2.0.0-rc2", path = "../../primitives/chain-spec" }
+sc-telemetry = { version = "2.0.0-rc2", path = "../telemetry" }
diff --git a/substrate/client/chain-spec/derive/Cargo.toml b/substrate/client/chain-spec/derive/Cargo.toml
index 4bda059264..1f753689ae 100644
--- a/substrate/client/chain-spec/derive/Cargo.toml
+++ b/substrate/client/chain-spec/derive/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-chain-spec-derive"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
diff --git a/substrate/client/cli/Cargo.toml b/substrate/client/cli/Cargo.toml
index dd751612df..8c19da95c4 100644
--- a/substrate/client/cli/Cargo.toml
+++ b/substrate/client/cli/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-cli"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Substrate CLI interface."
 edition = "2018"
@@ -25,23 +25,23 @@ tokio = { version = "0.2.9", features = [ "signal", "rt-core", "rt-threaded" ] }
 futures = "0.3.4"
 fdlimit = "0.1.4"
 serde_json = "1.0.41"
-sc-informant = { version = "0.8.0-rc1", path = "../informant" }
-sp-panic-handler = { version = "2.0.0-rc1", path = "../../primitives/panic-handler" }
-sc-client-api = { version = "2.0.0-rc1", path = "../api" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../primitives/blockchain" }
-sc-network = { version = "0.8.0-rc1", path = "../network" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
-sp-utils = { version = "2.0.0-rc1", path = "../../primitives/utils" }
-sp-version = { version = "2.0.0-rc1", path = "../../primitives/version" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sc-service = { version = "0.8.0-rc1", default-features = false, path = "../service" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../primitives/state-machine" }
-sc-telemetry = { version = "2.0.0-rc1", path = "../telemetry" }
-substrate-prometheus-endpoint = { path = "../../utils/prometheus" , version = "0.8.0-rc1"}
-sp-keyring = { version = "2.0.0-rc1", path = "../../primitives/keyring" }
+sc-informant = { version = "0.8.0-rc2", path = "../informant" }
+sp-panic-handler = { version = "2.0.0-rc2", path = "../../primitives/panic-handler" }
+sc-client-api = { version = "2.0.0-rc2", path = "../api" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../primitives/blockchain" }
+sc-network = { version = "0.8.0-rc2", path = "../network" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
+sp-utils = { version = "2.0.0-rc2", path = "../../primitives/utils" }
+sp-version = { version = "2.0.0-rc2", path = "../../primitives/version" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sc-service = { version = "0.8.0-rc2", default-features = false, path = "../service" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../primitives/state-machine" }
+sc-telemetry = { version = "2.0.0-rc2", path = "../telemetry" }
+substrate-prometheus-endpoint = { path = "../../utils/prometheus" , version = "0.8.0-rc2"}
+sp-keyring = { version = "2.0.0-rc2", path = "../../primitives/keyring" }
 names = "0.11.0"
 structopt = "0.3.8"
-sc-tracing = { version = "2.0.0-rc1", path = "../tracing" }
+sc-tracing = { version = "2.0.0-rc2", path = "../tracing" }
 chrono = "0.4.10"
 parity-util-mem = { version = "0.6.1", default-features = false, features = ["primitive-types"] }
 
diff --git a/substrate/client/consensus/aura/Cargo.toml b/substrate/client/consensus/aura/Cargo.toml
index b9be82bd63..afd7246266 100644
--- a/substrate/client/consensus/aura/Cargo.toml
+++ b/substrate/client/consensus/aura/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-consensus-aura"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Aura consensus algorithm for substrate"
 edition = "2018"
@@ -12,37 +12,37 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-application-crypto = { version = "2.0.0-rc1", path = "../../../primitives/application-crypto" }
-sp-consensus-aura = { version = "0.8.0-rc1", path = "../../../primitives/consensus/aura" }
-sp-block-builder = { version = "2.0.0-rc1", path = "../../../primitives/block-builder" }
-sc-block-builder = { version = "0.8.0-rc1", path = "../../../client/block-builder" }
-sc-client-api = { version = "2.0.0-rc1", path = "../../api" }
+sp-application-crypto = { version = "2.0.0-rc2", path = "../../../primitives/application-crypto" }
+sp-consensus-aura = { version = "0.8.0-rc2", path = "../../../primitives/consensus/aura" }
+sp-block-builder = { version = "2.0.0-rc2", path = "../../../primitives/block-builder" }
+sc-block-builder = { version = "0.8.0-rc2", path = "../../../client/block-builder" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../api" }
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
 derive_more = "0.99.2"
 futures = "0.3.4"
 futures-timer = "3.0.1"
-sp-inherents = { version = "2.0.0-rc1", path = "../../../primitives/inherents" }
-sc-keystore = { version = "2.0.0-rc1", path = "../../keystore" }
+sp-inherents = { version = "2.0.0-rc2", path = "../../../primitives/inherents" }
+sc-keystore = { version = "2.0.0-rc2", path = "../../keystore" }
 log = "0.4.8"
 parking_lot = "0.10.0"
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-sp-io = { version = "2.0.0-rc1", path = "../../../primitives/io" }
-sp-version = { version = "2.0.0-rc1", path = "../../../primitives/version" }
-sc-consensus-slots = { version = "0.8.0-rc1", path = "../slots" }
-sp-api = { version = "2.0.0-rc1", path = "../../../primitives/api" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-timestamp = { version = "2.0.0-rc1", path = "../../../primitives/timestamp" }
-sc-telemetry = { version = "2.0.0-rc1", path = "../../telemetry" }
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../../utils/prometheus", version = "0.8.0-rc1"}
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+sp-io = { version = "2.0.0-rc2", path = "../../../primitives/io" }
+sp-version = { version = "2.0.0-rc2", path = "../../../primitives/version" }
+sc-consensus-slots = { version = "0.8.0-rc2", path = "../slots" }
+sp-api = { version = "2.0.0-rc2", path = "../../../primitives/api" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-timestamp = { version = "2.0.0-rc2", path = "../../../primitives/timestamp" }
+sc-telemetry = { version = "2.0.0-rc2", path = "../../telemetry" }
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../../utils/prometheus", version = "0.8.0-rc2"}
 
 [dev-dependencies]
-sp-keyring = { version = "2.0.0-rc1", path = "../../../primitives/keyring" }
-sc-executor = { version = "0.8.0-rc1", path = "../../executor" }
-sc-network = { version = "0.8.0-rc1", path = "../../network" }
-sc-network-test = { version = "0.8.0-rc1", path = "../../network/test" }
-sc-service = { version = "0.8.0-rc1", default-features = false, path = "../../service" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../../test-utils/runtime/client" }
+sp-keyring = { version = "2.0.0-rc2", path = "../../../primitives/keyring" }
+sc-executor = { version = "0.8.0-rc2", path = "../../executor" }
+sc-network = { version = "0.8.0-rc2", path = "../../network" }
+sc-network-test = { version = "0.8.0-rc2", path = "../../network/test" }
+sc-service = { version = "0.8.0-rc2", default-features = false, path = "../../service" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../../test-utils/runtime/client" }
 env_logger = "0.7.0"
 tempfile = "3.1.0"
diff --git a/substrate/client/consensus/babe/Cargo.toml b/substrate/client/consensus/babe/Cargo.toml
index 154d1509d2..ca77b14d0e 100644
--- a/substrate/client/consensus/babe/Cargo.toml
+++ b/substrate/client/consensus/babe/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-consensus-babe"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "BABE consensus algorithm for substrate"
 edition = "2018"
@@ -14,31 +14,31 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
-sp-consensus-babe = { version = "0.8.0-rc1", path = "../../../primitives/consensus/babe" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-application-crypto = { version = "2.0.0-rc1", path = "../../../primitives/application-crypto" }
+sp-consensus-babe = { version = "0.8.0-rc2", path = "../../../primitives/consensus/babe" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-application-crypto = { version = "2.0.0-rc2", path = "../../../primitives/application-crypto" }
 num-bigint = "0.2.3"
 num-rational = "0.2.2"
 num-traits = "0.2.8"
 serde = { version = "1.0.104", features = ["derive"] }
-sp-version = { version = "2.0.0-rc1", path = "../../../primitives/version" }
-sp-io = { version = "2.0.0-rc1", path = "../../../primitives/io" }
-sp-inherents = { version = "2.0.0-rc1", path = "../../../primitives/inherents" }
-sp-timestamp = { version = "2.0.0-rc1", path = "../../../primitives/timestamp" }
-sc-telemetry = { version = "2.0.0-rc1", path = "../../telemetry" }
-sc-keystore = { version = "2.0.0-rc1", path = "../../keystore" }
-sc-client-api = { version = "2.0.0-rc1", path = "../../api" }
-sc-consensus-epochs = { version = "0.8.0-rc1", path = "../epochs" }
-sp-api = { version = "2.0.0-rc1", path = "../../../primitives/api" }
-sp-block-builder = { version = "2.0.0-rc1", path = "../../../primitives/block-builder" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
-sp-consensus-vrf = { version = "0.8.0-rc1", path = "../../../primitives/consensus/vrf" }
-sc-consensus-uncles = { version = "0.8.0-rc1", path = "../uncles" }
-sc-consensus-slots = { version = "0.8.0-rc1", path = "../slots" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-fork-tree = { version = "2.0.0-rc1", path = "../../../utils/fork-tree" }
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../../utils/prometheus", version = "0.8.0-rc1"}
+sp-version = { version = "2.0.0-rc2", path = "../../../primitives/version" }
+sp-io = { version = "2.0.0-rc2", path = "../../../primitives/io" }
+sp-inherents = { version = "2.0.0-rc2", path = "../../../primitives/inherents" }
+sp-timestamp = { version = "2.0.0-rc2", path = "../../../primitives/timestamp" }
+sc-telemetry = { version = "2.0.0-rc2", path = "../../telemetry" }
+sc-keystore = { version = "2.0.0-rc2", path = "../../keystore" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../api" }
+sc-consensus-epochs = { version = "0.8.0-rc2", path = "../epochs" }
+sp-api = { version = "2.0.0-rc2", path = "../../../primitives/api" }
+sp-block-builder = { version = "2.0.0-rc2", path = "../../../primitives/block-builder" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
+sp-consensus-vrf = { version = "0.8.0-rc2", path = "../../../primitives/consensus/vrf" }
+sc-consensus-uncles = { version = "0.8.0-rc2", path = "../uncles" }
+sc-consensus-slots = { version = "0.8.0-rc2", path = "../slots" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+fork-tree = { version = "2.0.0-rc2", path = "../../../utils/fork-tree" }
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../../utils/prometheus", version = "0.8.0-rc2"}
 futures = "0.3.4"
 futures-timer = "3.0.1"
 parking_lot = "0.10.0"
@@ -50,13 +50,13 @@ pdqselect = "0.1.0"
 derive_more = "0.99.2"
 
 [dev-dependencies]
-sp-keyring = { version = "2.0.0-rc1", path = "../../../primitives/keyring" }
-sc-executor = { version = "0.8.0-rc1", path = "../../executor" }
-sc-network = { version = "0.8.0-rc1", path = "../../network" }
-sc-network-test = { version = "0.8.0-rc1", path = "../../network/test" }
-sc-service = { version = "0.8.0-rc1", default-features = false, path = "../../service" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../../test-utils/runtime/client" }
-sc-block-builder = { version = "0.8.0-rc1", path = "../../block-builder" }
+sp-keyring = { version = "2.0.0-rc2", path = "../../../primitives/keyring" }
+sc-executor = { version = "0.8.0-rc2", path = "../../executor" }
+sc-network = { version = "0.8.0-rc2", path = "../../network" }
+sc-network-test = { version = "0.8.0-rc2", path = "../../network/test" }
+sc-service = { version = "0.8.0-rc2", default-features = false, path = "../../service" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../../test-utils/runtime/client" }
+sc-block-builder = { version = "0.8.0-rc2", path = "../../block-builder" }
 env_logger = "0.7.0"
 tempfile = "3.1.0"
 
diff --git a/substrate/client/consensus/babe/rpc/Cargo.toml b/substrate/client/consensus/babe/rpc/Cargo.toml
index 22c95b6cd1..20f7e48758 100644
--- a/substrate/client/consensus/babe/rpc/Cargo.toml
+++ b/substrate/client/consensus/babe/rpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-consensus-babe-rpc"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "RPC extensions for the BABE consensus algorithm"
 edition = "2018"
@@ -12,27 +12,27 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sc-consensus-babe = { version = "0.8.0-rc1", path = "../" }
-sc-rpc-api = { version = "0.8.0-rc1", path = "../../../rpc-api" }
+sc-consensus-babe = { version = "0.8.0-rc2", path = "../" }
+sc-rpc-api = { version = "0.8.0-rc2", path = "../../../rpc-api" }
 jsonrpc-core = "14.0.3"
 jsonrpc-core-client = "14.0.5"
 jsonrpc-derive = "14.0.3"
-sp-consensus-babe = { version = "0.8.0-rc1", path = "../../../../primitives/consensus/babe" }
+sp-consensus-babe = { version = "0.8.0-rc2", path = "../../../../primitives/consensus/babe" }
 serde = { version = "1.0.104", features=["derive"] }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../../primitives/blockchain" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../../primitives/runtime" }
-sc-consensus-epochs = { version = "0.8.0-rc1", path = "../../epochs" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../../primitives/blockchain" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../../primitives/runtime" }
+sc-consensus-epochs = { version = "0.8.0-rc2", path = "../../epochs" }
 futures = { version = "0.3.4", features = ["compat"] }
 derive_more = "0.99.2"
-sp-api = { version = "2.0.0-rc1", path = "../../../../primitives/api" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../../primitives/consensus/common" }
-sp-core = { version = "2.0.0-rc1", path = "../../../../primitives/core" }
-sc-keystore = { version = "2.0.0-rc1", path = "../../../keystore" }
+sp-api = { version = "2.0.0-rc2", path = "../../../../primitives/api" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../../primitives/consensus/common" }
+sp-core = { version = "2.0.0-rc2", path = "../../../../primitives/core" }
+sc-keystore = { version = "2.0.0-rc2", path = "../../../keystore" }
 
 [dev-dependencies]
-sc-consensus = { version = "0.8.0-rc1", path = "../../../consensus/common" }
+sc-consensus = { version = "0.8.0-rc2", path = "../../../consensus/common" }
 serde_json = "1.0.50"
-sp-application-crypto = { version = "2.0.0-rc1", path = "../../../../primitives/application-crypto" }
-sp-keyring = { version = "2.0.0-rc1", path = "../../../../primitives/keyring" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../../../test-utils/runtime/client" }
+sp-application-crypto = { version = "2.0.0-rc2", path = "../../../../primitives/application-crypto" }
+sp-keyring = { version = "2.0.0-rc2", path = "../../../../primitives/keyring" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../../../test-utils/runtime/client" }
 tempfile = "3.1.0"
diff --git a/substrate/client/consensus/common/Cargo.toml b/substrate/client/consensus/common/Cargo.toml
index c4743c2175..256237900b 100644
--- a/substrate/client/consensus/common/Cargo.toml
+++ b/substrate/client/consensus/common/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-consensus"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -12,7 +12,7 @@ description = "Collection of common consensus specific imlementations for Substr
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sc-client-api = { version = "2.0.0-rc1", path = "../../api" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../api" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
diff --git a/substrate/client/consensus/epochs/Cargo.toml b/substrate/client/consensus/epochs/Cargo.toml
index 04397da31d..969d4f7d2c 100644
--- a/substrate/client/consensus/epochs/Cargo.toml
+++ b/substrate/client/consensus/epochs/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-consensus-epochs"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Generic epochs-based utilities for consensus"
 edition = "2018"
@@ -14,7 +14,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
 parking_lot = "0.10.0"
-fork-tree = { version = "2.0.0-rc1", path = "../../../utils/fork-tree" }
-sp-runtime = {  path = "../../../primitives/runtime" , version = "2.0.0-rc1"}
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-sc-client-api = { path = "../../api" , version = "2.0.0-rc1"}
+fork-tree = { version = "2.0.0-rc2", path = "../../../utils/fork-tree" }
+sp-runtime = {  path = "../../../primitives/runtime" , version = "2.0.0-rc2"}
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+sc-client-api = { path = "../../api" , version = "2.0.0-rc2"}
diff --git a/substrate/client/consensus/manual-seal/Cargo.toml b/substrate/client/consensus/manual-seal/Cargo.toml
index 84050547a5..de2bf68d76 100644
--- a/substrate/client/consensus/manual-seal/Cargo.toml
+++ b/substrate/client/consensus/manual-seal/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-consensus-manual-seal"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Manual sealing engine for Substrate"
 edition = "2018"
@@ -22,20 +22,20 @@ parking_lot = "0.10.0"
 serde = { version = "1.0", features=["derive"] }
 assert_matches = "1.3.0"
 
-sc-client-api = { path = "../../../client/api", version = "2.0.0-rc1" }
-sc-transaction-pool = { path = "../../transaction-pool", version = "2.0.0-rc1" }
-sp-blockchain = { path = "../../../primitives/blockchain", version = "2.0.0-rc1" }
-sp-consensus = { package = "sp-consensus", path = "../../../primitives/consensus/common", version = "0.8.0-rc1" }
-sp-inherents = { path = "../../../primitives/inherents", version = "2.0.0-rc1" }
-sp-runtime = {  path = "../../../primitives/runtime", version = "2.0.0-rc1" }
-sp-core = {  path = "../../../primitives/core", version = "2.0.0-rc1" }
-sp-transaction-pool = { path = "../../../primitives/transaction-pool", version = "2.0.0-rc1" }
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../../utils/prometheus", version = "0.8.0-rc1" }
+sc-client-api = { path = "../../../client/api", version = "2.0.0-rc2" }
+sc-transaction-pool = { path = "../../transaction-pool", version = "2.0.0-rc2" }
+sp-blockchain = { path = "../../../primitives/blockchain", version = "2.0.0-rc2" }
+sp-consensus = { package = "sp-consensus", path = "../../../primitives/consensus/common", version = "0.8.0-rc2" }
+sp-inherents = { path = "../../../primitives/inherents", version = "2.0.0-rc2" }
+sp-runtime = {  path = "../../../primitives/runtime", version = "2.0.0-rc2" }
+sp-core = {  path = "../../../primitives/core", version = "2.0.0-rc2" }
+sp-transaction-pool = { path = "../../../primitives/transaction-pool", version = "2.0.0-rc2" }
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../../utils/prometheus", version = "0.8.0-rc2" }
 
 [dev-dependencies]
-sc-basic-authorship = { path = "../../basic-authorship", version = "0.8.0-rc1" }
-substrate-test-runtime-client = { path = "../../../test-utils/runtime/client", version = "2.0.0-rc1" }
-substrate-test-runtime-transaction-pool = { path = "../../../test-utils/runtime/transaction-pool", version = "2.0.0-rc1" }
+sc-basic-authorship = { path = "../../basic-authorship", version = "0.8.0-rc2" }
+substrate-test-runtime-client = { path = "../../../test-utils/runtime/client", version = "2.0.0-rc2" }
+substrate-test-runtime-transaction-pool = { path = "../../../test-utils/runtime/transaction-pool", version = "2.0.0-rc2" }
 tokio = { version = "0.2", features = ["rt-core", "macros"] }
 env_logger = "0.7.0"
 tempfile = "3.1.0"
diff --git a/substrate/client/consensus/pow/Cargo.toml b/substrate/client/consensus/pow/Cargo.toml
index 252bd04990..c6eab29781 100644
--- a/substrate/client/consensus/pow/Cargo.toml
+++ b/substrate/client/consensus/pow/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-consensus-pow"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "PoW consensus algorithm for substrate"
 edition = "2018"
@@ -13,17 +13,17 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-api = { version = "2.0.0-rc1", path = "../../../primitives/api" }
-sc-client-api = { version = "2.0.0-rc1", path = "../../api" }
-sp-block-builder = { version = "2.0.0-rc1", path = "../../../primitives/block-builder" }
-sp-inherents = { version = "2.0.0-rc1", path = "../../../primitives/inherents" }
-sp-consensus-pow = { version = "0.8.0-rc1", path = "../../../primitives/consensus/pow" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-api = { version = "2.0.0-rc2", path = "../../../primitives/api" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../api" }
+sp-block-builder = { version = "2.0.0-rc2", path = "../../../primitives/block-builder" }
+sp-inherents = { version = "2.0.0-rc2", path = "../../../primitives/inherents" }
+sp-consensus-pow = { version = "0.8.0-rc2", path = "../../../primitives/consensus/pow" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
 log = "0.4.8"
 futures = { version = "0.3.1", features = ["compat"] }
-sp-timestamp = { version = "2.0.0-rc1", path = "../../../primitives/timestamp" }
+sp-timestamp = { version = "2.0.0-rc2", path = "../../../primitives/timestamp" }
 derive_more = "0.99.2"
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../../utils/prometheus", version = "0.8.0-rc1"}
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../../utils/prometheus", version = "0.8.0-rc2"}
diff --git a/substrate/client/consensus/slots/Cargo.toml b/substrate/client/consensus/slots/Cargo.toml
index 25c6917138..6cc4a658e3 100644
--- a/substrate/client/consensus/slots/Cargo.toml
+++ b/substrate/client/consensus/slots/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-consensus-slots"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Generic slots-based utilities for consensus"
 edition = "2018"
@@ -14,20 +14,20 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-sc-client-api = { version = "2.0.0-rc1", path = "../../api" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-application-crypto = { version = "2.0.0-rc1", path = "../../../primitives/application-crypto" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../../primitives/state-machine" }
-sp-api = { version = "2.0.0-rc1", path = "../../../primitives/api" }
-sc-telemetry = { version = "2.0.0-rc1", path = "../../telemetry" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
-sp-inherents = { version = "2.0.0-rc1", path = "../../../primitives/inherents" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../api" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-application-crypto = { version = "2.0.0-rc2", path = "../../../primitives/application-crypto" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../../primitives/state-machine" }
+sp-api = { version = "2.0.0-rc2", path = "../../../primitives/api" }
+sc-telemetry = { version = "2.0.0-rc2", path = "../../telemetry" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
+sp-inherents = { version = "2.0.0-rc2", path = "../../../primitives/inherents" }
 futures = "0.3.4"
 futures-timer = "3.0.1"
 parking_lot = "0.10.0"
 log = "0.4.8"
 
 [dev-dependencies]
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../../test-utils/runtime/client" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../../test-utils/runtime/client" }
diff --git a/substrate/client/consensus/uncles/Cargo.toml b/substrate/client/consensus/uncles/Cargo.toml
index cc97f18386..e01e0720b4 100644
--- a/substrate/client/consensus/uncles/Cargo.toml
+++ b/substrate/client/consensus/uncles/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-consensus-uncles"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Generic uncle inclusion utilities for consensus"
 edition = "2018"
@@ -12,10 +12,10 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sc-client-api = { version = "2.0.0-rc1", path = "../../api" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-authorship = { version = "2.0.0-rc1", path = "../../../primitives/authorship" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
-sp-inherents = { version = "2.0.0-rc1", path = "../../../primitives/inherents" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../api" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-authorship = { version = "2.0.0-rc2", path = "../../../primitives/authorship" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
+sp-inherents = { version = "2.0.0-rc2", path = "../../../primitives/inherents" }
 log = "0.4.8"
diff --git a/substrate/client/db/Cargo.toml b/substrate/client/db/Cargo.toml
index a33fe69643..32e6f9daa2 100644
--- a/substrate/client/db/Cargo.toml
+++ b/substrate/client/db/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-client-db"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -23,22 +23,22 @@ parity-util-mem = { version = "0.6.1", default-features = false, features = ["st
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
 blake2-rfc = "0.2.18"
 
-sc-client-api = { version = "2.0.0-rc1", path = "../api" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../primitives/state-machine" }
-sc-executor = { version = "0.8.0-rc1", path = "../executor" }
-sc-state-db = { version = "0.8.0-rc1", path = "../state-db" }
-sp-trie = { version = "2.0.0-rc1", path = "../../primitives/trie" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../primitives/consensus/common" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../primitives/blockchain" }
-sp-database = { version = "2.0.0-rc1", path = "../../primitives/database" }
+sc-client-api = { version = "2.0.0-rc2", path = "../api" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../primitives/state-machine" }
+sc-executor = { version = "0.8.0-rc2", path = "../executor" }
+sc-state-db = { version = "0.8.0-rc2", path = "../state-db" }
+sp-trie = { version = "2.0.0-rc2", path = "../../primitives/trie" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../primitives/consensus/common" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../primitives/blockchain" }
+sp-database = { version = "2.0.0-rc2", path = "../../primitives/database" }
 parity-db = { version = "0.1.2", optional = true }
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", version = "0.8.0-rc1", path = "../../utils/prometheus" }
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", version = "0.8.0-rc2", path = "../../utils/prometheus" }
 
 [dev-dependencies]
-sp-keyring = { version = "2.0.0-rc1", path = "../../primitives/keyring" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../test-utils/runtime/client" }
+sp-keyring = { version = "2.0.0-rc2", path = "../../primitives/keyring" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../test-utils/runtime/client" }
 env_logger = "0.7.0"
 quickcheck = "0.9"
 kvdb-rocksdb = "0.8"
diff --git a/substrate/client/executor/Cargo.toml b/substrate/client/executor/Cargo.toml
index 2fbc1714c8..7290538f48 100644
--- a/substrate/client/executor/Cargo.toml
+++ b/substrate/client/executor/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-executor"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -15,22 +15,22 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 derive_more = "0.99.2"
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-trie = { version = "2.0.0-rc1", path = "../../primitives/trie" }
-sp-serializer = { version = "2.0.0-rc1", path = "../../primitives/serializer" }
-sp-version = { version = "2.0.0-rc1", path = "../../primitives/version" }
-sp-panic-handler = { version = "2.0.0-rc1", path = "../../primitives/panic-handler" }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-trie = { version = "2.0.0-rc2", path = "../../primitives/trie" }
+sp-serializer = { version = "2.0.0-rc2", path = "../../primitives/serializer" }
+sp-version = { version = "2.0.0-rc2", path = "../../primitives/version" }
+sp-panic-handler = { version = "2.0.0-rc2", path = "../../primitives/panic-handler" }
 wasmi = "0.6.2"
 parity-wasm = "0.41.0"
 lazy_static = "1.4.0"
-sp-api = { version = "2.0.0-rc1", path = "../../primitives/api" }
-sp-wasm-interface = { version = "2.0.0-rc1", path = "../../primitives/wasm-interface" }
-sp-runtime-interface = { version = "2.0.0-rc1", path = "../../primitives/runtime-interface" }
-sp-externalities = { version = "0.8.0-rc1", path = "../../primitives/externalities" }
-sc-executor-common = { version = "0.8.0-rc1", path = "common" }
-sc-executor-wasmi = { version = "0.8.0-rc1", path = "wasmi" }
-sc-executor-wasmtime = { version = "0.8.0-rc1", path = "wasmtime", optional = true }
+sp-api = { version = "2.0.0-rc2", path = "../../primitives/api" }
+sp-wasm-interface = { version = "2.0.0-rc2", path = "../../primitives/wasm-interface" }
+sp-runtime-interface = { version = "2.0.0-rc2", path = "../../primitives/runtime-interface" }
+sp-externalities = { version = "0.8.0-rc2", path = "../../primitives/externalities" }
+sc-executor-common = { version = "0.8.0-rc2", path = "common" }
+sc-executor-wasmi = { version = "0.8.0-rc2", path = "wasmi" }
+sc-executor-wasmtime = { version = "0.8.0-rc2", path = "wasmtime", optional = true }
 parking_lot = "0.10.0"
 log = "0.4.8"
 libsecp256k1 = "0.3.4"
@@ -39,11 +39,11 @@ libsecp256k1 = "0.3.4"
 assert_matches = "1.3.0"
 wabt = "0.9.2"
 hex-literal = "0.2.1"
-sc-runtime-test = { version = "2.0.0-rc1", path = "runtime-test" }
-substrate-test-runtime = { version = "2.0.0-rc1", path = "../../test-utils/runtime" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../primitives/state-machine" }
+sc-runtime-test = { version = "2.0.0-rc2", path = "runtime-test" }
+substrate-test-runtime = { version = "2.0.0-rc2", path = "../../test-utils/runtime" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../primitives/state-machine" }
 test-case = "0.3.3"
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
 
 [features]
 default = [ "std" ]
diff --git a/substrate/client/executor/common/Cargo.toml b/substrate/client/executor/common/Cargo.toml
index df9141d80c..f5d3c38c61 100644
--- a/substrate/client/executor/common/Cargo.toml
+++ b/substrate/client/executor/common/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-executor-common"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -18,11 +18,11 @@ derive_more = "0.99.2"
 parity-wasm = "0.41.0"
 codec = { package = "parity-scale-codec", version = "1.3.0" }
 wasmi = "0.6.2"
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-allocator = { version = "2.0.0-rc1", path = "../../../primitives/allocator" }
-sp-wasm-interface = { version = "2.0.0-rc1", path = "../../../primitives/wasm-interface" }
-sp-runtime-interface = { version = "2.0.0-rc1", path = "../../../primitives/runtime-interface" }
-sp-serializer = { version = "2.0.0-rc1", path = "../../../primitives/serializer" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-allocator = { version = "2.0.0-rc2", path = "../../../primitives/allocator" }
+sp-wasm-interface = { version = "2.0.0-rc2", path = "../../../primitives/wasm-interface" }
+sp-runtime-interface = { version = "2.0.0-rc2", path = "../../../primitives/runtime-interface" }
+sp-serializer = { version = "2.0.0-rc2", path = "../../../primitives/serializer" }
 
 [features]
 default = []
diff --git a/substrate/client/executor/runtime-test/Cargo.toml b/substrate/client/executor/runtime-test/Cargo.toml
index 6ad0338b59..5700ee2f98 100644
--- a/substrate/client/executor/runtime-test/Cargo.toml
+++ b/substrate/client/executor/runtime-test/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-runtime-test"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 build = "build.rs"
@@ -13,12 +13,12 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/io" }
-sp-sandbox = { version = "0.8.0-rc1", default-features = false, path = "../../../primitives/sandbox" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/runtime" }
-sp-allocator = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/allocator" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/io" }
+sp-sandbox = { version = "0.8.0-rc2", default-features = false, path = "../../../primitives/sandbox" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/runtime" }
+sp-allocator = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/allocator" }
 
 [build-dependencies]
 wasm-builder-runner = { version = "1.0.5", package = "substrate-wasm-builder-runner", path = "../../../utils/wasm-builder-runner" }
diff --git a/substrate/client/executor/wasmi/Cargo.toml b/substrate/client/executor/wasmi/Cargo.toml
index c170187658..0c16758c19 100644
--- a/substrate/client/executor/wasmi/Cargo.toml
+++ b/substrate/client/executor/wasmi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-executor-wasmi"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -16,8 +16,8 @@ targets = ["x86_64-unknown-linux-gnu"]
 log = "0.4.8"
 wasmi = "0.6.2"
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-sc-executor-common = { version = "0.8.0-rc1", path = "../common" }
-sp-wasm-interface = { version = "2.0.0-rc1", path = "../../../primitives/wasm-interface" }
-sp-runtime-interface = { version = "2.0.0-rc1", path = "../../../primitives/runtime-interface" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-allocator = { version = "2.0.0-rc1", path = "../../../primitives/allocator" }
+sc-executor-common = { version = "0.8.0-rc2", path = "../common" }
+sp-wasm-interface = { version = "2.0.0-rc2", path = "../../../primitives/wasm-interface" }
+sp-runtime-interface = { version = "2.0.0-rc2", path = "../../../primitives/runtime-interface" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-allocator = { version = "2.0.0-rc2", path = "../../../primitives/allocator" }
diff --git a/substrate/client/executor/wasmtime/Cargo.toml b/substrate/client/executor/wasmtime/Cargo.toml
index b2b4ee1753..2e6d33910c 100644
--- a/substrate/client/executor/wasmtime/Cargo.toml
+++ b/substrate/client/executor/wasmtime/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-executor-wasmtime"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -16,11 +16,11 @@ log = "0.4.8"
 scoped-tls = "1.0"
 parity-wasm = "0.41.0"
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-sc-executor-common = { version = "0.8.0-rc1", path = "../common" }
-sp-wasm-interface = { version = "2.0.0-rc1", path = "../../../primitives/wasm-interface" }
-sp-runtime-interface = { version = "2.0.0-rc1", path = "../../../primitives/runtime-interface" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-allocator = { version = "2.0.0-rc1", path = "../../../primitives/allocator" }
+sc-executor-common = { version = "0.8.0-rc2", path = "../common" }
+sp-wasm-interface = { version = "2.0.0-rc2", path = "../../../primitives/wasm-interface" }
+sp-runtime-interface = { version = "2.0.0-rc2", path = "../../../primitives/runtime-interface" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-allocator = { version = "2.0.0-rc2", path = "../../../primitives/allocator" }
 wasmtime = { package = "substrate-wasmtime", version = "0.16.0-threadsafe.4" }
 wasmtime-runtime = { package = "substrate-wasmtime-runtime", version = "0.16.0-threadsafe.4" }
 wasmtime-environ = "0.16"
diff --git a/substrate/client/finality-grandpa/Cargo.toml b/substrate/client/finality-grandpa/Cargo.toml
index 40dfe7c319..44c9e0f0f3 100644
--- a/substrate/client/finality-grandpa/Cargo.toml
+++ b/substrate/client/finality-grandpa/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-finality-grandpa"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 derive_more = "0.99.2"
-fork-tree = { version = "2.0.0-rc1", path = "../../utils/fork-tree" }
+fork-tree = { version = "2.0.0-rc2", path = "../../utils/fork-tree" }
 futures = "0.3.4"
 futures-timer = "3.0.1"
 log = "0.4.8"
@@ -23,37 +23,37 @@ parking_lot = "0.10.0"
 rand = "0.7.2"
 assert_matches = "1.3.0"
 parity-scale-codec = { version = "1.3.0", features = ["derive"] }
-sp-arithmetic = { version = "2.0.0-rc1", path = "../../primitives/arithmetic" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
-sp-utils = { version = "2.0.0-rc1", path = "../../primitives/utils" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../primitives/consensus/common" }
-sc-consensus = { version = "0.8.0-rc1", path = "../../client/consensus/common" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-api = { version = "2.0.0-rc1", path = "../../primitives/api" }
-sc-telemetry = { version = "2.0.0-rc1", path = "../telemetry" }
-sc-keystore = { version = "2.0.0-rc1", path = "../keystore" }
+sp-arithmetic = { version = "2.0.0-rc2", path = "../../primitives/arithmetic" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
+sp-utils = { version = "2.0.0-rc2", path = "../../primitives/utils" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../primitives/consensus/common" }
+sc-consensus = { version = "0.8.0-rc2", path = "../../client/consensus/common" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-api = { version = "2.0.0-rc2", path = "../../primitives/api" }
+sc-telemetry = { version = "2.0.0-rc2", path = "../telemetry" }
+sc-keystore = { version = "2.0.0-rc2", path = "../keystore" }
 serde_json = "1.0.41"
-sc-client-api = { version = "2.0.0-rc1", path = "../api" }
-sp-inherents = { version = "2.0.0-rc1", path = "../../primitives/inherents" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../primitives/blockchain" }
-sc-network = { version = "0.8.0-rc1", path = "../network" }
-sc-network-gossip = { version = "0.8.0-rc1", path = "../network-gossip" }
-sp-finality-tracker = { version = "2.0.0-rc1", path = "../../primitives/finality-tracker" }
-sp-finality-grandpa = { version = "2.0.0-rc1", path = "../../primitives/finality-grandpa" }
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus", version = "0.8.0-rc1"}
-sc-block-builder = { version = "0.8.0-rc1", path = "../block-builder" }
+sc-client-api = { version = "2.0.0-rc2", path = "../api" }
+sp-inherents = { version = "2.0.0-rc2", path = "../../primitives/inherents" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../primitives/blockchain" }
+sc-network = { version = "0.8.0-rc2", path = "../network" }
+sc-network-gossip = { version = "0.8.0-rc2", path = "../network-gossip" }
+sp-finality-tracker = { version = "2.0.0-rc2", path = "../../primitives/finality-tracker" }
+sp-finality-grandpa = { version = "2.0.0-rc2", path = "../../primitives/finality-grandpa" }
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus", version = "0.8.0-rc2"}
+sc-block-builder = { version = "0.8.0-rc2", path = "../block-builder" }
 finality-grandpa = { version = "0.12.3", features = ["derive-codec"] }
 pin-project = "0.4.6"
 
 [dev-dependencies]
 finality-grandpa = { version = "0.12.3", features = ["derive-codec", "test-helpers"] }
-sc-network = { version = "0.8.0-rc1", path = "../network" }
-sc-network-test = { version = "0.8.0-rc1", path = "../network/test" }
-sp-keyring = { version = "2.0.0-rc1", path = "../../primitives/keyring" }
-substrate-test-runtime-client = { version = "2.0.0-rc1",  path = "../../test-utils/runtime/client" }
-sp-consensus-babe = { version = "0.8.0-rc1", path = "../../primitives/consensus/babe" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../primitives/state-machine" }
+sc-network = { version = "0.8.0-rc2", path = "../network" }
+sc-network-test = { version = "0.8.0-rc2", path = "../network/test" }
+sp-keyring = { version = "2.0.0-rc2", path = "../../primitives/keyring" }
+substrate-test-runtime-client = { version = "2.0.0-rc2",  path = "../../test-utils/runtime/client" }
+sp-consensus-babe = { version = "0.8.0-rc2", path = "../../primitives/consensus/babe" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../primitives/state-machine" }
 env_logger = "0.7.0"
 tokio = { version = "0.2", features = ["rt-core"] }
 tempfile = "3.1.0"
-sp-api = { version = "2.0.0-rc1", path = "../../primitives/api" }
+sp-api = { version = "2.0.0-rc2", path = "../../primitives/api" }
diff --git a/substrate/client/finality-grandpa/rpc/Cargo.toml b/substrate/client/finality-grandpa/rpc/Cargo.toml
index dbff14bd16..e1724c6c4e 100644
--- a/substrate/client/finality-grandpa/rpc/Cargo.toml
+++ b/substrate/client/finality-grandpa/rpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-finality-grandpa-rpc"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "RPC extensions for the GRANDPA finality gadget"
 repository = "https://github.com/paritytech/substrate/"
@@ -8,7 +8,7 @@ edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
 
 [dependencies]
-sc-finality-grandpa = { version = "0.8.0-rc1", path = "../" }
+sc-finality-grandpa = { version = "0.8.0-rc2", path = "../" }
 finality-grandpa = { version = "0.12.3", features = ["derive-codec"] }
 jsonrpc-core = "14.0.3"
 jsonrpc-core-client = "14.0.3"
@@ -20,4 +20,4 @@ log = "0.4.8"
 derive_more = "0.99.2"
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
diff --git a/substrate/client/informant/Cargo.toml b/substrate/client/informant/Cargo.toml
index d4b6b96a27..cd24fa6958 100644
--- a/substrate/client/informant/Cargo.toml
+++ b/substrate/client/informant/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-informant"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Substrate informant."
 edition = "2018"
@@ -17,8 +17,8 @@ futures = "0.3.4"
 log = "0.4.8"
 parity-util-mem = { version = "0.6.1", default-features = false, features = ["primitive-types"] }
 wasm-timer = "0.2"
-sc-client-api = { version = "2.0.0-rc1", path = "../api" }
-sc-network = { version = "0.8.0-rc1", path = "../network" }
-sc-service = { version = "0.8.0-rc1", default-features = false, path = "../service" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../primitives/blockchain" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
+sc-client-api = { version = "2.0.0-rc2", path = "../api" }
+sc-network = { version = "0.8.0-rc2", path = "../network" }
+sc-service = { version = "0.8.0-rc2", default-features = false, path = "../service" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../primitives/blockchain" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
diff --git a/substrate/client/keystore/Cargo.toml b/substrate/client/keystore/Cargo.toml
index 1d4312f816..f02869762d 100644
--- a/substrate/client/keystore/Cargo.toml
+++ b/substrate/client/keystore/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-keystore"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -15,8 +15,8 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 derive_more = "0.99.2"
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-application-crypto = { version = "2.0.0-rc1", path = "../../primitives/application-crypto" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-application-crypto = { version = "2.0.0-rc2", path = "../../primitives/application-crypto" }
 hex = "0.4.0"
 rand = "0.7.2"
 serde_json = "1.0.41"
diff --git a/substrate/client/network-gossip/Cargo.toml b/substrate/client/network-gossip/Cargo.toml
index a45f96e8b9..e6dc57dc9c 100644
--- a/substrate/client/network-gossip/Cargo.toml
+++ b/substrate/client/network-gossip/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 description = "Gossiping for the Substrate network protocol"
 name = "sc-network-gossip"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
@@ -19,12 +19,12 @@ futures-timer = "3.0.1"
 libp2p = { version = "0.19.1", default-features = false, features = ["websocket"] }
 log = "0.4.8"
 lru = "0.4.3"
-sc-network = { version = "0.8.0-rc1", path = "../network" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
+sc-network = { version = "0.8.0-rc2", path = "../network" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
 wasm-timer = "0.2"
 
 [dev-dependencies]
 async-std = "1.5"
 quickcheck = "0.9.0"
 rand = "0.7.2"
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../test-utils/runtime/client" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../test-utils/runtime/client" }
diff --git a/substrate/client/network/Cargo.toml b/substrate/client/network/Cargo.toml
index daa5df0e15..6c6579a858 100644
--- a/substrate/client/network/Cargo.toml
+++ b/substrate/client/network/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 description = "Substrate network protocol"
 name = "sc-network"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
@@ -26,7 +26,7 @@ derive_more = "0.99.2"
 either = "1.5.3"
 erased-serde = "0.3.9"
 fnv = "1.0.6"
-fork-tree = { version = "2.0.0-rc1", path = "../../utils/fork-tree" }
+fork-tree = { version = "2.0.0-rc2", path = "../../utils/fork-tree" }
 futures = "0.3.4"
 futures-timer = "3.0.1"
 futures_codec = "0.3.3"
@@ -39,23 +39,23 @@ lru = "0.4.0"
 nohash-hasher = "0.2.0"
 parking_lot = "0.10.0"
 pin-project = "0.4.6"
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", version = "0.8.0-rc1", path = "../../utils/prometheus" }
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", version = "0.8.0-rc2", path = "../../utils/prometheus" }
 prost = "0.6.1"
 rand = "0.7.2"
-sc-block-builder = { version = "0.8.0-rc1", path = "../block-builder" }
-sc-client-api = { version = "2.0.0-rc1", path = "../api" }
-sc-peerset = { version = "2.0.0-rc1", path = "../peerset" }
+sc-block-builder = { version = "0.8.0-rc2", path = "../block-builder" }
+sc-client-api = { version = "2.0.0-rc2", path = "../api" }
+sc-peerset = { version = "2.0.0-rc2", path = "../peerset" }
 serde = { version = "1.0.101", features = ["derive"] }
 serde_json = "1.0.41"
 slog = { version = "2.5.2", features = ["nested-values"] }
 slog_derive = "0.2.0"
 smallvec = "0.6.10"
-sp-arithmetic = { version = "2.0.0-rc1", path = "../../primitives/arithmetic" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../primitives/blockchain" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../primitives/consensus/common" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
-sp-utils = { version = "2.0.0-rc1", path = "../../primitives/utils" }
+sp-arithmetic = { version = "2.0.0-rc2", path = "../../primitives/arithmetic" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../primitives/blockchain" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../primitives/consensus/common" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
+sp-utils = { version = "2.0.0-rc2", path = "../../primitives/utils" }
 thiserror = "1"
 unsigned-varint = { version = "0.3.1", features = ["futures", "futures-codec"] }
 void = "1.0.2"
@@ -74,10 +74,10 @@ env_logger = "0.7.0"
 libp2p = { version = "0.19.1", default-features = false, features = ["secio"] }
 quickcheck = "0.9.0"
 rand = "0.7.2"
-sp-keyring = { version = "2.0.0-rc1", path = "../../primitives/keyring" }
-sp-test-primitives = { version = "2.0.0-rc1", path = "../../primitives/test-primitives" }
-substrate-test-runtime = { version = "2.0.0-rc1", path = "../../test-utils/runtime" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../test-utils/runtime/client" }
+sp-keyring = { version = "2.0.0-rc2", path = "../../primitives/keyring" }
+sp-test-primitives = { version = "2.0.0-rc2", path = "../../primitives/test-primitives" }
+substrate-test-runtime = { version = "2.0.0-rc2", path = "../../test-utils/runtime" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../test-utils/runtime/client" }
 tempfile = "3.1.0"
 
 [features]
diff --git a/substrate/client/network/test/Cargo.toml b/substrate/client/network/test/Cargo.toml
index 73a5d729d9..8695d30a68 100644
--- a/substrate/client/network/test/Cargo.toml
+++ b/substrate/client/network/test/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 description = "Integration tests for Substrate network protocol"
 name = "sc-network-test"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
@@ -13,23 +13,23 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sc-network = { version = "0.8.0-rc1", path = "../" }
+sc-network = { version = "0.8.0-rc2", path = "../" }
 log = "0.4.8"
 parking_lot = "0.10.0"
 futures = "0.3.4"
 futures-timer = "3.0.1"
 rand = "0.7.2"
 libp2p = { version = "0.19.1", default-features = false, features = ["libp2p-websocket"] }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
-sc-consensus = { version = "0.8.0-rc1", path = "../../../client/consensus/common" }
-sc-client-api = { version = "2.0.0-rc1", path = "../../api" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sc-block-builder = { version = "0.8.0-rc1", path = "../../block-builder" }
-sp-consensus-babe = { version = "0.8.0-rc1", path = "../../../primitives/consensus/babe" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
+sc-consensus = { version = "0.8.0-rc2", path = "../../../client/consensus/common" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../api" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sc-block-builder = { version = "0.8.0-rc2", path = "../../block-builder" }
+sp-consensus-babe = { version = "0.8.0-rc2", path = "../../../primitives/consensus/babe" }
 env_logger = "0.7.0"
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../../test-utils/runtime/client" }
-substrate-test-runtime = { version = "2.0.0-rc1", path = "../../../test-utils/runtime" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../../test-utils/runtime/client" }
+substrate-test-runtime = { version = "2.0.0-rc2", path = "../../../test-utils/runtime" }
 tempfile = "3.1.0"
-sc-service = { version = "0.8.0-rc1", default-features = false, features = ["test-helpers"],  path = "../../service" }
+sc-service = { version = "0.8.0-rc2", default-features = false, features = ["test-helpers"],  path = "../../service" }
diff --git a/substrate/client/offchain/Cargo.toml b/substrate/client/offchain/Cargo.toml
index 93d2ea5603..99f4ad66f3 100644
--- a/substrate/client/offchain/Cargo.toml
+++ b/substrate/client/offchain/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 description = "Substrate offchain workers"
 name = "sc-offchain"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
@@ -13,23 +13,23 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 bytes = "0.5"
-sc-client-api = { version = "2.0.0-rc1", path = "../api" }
-sp-api = { version = "2.0.0-rc1", path = "../../primitives/api" }
+sc-client-api = { version = "2.0.0-rc2", path = "../api" }
+sp-api = { version = "2.0.0-rc2", path = "../../primitives/api" }
 fnv = "1.0.6"
 futures = "0.3.4"
 futures-timer = "3.0.1"
 log = "0.4.8"
 threadpool = "1.7"
 num_cpus = "1.10"
-sp-offchain = { version = "2.0.0-rc1", path = "../../primitives/offchain" }
+sp-offchain = { version = "2.0.0-rc2", path = "../../primitives/offchain" }
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
 parking_lot = "0.10.0"
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
 rand = "0.7.2"
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
-sp-utils = { version = "2.0.0-rc1", path = "../../primitives/utils" }
-sc-network = { version = "0.8.0-rc1", path = "../network" }
-sc-keystore = { version = "2.0.0-rc1", path = "../keystore" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
+sp-utils = { version = "2.0.0-rc2", path = "../../primitives/utils" }
+sc-network = { version = "0.8.0-rc2", path = "../network" }
+sc-keystore = { version = "2.0.0-rc2", path = "../keystore" }
 
 [target.'cfg(not(target_os = "unknown"))'.dependencies]
 hyper = "0.13.2"
@@ -38,10 +38,10 @@ hyper-rustls = "0.20"
 [dev-dependencies]
 env_logger = "0.7.0"
 fdlimit = "0.1.4"
-sc-client-db = { version = "0.8.0-rc1", default-features = true, path = "../db/" }
-sc-transaction-pool = { version = "2.0.0-rc1", path = "../../client/transaction-pool" }
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../primitives/transaction-pool" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../test-utils/runtime/client" }
+sc-client-db = { version = "0.8.0-rc2", default-features = true, path = "../db/" }
+sc-transaction-pool = { version = "2.0.0-rc2", path = "../../client/transaction-pool" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../primitives/transaction-pool" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../test-utils/runtime/client" }
 tokio = "0.2"
 
 [features]
diff --git a/substrate/client/peerset/Cargo.toml b/substrate/client/peerset/Cargo.toml
index 668d40cd60..60ec0a39ef 100644
--- a/substrate/client/peerset/Cargo.toml
+++ b/substrate/client/peerset/Cargo.toml
@@ -3,7 +3,7 @@ description = "Connectivity manager based on reputation"
 homepage = "http://parity.io"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
 name = "sc-peerset"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 repository = "https://github.com/paritytech/substrate/"
@@ -16,7 +16,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 futures = "0.3.4"
 libp2p = { version = "0.19.1", default-features = false }
-sp-utils = { version = "2.0.0-rc1", path = "../../primitives/utils"}
+sp-utils = { version = "2.0.0-rc2", path = "../../primitives/utils"}
 log = "0.4.8"
 serde_json = "1.0.41"
 wasm-timer = "0.2"
diff --git a/substrate/client/proposer-metrics/Cargo.toml b/substrate/client/proposer-metrics/Cargo.toml
index 406f98fa71..4e2a807b5d 100644
--- a/substrate/client/proposer-metrics/Cargo.toml
+++ b/substrate/client/proposer-metrics/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-proposer-metrics"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -13,4 +13,4 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 log = "0.4.8"
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus", version = "0.8.0-rc1"}
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus", version = "0.8.0-rc2"}
diff --git a/substrate/client/rpc-api/Cargo.toml b/substrate/client/rpc-api/Cargo.toml
index e993291bad..1075c3a11c 100644
--- a/substrate/client/rpc-api/Cargo.toml
+++ b/substrate/client/rpc-api/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-rpc-api"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -21,11 +21,11 @@ jsonrpc-derive = "14.0.3"
 jsonrpc-pubsub = "14.0.3"
 log = "0.4.8"
 parking_lot = "0.10.0"
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-version = { version = "2.0.0-rc1", path = "../../primitives/version" }
-sp-runtime = { path = "../../primitives/runtime" , version = "2.0.0-rc1"}
-sp-chain-spec = { path = "../../primitives/chain-spec" , version = "2.0.0-rc1"}
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-version = { version = "2.0.0-rc2", path = "../../primitives/version" }
+sp-runtime = { path = "../../primitives/runtime" , version = "2.0.0-rc2"}
+sp-chain-spec = { path = "../../primitives/chain-spec" , version = "2.0.0-rc2"}
 serde = { version = "1.0.101", features = ["derive"] }
 serde_json = "1.0.41"
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../primitives/transaction-pool" }
-sp-rpc = { version = "2.0.0-rc1", path = "../../primitives/rpc" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../primitives/transaction-pool" }
+sp-rpc = { version = "2.0.0-rc2", path = "../../primitives/rpc" }
diff --git a/substrate/client/rpc-servers/Cargo.toml b/substrate/client/rpc-servers/Cargo.toml
index 65f4bb1a1e..401f5f4882 100644
--- a/substrate/client/rpc-servers/Cargo.toml
+++ b/substrate/client/rpc-servers/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-rpc-server"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -17,7 +17,7 @@ pubsub = { package = "jsonrpc-pubsub", version = "14.0.3" }
 log = "0.4.8"
 serde = "1.0.101"
 serde_json = "1.0.41"
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
 
 [target.'cfg(not(target_os = "unknown"))'.dependencies]
 http = { package = "jsonrpc-http-server", version = "14.0.3" }
diff --git a/substrate/client/rpc/Cargo.toml b/substrate/client/rpc/Cargo.toml
index ed67592741..62f9319575 100644
--- a/substrate/client/rpc/Cargo.toml
+++ b/substrate/client/rpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-rpc"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -12,38 +12,38 @@ description = "Substrate Client RPC"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sc-rpc-api = { version = "0.8.0-rc1", path = "../rpc-api" }
-sc-client-api = { version = "2.0.0-rc1", path = "../api" }
-sp-api = { version = "2.0.0-rc1", path = "../../primitives/api" }
+sc-rpc-api = { version = "0.8.0-rc2", path = "../rpc-api" }
+sc-client-api = { version = "2.0.0-rc2", path = "../api" }
+sp-api = { version = "2.0.0-rc2", path = "../../primitives/api" }
 codec = { package = "parity-scale-codec", version = "1.3.0" }
 futures = { version = "0.3.1", features = ["compat"] }
 jsonrpc-pubsub = "14.0.3"
 log = "0.4.8"
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
 rpc = { package = "jsonrpc-core", version = "14.0.3" }
-sp-version = { version = "2.0.0-rc1", path = "../../primitives/version" }
+sp-version = { version = "2.0.0-rc2", path = "../../primitives/version" }
 serde_json = "1.0.41"
-sp-session = { version = "2.0.0-rc1", path = "../../primitives/session" }
-sp-offchain = { version = "2.0.0-rc1", path = "../../primitives/offchain" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
-sp-utils = { version = "2.0.0-rc1", path = "../../primitives/utils" }
-sp-rpc = { version = "2.0.0-rc1", path = "../../primitives/rpc" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../primitives/state-machine" }
-sp-chain-spec = { version = "2.0.0-rc1", path = "../../primitives/chain-spec" }
-sc-executor = { version = "0.8.0-rc1", path = "../executor" }
-sc-block-builder = { version = "0.8.0-rc1", path = "../../client/block-builder" }
-sc-keystore = { version = "2.0.0-rc1", path = "../keystore" }
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../primitives/transaction-pool" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../primitives/blockchain" }
+sp-session = { version = "2.0.0-rc2", path = "../../primitives/session" }
+sp-offchain = { version = "2.0.0-rc2", path = "../../primitives/offchain" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
+sp-utils = { version = "2.0.0-rc2", path = "../../primitives/utils" }
+sp-rpc = { version = "2.0.0-rc2", path = "../../primitives/rpc" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../primitives/state-machine" }
+sp-chain-spec = { version = "2.0.0-rc2", path = "../../primitives/chain-spec" }
+sc-executor = { version = "0.8.0-rc2", path = "../executor" }
+sc-block-builder = { version = "0.8.0-rc2", path = "../../client/block-builder" }
+sc-keystore = { version = "2.0.0-rc2", path = "../keystore" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../primitives/transaction-pool" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../primitives/blockchain" }
 hash-db = { version = "0.15.2", default-features = false }
 parking_lot = "0.10.0"
 
 [dev-dependencies]
 assert_matches = "1.3.0"
 futures01 = { package = "futures", version = "0.1.29" }
-sc-network = { version = "0.8.0-rc1", path = "../network" }
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../test-utils/runtime/client" }
+sc-network = { version = "0.8.0-rc2", path = "../network" }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../test-utils/runtime/client" }
 tokio = "0.1.22"
-sc-transaction-pool = { version = "2.0.0-rc1", path = "../transaction-pool" }
+sc-transaction-pool = { version = "2.0.0-rc2", path = "../transaction-pool" }
 lazy_static = "1.4.0"
diff --git a/substrate/client/service/Cargo.toml b/substrate/client/service/Cargo.toml
index 699da80c46..fc5991bc3f 100644
--- a/substrate/client/service/Cargo.toml
+++ b/substrate/client/service/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-service"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -39,38 +39,38 @@ hash-db = "0.15.2"
 serde = "1.0.101"
 serde_json = "1.0.41"
 sysinfo = "0.13.3"
-sc-keystore = { version = "2.0.0-rc1", path = "../keystore" }
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
-sp-trie = { version = "2.0.0-rc1", path = "../../primitives/trie" }
-sp-externalities = { version = "0.8.0-rc1", path = "../../primitives/externalities" }
-sp-utils = { version = "2.0.0-rc1", path = "../../primitives/utils" }
-sp-version = { version = "2.0.0-rc1", path = "../../primitives/version" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../primitives/blockchain" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-session = { version = "2.0.0-rc1", path = "../../primitives/session" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../primitives/state-machine" }
-sp-application-crypto = { version = "2.0.0-rc1", path = "../../primitives/application-crypto" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../primitives/consensus/common" }
-sc-network = { version = "0.8.0-rc1", path = "../network" }
-sc-chain-spec = { version = "2.0.0-rc1", path = "../chain-spec" }
-sc-client-api = { version = "2.0.0-rc1", path = "../api" }
-sp-api = { version = "2.0.0-rc1", path = "../../primitives/api" }
-sc-client-db = { version = "0.8.0-rc1", default-features = false, path = "../db" }
+sc-keystore = { version = "2.0.0-rc2", path = "../keystore" }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
+sp-trie = { version = "2.0.0-rc2", path = "../../primitives/trie" }
+sp-externalities = { version = "0.8.0-rc2", path = "../../primitives/externalities" }
+sp-utils = { version = "2.0.0-rc2", path = "../../primitives/utils" }
+sp-version = { version = "2.0.0-rc2", path = "../../primitives/version" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../primitives/blockchain" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-session = { version = "2.0.0-rc2", path = "../../primitives/session" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../primitives/state-machine" }
+sp-application-crypto = { version = "2.0.0-rc2", path = "../../primitives/application-crypto" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../primitives/consensus/common" }
+sc-network = { version = "0.8.0-rc2", path = "../network" }
+sc-chain-spec = { version = "2.0.0-rc2", path = "../chain-spec" }
+sc-client-api = { version = "2.0.0-rc2", path = "../api" }
+sp-api = { version = "2.0.0-rc2", path = "../../primitives/api" }
+sc-client-db = { version = "0.8.0-rc2", default-features = false, path = "../db" }
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-sc-executor = { version = "0.8.0-rc1", path = "../executor" }
-sc-transaction-pool = { version = "2.0.0-rc1", path = "../transaction-pool" }
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../primitives/transaction-pool" }
-sc-rpc-server = { version = "2.0.0-rc1", path = "../rpc-servers" }
-sc-rpc = { version = "2.0.0-rc1", path = "../rpc" }
-sc-block-builder = { version = "0.8.0-rc1", path = "../block-builder" }
-sp-block-builder = { version = "2.0.0-rc1", path = "../../primitives/block-builder" }
+sc-executor = { version = "0.8.0-rc2", path = "../executor" }
+sc-transaction-pool = { version = "2.0.0-rc2", path = "../transaction-pool" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../primitives/transaction-pool" }
+sc-rpc-server = { version = "2.0.0-rc2", path = "../rpc-servers" }
+sc-rpc = { version = "2.0.0-rc2", path = "../rpc" }
+sc-block-builder = { version = "0.8.0-rc2", path = "../block-builder" }
+sp-block-builder = { version = "2.0.0-rc2", path = "../../primitives/block-builder" }
 
-sc-telemetry = { version = "2.0.0-rc1", path = "../telemetry" }
-sc-offchain = { version = "2.0.0-rc1", path = "../offchain" }
+sc-telemetry = { version = "2.0.0-rc2", path = "../telemetry" }
+sc-offchain = { version = "2.0.0-rc2", path = "../offchain" }
 parity-multiaddr = { package = "parity-multiaddr", version = "0.7.3" }
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus" , version = "0.8.0-rc1"}
-sc-tracing = { version = "2.0.0-rc1", path = "../tracing" }
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus" , version = "0.8.0-rc2"}
+sc-tracing = { version = "2.0.0-rc2", path = "../tracing" }
 tracing = "0.1.10"
 parity-util-mem = { version = "0.6.1", default-features = false, features = ["primitive-types"] }
 
@@ -83,7 +83,7 @@ procfs = '0.7.8'
 
 
 [dev-dependencies]
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../test-utils/runtime/client" }
-sp-consensus-babe = { version = "0.8.0-rc1", path = "../../primitives/consensus/babe" }
-grandpa = { version = "0.8.0-rc1", package = "sc-finality-grandpa", path = "../finality-grandpa" }
-grandpa-primitives = { version = "2.0.0-rc1", package = "sp-finality-grandpa", path = "../../primitives/finality-grandpa" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../test-utils/runtime/client" }
+sp-consensus-babe = { version = "0.8.0-rc2", path = "../../primitives/consensus/babe" }
+grandpa = { version = "0.8.0-rc2", package = "sc-finality-grandpa", path = "../finality-grandpa" }
+grandpa-primitives = { version = "2.0.0-rc2", package = "sp-finality-grandpa", path = "../../primitives/finality-grandpa" }
diff --git a/substrate/client/service/test/Cargo.toml b/substrate/client/service/test/Cargo.toml
index d846638dca..4b55b19269 100644
--- a/substrate/client/service/test/Cargo.toml
+++ b/substrate/client/service/test/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-service-test"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -20,24 +20,24 @@ log = "0.4.8"
 env_logger = "0.7.0"
 fdlimit = "0.1.4"
 parking_lot = "0.10.0"
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-sp-api = { version = "2.0.0-rc1", path = "../../../primitives/api" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../../primitives/state-machine" }
-sp-externalities = { version = "0.8.0-rc1", path = "../../../primitives/externalities" }
-sp-trie = { version = "2.0.0-rc1", path = "../../../primitives/trie" }
-sp-storage = { version = "2.0.0-rc1", path = "../../../primitives/storage" }
-sc-client-db = { version = "0.8.0-rc1", default-features = false, path = "../../db" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+sp-api = { version = "2.0.0-rc2", path = "../../../primitives/api" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../../primitives/state-machine" }
+sp-externalities = { version = "0.8.0-rc2", path = "../../../primitives/externalities" }
+sp-trie = { version = "2.0.0-rc2", path = "../../../primitives/trie" }
+sp-storage = { version = "2.0.0-rc2", path = "../../../primitives/storage" }
+sc-client-db = { version = "0.8.0-rc2", default-features = false, path = "../../db" }
 futures = { version = "0.3.1", features = ["compat"] }
-sc-service = { version = "0.8.0-rc1", default-features = false, features = ["test-helpers"], path = "../../service" }
-sc-network = { version = "0.8.0-rc1", path = "../../network" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../../primitives/transaction-pool" }
-substrate-test-runtime = { version = "2.0.0-rc1", path = "../../../test-utils/runtime" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../../test-utils/runtime/client" }
-sc-client-api = { version = "2.0.0-rc1", path = "../../api" }
-sc-block-builder = { version = "0.8.0-rc1", path = "../../block-builder" }
-sc-executor = { version = "0.8.0-rc1", path = "../../executor" }
-sp-panic-handler = { version = "2.0.0-rc1", path = "../../../primitives/panic-handler" }
+sc-service = { version = "0.8.0-rc2", default-features = false, features = ["test-helpers"], path = "../../service" }
+sc-network = { version = "0.8.0-rc2", path = "../../network" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../../primitives/transaction-pool" }
+substrate-test-runtime = { version = "2.0.0-rc2", path = "../../../test-utils/runtime" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../../test-utils/runtime/client" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../api" }
+sc-block-builder = { version = "0.8.0-rc2", path = "../../block-builder" }
+sc-executor = { version = "0.8.0-rc2", path = "../../executor" }
+sp-panic-handler = { version = "2.0.0-rc2", path = "../../../primitives/panic-handler" }
 parity-scale-codec = "1.3.0"
diff --git a/substrate/client/state-db/Cargo.toml b/substrate/client/state-db/Cargo.toml
index ddcaa1f139..e1b784c222 100644
--- a/substrate/client/state-db/Cargo.toml
+++ b/substrate/client/state-db/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-state-db"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -14,8 +14,8 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 parking_lot = "0.10.0"
 log = "0.4.8"
-sc-client-api = { version = "2.0.0-rc1", path = "../api" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
+sc-client-api = { version = "2.0.0-rc2", path = "../api" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
 parity-util-mem = { version = "0.6.1", default-features = false, features = ["primitive-types"] }
 parity-util-mem-derive = "0.1.0"
diff --git a/substrate/client/telemetry/Cargo.toml b/substrate/client/telemetry/Cargo.toml
index 0f78e5d5bf..e88a9dc779 100644
--- a/substrate/client/telemetry/Cargo.toml
+++ b/substrate/client/telemetry/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-telemetry"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Telemetry utils"
 edition = "2018"
diff --git a/substrate/client/tracing/Cargo.toml b/substrate/client/tracing/Cargo.toml
index 1a59106bbe..dfcedddbd1 100644
--- a/substrate/client/tracing/Cargo.toml
+++ b/substrate/client/tracing/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-tracing"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
@@ -20,7 +20,7 @@ serde_json = "1.0.41"
 slog = { version = "2.5.2", features = ["nested-values"] }
 tracing-core = "0.1.7"
 
-sc-telemetry = { version = "2.0.0-rc1", path = "../telemetry" }
+sc-telemetry = { version = "2.0.0-rc2", path = "../telemetry" }
 
 [dev-dependencies]
 tracing = "0.1.10"
diff --git a/substrate/client/transaction-pool/Cargo.toml b/substrate/client/transaction-pool/Cargo.toml
index de3d34f1d4..0b394da357 100644
--- a/substrate/client/transaction-pool/Cargo.toml
+++ b/substrate/client/transaction-pool/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-transaction-pool"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -20,21 +20,21 @@ intervalier = "0.4.0"
 log = "0.4.8"
 parity-util-mem = { version = "0.6.1", default-features = false, features = ["primitive-types"] }
 parking_lot = "0.10.0"
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus", version = "0.8.0-rc1"}
-sc-client-api = { version = "2.0.0-rc1", path = "../api" }
-sc-transaction-graph = { version = "2.0.0-rc1", path = "./graph" }
-sp-api = { version = "2.0.0-rc1", path = "../../primitives/api" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
-sp-tracing = { version = "2.0.0-rc1", path = "../../primitives/tracing" }
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../primitives/transaction-pool" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../primitives/blockchain" }
-sp-utils = { version = "2.0.0-rc1", path = "../../primitives/utils" }
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../utils/prometheus", version = "0.8.0-rc2"}
+sc-client-api = { version = "2.0.0-rc2", path = "../api" }
+sc-transaction-graph = { version = "2.0.0-rc2", path = "./graph" }
+sp-api = { version = "2.0.0-rc2", path = "../../primitives/api" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
+sp-tracing = { version = "2.0.0-rc2", path = "../../primitives/tracing" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../primitives/transaction-pool" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../primitives/blockchain" }
+sp-utils = { version = "2.0.0-rc2", path = "../../primitives/utils" }
 wasm-timer = "0.2"
 
 [dev-dependencies]
 assert_matches = "1.3.0"
 hex = "0.4"
-sp-keyring = { version = "2.0.0-rc1", path = "../../primitives/keyring" }
-substrate-test-runtime-transaction-pool = { version = "2.0.0-rc1", path = "../../test-utils/runtime/transaction-pool" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../test-utils/runtime/client" }
+sp-keyring = { version = "2.0.0-rc2", path = "../../primitives/keyring" }
+substrate-test-runtime-transaction-pool = { version = "2.0.0-rc2", path = "../../test-utils/runtime/transaction-pool" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../test-utils/runtime/client" }
diff --git a/substrate/client/transaction-pool/graph/Cargo.toml b/substrate/client/transaction-pool/graph/Cargo.toml
index d7ad5db6a5..2290a29c8f 100644
--- a/substrate/client/transaction-pool/graph/Cargo.toml
+++ b/substrate/client/transaction-pool/graph/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-transaction-graph"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
@@ -18,18 +18,18 @@ log = "0.4.8"
 parking_lot = "0.10.0"
 serde = { version = "1.0.101", features = ["derive"] }
 wasm-timer = "0.2"
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-sp-utils = { version = "2.0.0-rc1", path = "../../../primitives/utils" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../../primitives/transaction-pool" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+sp-utils = { version = "2.0.0-rc2", path = "../../../primitives/utils" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../../primitives/transaction-pool" }
 parity-util-mem = { version = "0.6.1", default-features = false, features = ["primitive-types"] }
 linked-hash-map = "0.5.2"
 
 [dev-dependencies]
 assert_matches = "1.3.0"
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-substrate-test-runtime = { version = "2.0.0-rc1", path = "../../../test-utils/runtime" }
+substrate-test-runtime = { version = "2.0.0-rc2", path = "../../../test-utils/runtime" }
 criterion = "0.3"
 
 [[bench]]
diff --git a/substrate/docs/CHANGELOG.md b/substrate/docs/CHANGELOG.md
index 76fb1ac579..4c4cf46e5c 100644
--- a/substrate/docs/CHANGELOG.md
+++ b/substrate/docs/CHANGELOG.md
@@ -6,6 +6,9 @@ The format is based on [Keep a Changelog].
 
 ## Unreleased
 
+## 2.0.0-rc1 -> 2.0.0-rc2
+
+
 
 ## 2.0.0-alpha.8 -> 2.0.0-rc1
 
diff --git a/substrate/frame/assets/Cargo.toml b/substrate/frame/assets/Cargo.toml
index 9b34e968ee..f40eab532e 100644
--- a/substrate/frame/assets/Cargo.toml
+++ b/substrate/frame/assets/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-assets"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -15,16 +15,16 @@ targets = ["x86_64-unknown-linux-gnu"]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
 # Needed for various traits. In our case, `OnFinalize`.
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
 # Needed for type-safe access to storage DB.
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
 # `system` module provides us with all sorts of useful stuff and macros depend on it being around.
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-std = { version = "2.0.0-rc1", path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-std = { version = "2.0.0-rc2", path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/aura/Cargo.toml b/substrate/frame/aura/Cargo.toml
index 7221d2c2ce..bb964bd415 100644
--- a/substrate/frame/aura/Cargo.toml
+++ b/substrate/frame/aura/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-aura"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,23 +12,23 @@ description = "FRAME AURA consensus pallet"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/application-crypto" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/application-crypto" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/inherents" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/inherents" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
 serde = { version = "1.0.101", optional = true }
-pallet-session = { version = "2.0.0-rc1", default-features = false, path = "../session" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-sp-consensus-aura = { version = "0.8.0-rc1", path = "../../primitives/consensus/aura", default-features = false }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-sp-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/timestamp" }
-pallet-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../timestamp" }
+pallet-session = { version = "2.0.0-rc2", default-features = false, path = "../session" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+sp-consensus-aura = { version = "0.8.0-rc2", path = "../../primitives/consensus/aura", default-features = false }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+sp-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/timestamp" }
+pallet-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../timestamp" }
 
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-io ={ version = "2.0.0-rc1", path = "../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-io ={ version = "2.0.0-rc2", path = "../../primitives/io" }
 lazy_static = "1.4.0"
 parking_lot = "0.10.0"
 
diff --git a/substrate/frame/authority-discovery/Cargo.toml b/substrate/frame/authority-discovery/Cargo.toml
index 99a17ec910..3aa36b5cac 100644
--- a/substrate/frame/authority-discovery/Cargo.toml
+++ b/substrate/frame/authority-discovery/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-authority-discovery"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,20 +12,20 @@ description = "FRAME pallet for authority discovery"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-authority-discovery = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/authority-discovery" }
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/application-crypto" }
+sp-authority-discovery = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/authority-discovery" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/application-crypto" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
 serde = { version = "1.0.101", optional = true }
-pallet-session = { version = "2.0.0-rc1", features = ["historical" ], path = "../session", default-features = false }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+pallet-session = { version = "2.0.0-rc2", features = ["historical" ], path = "../session", default-features = false }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io" }
-sp-staking = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/staking" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io" }
+sp-staking = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/staking" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/authorship/Cargo.toml b/substrate/frame/authorship/Cargo.toml
index 32faaa23b1..7bde40887a 100644
--- a/substrate/frame/authorship/Cargo.toml
+++ b/substrate/frame/authorship/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-authorship"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 description = "Block and Uncle Author tracking for the FRAME"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
@@ -13,17 +13,17 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/inherents" }
-sp-authorship = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/authorship" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/inherents" }
+sp-authorship = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/authorship" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 impl-trait-for-tuples = "0.1.3"
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-io ={ version = "2.0.0-rc1", path = "../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-io ={ version = "2.0.0-rc2", path = "../../primitives/io" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/babe/Cargo.toml b/substrate/frame/babe/Cargo.toml
index 6ad153ed5a..060b6ad1ec 100644
--- a/substrate/frame/babe/Cargo.toml
+++ b/substrate/frame/babe/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-babe"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,22 +14,22 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.101", optional = true }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/inherents" }
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/application-crypto" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-staking = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/staking" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-pallet-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../timestamp" }
-sp-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/timestamp" }
-pallet-session = { version = "2.0.0-rc1", default-features = false, path = "../session" }
-sp-consensus-babe = { version = "0.8.0-rc1", default-features = false, path = "../../primitives/consensus/babe" }
-sp-consensus-vrf = { version = "0.8.0-rc1", default-features = false, path = "../../primitives/consensus/vrf" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/inherents" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/application-crypto" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-staking = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/staking" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+pallet-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../timestamp" }
+sp-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/timestamp" }
+pallet-session = { version = "2.0.0-rc2", default-features = false, path = "../session" }
+sp-consensus-babe = { version = "0.8.0-rc2", default-features = false, path = "../../primitives/consensus/babe" }
+sp-consensus-vrf = { version = "0.8.0-rc2", default-features = false, path = "../../primitives/consensus/vrf" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/balances/Cargo.toml b/substrate/frame/balances/Cargo.toml
index 9fc875f907..ae69fb17c2 100644
--- a/substrate/frame/balances/Cargo.toml
+++ b/substrate/frame/balances/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-balances"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,16 +14,16 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-pallet-transaction-payment = { version = "2.0.0-rc1", path = "../transaction-payment" }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+pallet-transaction-payment = { version = "2.0.0-rc2", path = "../transaction-payment" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/benchmark/Cargo.toml b/substrate/frame/benchmark/Cargo.toml
index 2d5f32d58e..6ef770b6c1 100644
--- a/substrate/frame/benchmark/Cargo.toml
+++ b/substrate/frame/benchmark/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-benchmark"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,12 +14,12 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.0.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/benchmarking/Cargo.toml b/substrate/frame/benchmarking/Cargo.toml
index 078283dfac..24db2adc48 100644
--- a/substrate/frame/benchmarking/Cargo.toml
+++ b/substrate/frame/benchmarking/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "frame-benchmarking"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -15,13 +15,13 @@ targets = ["x86_64-unknown-linux-gnu"]
 linregress = "0.1"
 paste = "0.1"
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-api = { version = "2.0.0-rc1", path = "../../primitives/api", default-features = false }
-sp-runtime-interface = { version = "2.0.0-rc1", path = "../../primitives/runtime-interface", default-features = false }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime", default-features = false }
-sp-std = { version = "2.0.0-rc1", path = "../../primitives/std", default-features = false }
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io", default-features = false }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-api = { version = "2.0.0-rc2", path = "../../primitives/api", default-features = false }
+sp-runtime-interface = { version = "2.0.0-rc2", path = "../../primitives/runtime-interface", default-features = false }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime", default-features = false }
+sp-std = { version = "2.0.0-rc2", path = "../../primitives/std", default-features = false }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io", default-features = false }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [features]
 default = [ "std" ]
diff --git a/substrate/frame/collective/Cargo.toml b/substrate/frame/collective/Cargo.toml
index 5a44cd8c79..d62b5ee580 100644
--- a/substrate/frame/collective/Cargo.toml
+++ b/substrate/frame/collective/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-collective"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,17 +14,17 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
 hex-literal = "0.2.1"
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/contracts/Cargo.toml b/substrate/frame/contracts/Cargo.toml
index b0f3760a3d..656836df37 100644
--- a/substrate/frame/contracts/Cargo.toml
+++ b/substrate/frame/contracts/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-contracts"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -17,23 +17,23 @@ pwasm-utils = { version = "0.12.0", default-features = false }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 parity-wasm = { version = "0.41.0", default-features = false }
 wasmi-validation = { version = "0.3.0", default-features = false }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-sandbox = { version = "0.8.0-rc1", default-features = false, path = "../../primitives/sandbox" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-pallet-contracts-primitives = { version = "2.0.0-rc1", default-features = false, path = "common" }
-pallet-transaction-payment = { version = "2.0.0-rc1", default-features = false, path = "../transaction-payment" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-sandbox = { version = "0.8.0-rc2", default-features = false, path = "../../primitives/sandbox" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+pallet-contracts-primitives = { version = "2.0.0-rc2", default-features = false, path = "common" }
+pallet-transaction-payment = { version = "2.0.0-rc2", default-features = false, path = "../transaction-payment" }
 
 [dev-dependencies]
 wabt = "0.9.2"
 assert_matches = "1.3.0"
 hex-literal = "0.2.1"
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
-pallet-timestamp = { version = "2.0.0-rc1", path = "../timestamp" }
-pallet-randomness-collective-flip = { version = "2.0.0-rc1", path = "../randomness-collective-flip" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
+pallet-timestamp = { version = "2.0.0-rc2", path = "../timestamp" }
+pallet-randomness-collective-flip = { version = "2.0.0-rc2", path = "../randomness-collective-flip" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/contracts/common/Cargo.toml b/substrate/frame/contracts/common/Cargo.toml
index 00fa3917bc..c358a87734 100644
--- a/substrate/frame/contracts/common/Cargo.toml
+++ b/substrate/frame/contracts/common/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-contracts-primitives"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,8 +14,8 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 # This crate should not rely on any of the frame primitives.
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/runtime" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/contracts/rpc/Cargo.toml b/substrate/frame/contracts/rpc/Cargo.toml
index 4bc3c84cb8..8ed233ed79 100644
--- a/substrate/frame/contracts/rpc/Cargo.toml
+++ b/substrate/frame/contracts/rpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-contracts-rpc"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -16,14 +16,14 @@ codec = { package = "parity-scale-codec", version = "1.3.0" }
 jsonrpc-core = "14.0.3"
 jsonrpc-core-client = "14.0.5"
 jsonrpc-derive = "14.0.3"
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-rpc = { version = "2.0.0-rc1", path = "../../../primitives/rpc" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-rpc = { version = "2.0.0-rc2", path = "../../../primitives/rpc" }
 serde = { version = "1.0.101", features = ["derive"] }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-api = { version = "2.0.0-rc1", path = "../../../primitives/api" }
-pallet-contracts-primitives = { version = "2.0.0-rc1", path = "../common" }
-pallet-contracts-rpc-runtime-api = { version = "0.8.0-rc1", path = "./runtime-api" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-api = { version = "2.0.0-rc2", path = "../../../primitives/api" }
+pallet-contracts-primitives = { version = "2.0.0-rc2", path = "../common" }
+pallet-contracts-rpc-runtime-api = { version = "0.8.0-rc2", path = "./runtime-api" }
 
 [dev-dependencies]
 serde_json = "1.0.41"
diff --git a/substrate/frame/contracts/rpc/runtime-api/Cargo.toml b/substrate/frame/contracts/rpc/runtime-api/Cargo.toml
index 93b945c053..b998befcc8 100644
--- a/substrate/frame/contracts/rpc/runtime-api/Cargo.toml
+++ b/substrate/frame/contracts/rpc/runtime-api/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-contracts-rpc-runtime-api"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,11 +12,11 @@ description = "Runtime API definition required by Contracts RPC extensions."
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../../../../primitives/api" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../../../../primitives/api" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../../../primitives/runtime" }
-pallet-contracts-primitives = { version = "2.0.0-rc1", default-features = false, path = "../../common" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../../../primitives/runtime" }
+pallet-contracts-primitives = { version = "2.0.0-rc2", default-features = false, path = "../../common" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/democracy/Cargo.toml b/substrate/frame/democracy/Cargo.toml
index 040571c5b3..433c37e4d8 100644
--- a/substrate/frame/democracy/Cargo.toml
+++ b/substrate/frame/democracy/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-democracy"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,19 +14,19 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
-pallet-scheduler = { version = "2.0.0-rc1", path = "../scheduler" }
-sp-storage = { version = "2.0.0-rc1", path = "../../primitives/storage" }
-substrate-test-utils = { version = "2.0.0-rc1", path = "../../test-utils" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
+pallet-scheduler = { version = "2.0.0-rc2", path = "../scheduler" }
+sp-storage = { version = "2.0.0-rc2", path = "../../primitives/storage" }
+substrate-test-utils = { version = "2.0.0-rc2", path = "../../test-utils" }
 hex-literal = "0.2.1"
 
 [features]
diff --git a/substrate/frame/elections-phragmen/Cargo.toml b/substrate/frame/elections-phragmen/Cargo.toml
index 3a46b710b6..bea1e0dfc4 100644
--- a/substrate/frame/elections-phragmen/Cargo.toml
+++ b/substrate/frame/elections-phragmen/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-elections-phragmen"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,19 +14,19 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.101", optional = true }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-phragmen = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/phragmen" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-phragmen = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/phragmen" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
 
 [dev-dependencies]
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io" }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io" }
 hex-literal = "0.2.1"
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-substrate-test-utils = { version = "2.0.0-rc1", path = "../../test-utils" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+substrate-test-utils = { version = "2.0.0-rc2", path = "../../test-utils" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/elections/Cargo.toml b/substrate/frame/elections/Cargo.toml
index af5bc6d558..bd0dc2a1dd 100644
--- a/substrate/frame/elections/Cargo.toml
+++ b/substrate/frame/elections/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-elections"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,16 +14,16 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
 hex-literal = "0.2.1"
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/evm/Cargo.toml b/substrate/frame/evm/Cargo.toml
index 6d14dd1d95..03b213605d 100644
--- a/substrate/frame/evm/Cargo.toml
+++ b/substrate/frame/evm/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-evm"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,14 +14,14 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-pallet-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../timestamp" }
-pallet-balances = { version = "2.0.0-rc1", default-features = false, path = "../balances" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+pallet-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../timestamp" }
+pallet-balances = { version = "2.0.0-rc2", default-features = false, path = "../balances" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
 primitive-types = { version = "0.7.0", default-features = false, features = ["rlp"] }
 rlp = { version = "0.4", default-features = false }
 evm = { version = "0.16", default-features = false }
diff --git a/substrate/frame/example-offchain-worker/Cargo.toml b/substrate/frame/example-offchain-worker/Cargo.toml
index d6ff25c841..0f57832a53 100644
--- a/substrate/frame/example-offchain-worker/Cargo.toml
+++ b/substrate/frame/example-offchain-worker/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-example-offchain-worker"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Unlicense"
@@ -13,13 +13,13 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 serde = { version = "1.0.101", optional = true }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
 lite-json = { version = "0.1", default-features = false }
 
 [features]
diff --git a/substrate/frame/example/Cargo.toml b/substrate/frame/example/Cargo.toml
index caeb34f532..f150a6fa2f 100644
--- a/substrate/frame/example/Cargo.toml
+++ b/substrate/frame/example/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-example"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Unlicense"
@@ -14,17 +14,17 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-pallet-balances = { version = "2.0.0-rc1", default-features = false, path = "../balances" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+pallet-balances = { version = "2.0.0-rc2", default-features = false, path = "../balances" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
 
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core", default-features = false }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core", default-features = false }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/executive/Cargo.toml b/substrate/frame/executive/Cargo.toml
index 07df7ce5a0..1484e14588 100644
--- a/substrate/frame/executive/Cargo.toml
+++ b/substrate/frame/executive/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "frame-executive"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,22 +13,22 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 serde = { version = "1.0.101", optional = true }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-tracing = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/tracing" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-tracing = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/tracing" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
 
 [dev-dependencies]
 hex-literal = "0.2.1"
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-io ={ version = "2.0.0-rc1", path = "../../primitives/io" }
-pallet-indices = { version = "2.0.0-rc1", path = "../indices" }
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
-pallet-transaction-payment = { version = "2.0.0-rc1", path = "../transaction-payment" }
-sp-version = { version = "2.0.0-rc1", path = "../../primitives/version" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-io ={ version = "2.0.0-rc2", path = "../../primitives/io" }
+pallet-indices = { version = "2.0.0-rc2", path = "../indices" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
+pallet-transaction-payment = { version = "2.0.0-rc2", path = "../transaction-payment" }
+sp-version = { version = "2.0.0-rc2", path = "../../primitives/version" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/finality-tracker/Cargo.toml b/substrate/frame/finality-tracker/Cargo.toml
index 02c15eebeb..248bf64432 100644
--- a/substrate/frame/finality-tracker/Cargo.toml
+++ b/substrate/frame/finality-tracker/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-finality-tracker"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -16,17 +16,17 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", default-features = false, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/inherents" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-finality-tracker = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/finality-tracker" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/inherents" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-finality-tracker = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/finality-tracker" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 impl-trait-for-tuples = "0.1.3"
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/generic-asset/Cargo.toml b/substrate/frame/generic-asset/Cargo.toml
index 4e2f85e890..11576aaeae 100644
--- a/substrate/frame/generic-asset/Cargo.toml
+++ b/substrate/frame/generic-asset/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-generic-asset"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Centrality Developers <support@centrality.ai>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,14 +14,14 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
-sp-io ={ version = "2.0.0-rc1", path = "../../primitives/io" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
+sp-io ={ version = "2.0.0-rc2", path = "../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/grandpa/Cargo.toml b/substrate/frame/grandpa/Cargo.toml
index 9146b17a9e..78a86f23ff 100644
--- a/substrate/frame/grandpa/Cargo.toml
+++ b/substrate/frame/grandpa/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-grandpa"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,27 +14,27 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/application-crypto" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-finality-grandpa = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/finality-grandpa" }
-sp-session = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/session" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-staking = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/staking" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-pallet-session = { version = "2.0.0-rc1", default-features = false, path = "../session" }
-pallet-finality-tracker = { version = "2.0.0-rc1", default-features = false, path = "../finality-tracker" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/application-crypto" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-finality-grandpa = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/finality-grandpa" }
+sp-session = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/session" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-staking = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/staking" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+pallet-session = { version = "2.0.0-rc2", default-features = false, path = "../session" }
+pallet-finality-tracker = { version = "2.0.0-rc2", default-features = false, path = "../finality-tracker" }
 
 [dev-dependencies]
 grandpa = { package = "finality-grandpa", version = "0.12.3", features = ["derive-codec"] }
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io" }
-sp-keyring = { version = "2.0.0-rc1", path = "../../primitives/keyring" }
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
-pallet-offences = { version = "2.0.0-rc1", path = "../offences" }
-pallet-staking = { version = "2.0.0-rc1", path = "../staking" }
-pallet-staking-reward-curve = { version = "2.0.0-rc1", path = "../staking/reward-curve" }
-pallet-timestamp = { version = "2.0.0-rc1", path = "../timestamp" }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io" }
+sp-keyring = { version = "2.0.0-rc2", path = "../../primitives/keyring" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
+pallet-offences = { version = "2.0.0-rc2", path = "../offences" }
+pallet-staking = { version = "2.0.0-rc2", path = "../staking" }
+pallet-staking-reward-curve = { version = "2.0.0-rc2", path = "../staking/reward-curve" }
+pallet-timestamp = { version = "2.0.0-rc2", path = "../timestamp" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/identity/Cargo.toml b/substrate/frame/identity/Cargo.toml
index 5973f12988..d38b6c80f1 100644
--- a/substrate/frame/identity/Cargo.toml
+++ b/substrate/frame/identity/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-identity"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -15,16 +15,16 @@ targets = ["x86_64-unknown-linux-gnu"]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 enumflags2 = { version = "0.6.2" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/im-online/Cargo.toml b/substrate/frame/im-online/Cargo.toml
index 29dc1af011..34b942c889 100644
--- a/substrate/frame/im-online/Cargo.toml
+++ b/substrate/frame/im-online/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-im-online"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,20 +12,20 @@ description = "FRAME's I'm online pallet"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/application-crypto" }
-pallet-authorship = { version = "2.0.0-rc1", default-features = false, path = "../authorship" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/application-crypto" }
+pallet-authorship = { version = "2.0.0-rc2", default-features = false, path = "../authorship" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
 serde = { version = "1.0.101", optional = true }
-pallet-session = { version = "2.0.0-rc1", default-features = false, path = "../session" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-staking = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/staking" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+pallet-session = { version = "2.0.0-rc2", default-features = false, path = "../session" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-staking = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/staking" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
 
 [features]
 default = ["std", "pallet-session/historical"]
diff --git a/substrate/frame/indices/Cargo.toml b/substrate/frame/indices/Cargo.toml
index 32b5b81c64..d4217ca49c 100644
--- a/substrate/frame/indices/Cargo.toml
+++ b/substrate/frame/indices/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-indices"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,16 +14,16 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-keyring = { version = "2.0.0-rc1", optional = true, path = "../../primitives/keyring" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-keyring = { version = "2.0.0-rc2", optional = true, path = "../../primitives/keyring" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/membership/Cargo.toml b/substrate/frame/membership/Cargo.toml
index e881364579..21f55b900b 100644
--- a/substrate/frame/membership/Cargo.toml
+++ b/substrate/frame/membership/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-membership"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,14 +14,14 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/metadata/Cargo.toml b/substrate/frame/metadata/Cargo.toml
index 71ae6858ee..4eac66ca5c 100644
--- a/substrate/frame/metadata/Cargo.toml
+++ b/substrate/frame/metadata/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "frame-metadata"
-version = "11.0.0-rc1"
+version = "11.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,8 +14,8 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/nicks/Cargo.toml b/substrate/frame/nicks/Cargo.toml
index 059e81408b..38952e6e94 100644
--- a/substrate/frame/nicks/Cargo.toml
+++ b/substrate/frame/nicks/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-nicks"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,15 +14,15 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/offences/Cargo.toml b/substrate/frame/offences/Cargo.toml
index 92770ba47b..260419741f 100644
--- a/substrate/frame/offences/Cargo.toml
+++ b/substrate/frame/offences/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-offences"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,18 +12,18 @@ description = "FRAME offences pallet"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-pallet-balances = { version = "2.0.0-rc1", default-features = false, path = "../balances" }
+pallet-balances = { version = "2.0.0-rc2", default-features = false, path = "../balances" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
 serde = { version = "1.0.101", optional = true }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-staking = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/staking" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-staking = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/staking" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/offences/benchmarking/Cargo.toml b/substrate/frame/offences/benchmarking/Cargo.toml
index c4564d6c82..f72036361b 100644
--- a/substrate/frame/offences/benchmarking/Cargo.toml
+++ b/substrate/frame/offences/benchmarking/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-offences-benchmarking"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,27 +13,27 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../../benchmarking" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../../system" }
-pallet-babe = { version = "2.0.0-rc1", default-features = false, path = "../../babe" }
-pallet-balances = { version = "2.0.0-rc1", default-features = false, path = "../../balances" }
-pallet-grandpa = { version = "2.0.0-rc1", default-features = false, path = "../../grandpa" }
-pallet-im-online = { version = "2.0.0-rc1", default-features = false, path = "../../im-online" }
-pallet-offences = { version = "2.0.0-rc1", default-features = false, features = ["runtime-benchmarks"], path = "../../offences" }
-pallet-session = { version = "2.0.0-rc1", default-features = false, path = "../../session" }
-pallet-staking = { version = "2.0.0-rc1", default-features = false, features = ["runtime-benchmarks"], path = "../../staking" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/runtime" }
-sp-staking = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/staking" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/std" }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../../benchmarking" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../../system" }
+pallet-babe = { version = "2.0.0-rc2", default-features = false, path = "../../babe" }
+pallet-balances = { version = "2.0.0-rc2", default-features = false, path = "../../balances" }
+pallet-grandpa = { version = "2.0.0-rc2", default-features = false, path = "../../grandpa" }
+pallet-im-online = { version = "2.0.0-rc2", default-features = false, path = "../../im-online" }
+pallet-offences = { version = "2.0.0-rc2", default-features = false, features = ["runtime-benchmarks"], path = "../../offences" }
+pallet-session = { version = "2.0.0-rc2", default-features = false, path = "../../session" }
+pallet-staking = { version = "2.0.0-rc2", default-features = false, features = ["runtime-benchmarks"], path = "../../staking" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/runtime" }
+sp-staking = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/staking" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/std" }
 
 [dev-dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
-pallet-staking-reward-curve = { version = "2.0.0-rc1", path = "../../staking/reward-curve" }
-pallet-timestamp = { version = "2.0.0-rc1", path = "../../timestamp" }
+pallet-staking-reward-curve = { version = "2.0.0-rc2", path = "../../staking/reward-curve" }
+pallet-timestamp = { version = "2.0.0-rc2", path = "../../timestamp" }
 serde = { version = "1.0.101" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-io = { version = "2.0.0-rc1", path = "../../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-io = { version = "2.0.0-rc2", path = "../../../primitives/io" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/randomness-collective-flip/Cargo.toml b/substrate/frame/randomness-collective-flip/Cargo.toml
index 7653d2256b..a539c295fe 100644
--- a/substrate/frame/randomness-collective-flip/Cargo.toml
+++ b/substrate/frame/randomness-collective-flip/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-randomness-collective-flip"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,14 +14,14 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 safe-mix = { version = "1.0", default-features = false }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/recovery/Cargo.toml b/substrate/frame/recovery/Cargo.toml
index 482cde4cd2..fe9e904fb3 100644
--- a/substrate/frame/recovery/Cargo.toml
+++ b/substrate/frame/recovery/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-recovery"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -15,15 +15,15 @@ targets = ["x86_64-unknown-linux-gnu"]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 enumflags2 = { version = "0.6.2" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/scheduler/Cargo.toml b/substrate/frame/scheduler/Cargo.toml
index e150d3b43b..79a1a89269 100644
--- a/substrate/frame/scheduler/Cargo.toml
+++ b/substrate/frame/scheduler/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-scheduler"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Unlicense"
@@ -11,16 +11,16 @@ description = "FRAME example pallet"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.2.0", default-features = false }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
 
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core", default-features = false }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core", default-features = false }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/scored-pool/Cargo.toml b/substrate/frame/scored-pool/Cargo.toml
index e72e1bd1ad..4bee2eec30 100644
--- a/substrate/frame/scored-pool/Cargo.toml
+++ b/substrate/frame/scored-pool/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-scored-pool"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,15 +14,15 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.101", optional = true }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/session/Cargo.toml b/substrate/frame/session/Cargo.toml
index b653f2bd98..b79dc78f12 100644
--- a/substrate/frame/session/Cargo.toml
+++ b/substrate/frame/session/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-session"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,20 +14,20 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-session = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/session" }
-sp-staking = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/staking" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-pallet-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../timestamp" }
-sp-trie = { version = "2.0.0-rc1", optional = true, default-features = false, path = "../../primitives/trie" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-session = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/session" }
+sp-staking = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/staking" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+pallet-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../timestamp" }
+sp-trie = { version = "2.0.0-rc2", optional = true, default-features = false, path = "../../primitives/trie" }
 impl-trait-for-tuples = "0.1.3"
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-io ={ version = "2.0.0-rc1", path = "../../primitives/io" }
-sp-application-crypto = { version = "2.0.0-rc1", path = "../../primitives/application-crypto" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-io ={ version = "2.0.0-rc2", path = "../../primitives/io" }
+sp-application-crypto = { version = "2.0.0-rc2", path = "../../primitives/application-crypto" }
 lazy_static = "1.4.0"
 
 [features]
diff --git a/substrate/frame/session/benchmarking/Cargo.toml b/substrate/frame/session/benchmarking/Cargo.toml
index c8fa5d4453..1fe2438195 100644
--- a/substrate/frame/session/benchmarking/Cargo.toml
+++ b/substrate/frame/session/benchmarking/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-session-benchmarking"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,22 +12,22 @@ description = "FRAME sessions pallet benchmarking"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/runtime" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../../system" }
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../../benchmarking" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../../support" }
-pallet-staking = { version = "2.0.0-rc1", default-features = false, features = ["runtime-benchmarks"], path = "../../staking" }
-pallet-session = { version = "2.0.0-rc1", default-features = false, path = "../../session" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/runtime" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../../system" }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../../benchmarking" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../../support" }
+pallet-staking = { version = "2.0.0-rc2", default-features = false, features = ["runtime-benchmarks"], path = "../../staking" }
+pallet-session = { version = "2.0.0-rc2", default-features = false, path = "../../session" }
 
 [dev-dependencies]
 serde = { version = "1.0.101" }
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-pallet-staking-reward-curve = { version = "2.0.0-rc1", path = "../../staking/reward-curve" }
-sp-io ={ version = "2.0.0-rc1", path = "../../../primitives/io" }
-pallet-timestamp = { version = "2.0.0-rc1", path = "../../timestamp" }
-pallet-balances = { version = "2.0.0-rc1", path = "../../balances" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+pallet-staking-reward-curve = { version = "2.0.0-rc2", path = "../../staking/reward-curve" }
+sp-io ={ version = "2.0.0-rc2", path = "../../../primitives/io" }
+pallet-timestamp = { version = "2.0.0-rc2", path = "../../timestamp" }
+pallet-balances = { version = "2.0.0-rc2", path = "../../balances" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/society/Cargo.toml b/substrate/frame/society/Cargo.toml
index 41162f457c..25f596e9fd 100644
--- a/substrate/frame/society/Cargo.toml
+++ b/substrate/frame/society/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-society"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,16 +14,16 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 rand_chacha = { version = "0.2", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-io ={ version = "2.0.0-rc1", path = "../../primitives/io" }
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-io ={ version = "2.0.0-rc2", path = "../../primitives/io" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/staking/Cargo.toml b/substrate/frame/staking/Cargo.toml
index f6fa826a3d..916e5676da 100644
--- a/substrate/frame/staking/Cargo.toml
+++ b/substrate/frame/staking/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-staking"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -15,29 +15,29 @@ targets = ["x86_64-unknown-linux-gnu"]
 static_assertions = "1.1.0"
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-phragmen = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/phragmen" }
-sp-io ={ version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-staking = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/staking" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-pallet-session = { version = "2.0.0-rc1", default-features = false, features = ["historical"], path = "../session" }
-pallet-authorship = { version = "2.0.0-rc1", default-features = false, path = "../authorship" }
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/application-crypto" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-phragmen = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/phragmen" }
+sp-io ={ version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-staking = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/staking" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+pallet-session = { version = "2.0.0-rc2", default-features = false, features = ["historical"], path = "../session" }
+pallet-authorship = { version = "2.0.0-rc2", default-features = false, path = "../authorship" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/application-crypto" }
 
 # Optional imports for benchmarking
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
 rand_chacha = { version = "0.2", default-features = false, optional = true }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-storage = { version = "2.0.0-rc1", path = "../../primitives/storage" }
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
-pallet-timestamp = { version = "2.0.0-rc1", path = "../timestamp" }
-pallet-staking-reward-curve = { version = "2.0.0-rc1",  path = "../staking/reward-curve" }
-substrate-test-utils = { version = "2.0.0-rc1", path = "../../test-utils" }
-frame-benchmarking = { version = "2.0.0-rc1", path = "../benchmarking" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-storage = { version = "2.0.0-rc2", path = "../../primitives/storage" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
+pallet-timestamp = { version = "2.0.0-rc2", path = "../timestamp" }
+pallet-staking-reward-curve = { version = "2.0.0-rc2",  path = "../staking/reward-curve" }
+substrate-test-utils = { version = "2.0.0-rc2", path = "../../test-utils" }
+frame-benchmarking = { version = "2.0.0-rc2", path = "../benchmarking" }
 rand_chacha = { version = "0.2" }
 parking_lot = "0.10.2"
 env_logger = "0.7.1"
diff --git a/substrate/frame/staking/fuzzer/Cargo.lock b/substrate/frame/staking/fuzzer/Cargo.lock
index b73462e2df..f6cb65aa5c 100644
--- a/substrate/frame/staking/fuzzer/Cargo.lock
+++ b/substrate/frame/staking/fuzzer/Cargo.lock
@@ -1763,7 +1763,7 @@ dependencies = [
 
 [[package]]
 name = "sp-phragmen-compact"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
diff --git a/substrate/frame/staking/fuzzer/Cargo.toml b/substrate/frame/staking/fuzzer/Cargo.toml
index edd3037a7e..f4a31ff11a 100644
--- a/substrate/frame/staking/fuzzer/Cargo.toml
+++ b/substrate/frame/staking/fuzzer/Cargo.toml
@@ -15,19 +15,19 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 honggfuzz = "0.5"
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-pallet-staking = { version = "2.0.0-rc1", path = "..", features = ["runtime-benchmarks"] }
-pallet-staking-reward-curve = { version = "2.0.0-rc1",  path = "../reward-curve" }
-pallet-session = { version = "2.0.0-rc1", path = "../../session" }
-pallet-indices = { version = "2.0.0-rc1", path = "../../indices" }
-pallet-balances = { version = "2.0.0-rc1", path = "../../balances" }
-pallet-timestamp = { version = "2.0.0-rc1", path = "../../timestamp" }
-frame-system = { version = "2.0.0-rc1", path = "../../system" }
-frame-support = { version = "2.0.0-rc1", path = "../../support" }
-sp-std = { version = "2.0.0-rc1", path = "../../../primitives/std" }
-sp-io ={ version = "2.0.0-rc1", path = "../../../primitives/io" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-phragmen = { version = "2.0.0-rc1", path = "../../../primitives/phragmen" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
+pallet-staking = { version = "2.0.0-rc2", path = "..", features = ["runtime-benchmarks"] }
+pallet-staking-reward-curve = { version = "2.0.0-rc2",  path = "../reward-curve" }
+pallet-session = { version = "2.0.0-rc2", path = "../../session" }
+pallet-indices = { version = "2.0.0-rc2", path = "../../indices" }
+pallet-balances = { version = "2.0.0-rc2", path = "../../balances" }
+pallet-timestamp = { version = "2.0.0-rc2", path = "../../timestamp" }
+frame-system = { version = "2.0.0-rc2", path = "../../system" }
+frame-support = { version = "2.0.0-rc2", path = "../../support" }
+sp-std = { version = "2.0.0-rc2", path = "../../../primitives/std" }
+sp-io ={ version = "2.0.0-rc2", path = "../../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-phragmen = { version = "2.0.0-rc2", path = "../../../primitives/phragmen" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
 
 [[bin]]
 name = "submit_solution"
diff --git a/substrate/frame/staking/reward-curve/Cargo.toml b/substrate/frame/staking/reward-curve/Cargo.toml
index 3e6e4ca738..582f8d79f3 100644
--- a/substrate/frame/staking/reward-curve/Cargo.toml
+++ b/substrate/frame/staking/reward-curve/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-staking-reward-curve"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -21,4 +21,4 @@ proc-macro2 = "1.0.6"
 proc-macro-crate = "0.1.4"
 
 [dev-dependencies]
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
diff --git a/substrate/frame/sudo/Cargo.toml b/substrate/frame/sudo/Cargo.toml
index f6df3ec03e..979eeb2b28 100644
--- a/substrate/frame/sudo/Cargo.toml
+++ b/substrate/frame/sudo/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-sudo"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,14 +14,14 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/support/Cargo.toml b/substrate/frame/support/Cargo.toml
index ba98adb8fc..d9117cf526 100644
--- a/substrate/frame/support/Cargo.toml
+++ b/substrate/frame/support/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "frame-support"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -15,25 +15,25 @@ targets = ["x86_64-unknown-linux-gnu"]
 log = "0.4"
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-frame-metadata = { version = "11.0.0-rc1", default-features = false, path = "../metadata" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-tracing = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/tracing" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-arithmetic = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/arithmetic" }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/inherents" }
-frame-support-procedural = { version = "2.0.0-rc1", path = "./procedural" }
+frame-metadata = { version = "11.0.0-rc2", default-features = false, path = "../metadata" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-tracing = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/tracing" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-arithmetic = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/arithmetic" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/inherents" }
+frame-support-procedural = { version = "2.0.0-rc2", path = "./procedural" }
 paste = "0.1.6"
 once_cell = { version = "1", default-features = false, optional = true }
-sp-state-machine = { version = "0.8.0-rc1", optional = true, path = "../../primitives/state-machine" }
+sp-state-machine = { version = "0.8.0-rc2", optional = true, path = "../../primitives/state-machine" }
 bitmask = { version = "0.5.0", default-features = false }
 impl-trait-for-tuples = "0.1.3"
 smallvec = "1.4.0"
 
 [dev-dependencies]
 pretty_assertions = "0.6.1"
-frame-system = { version = "2.0.0-rc1", path = "../system" }
+frame-system = { version = "2.0.0-rc2", path = "../system" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/support/procedural/Cargo.toml b/substrate/frame/support/procedural/Cargo.toml
index 90c90f4ca0..0c20ac93e1 100644
--- a/substrate/frame/support/procedural/Cargo.toml
+++ b/substrate/frame/support/procedural/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "frame-support-procedural"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 proc-macro = true
 
 [dependencies]
-frame-support-procedural-tools = { version = "2.0.0-rc1", path = "./tools" }
+frame-support-procedural-tools = { version = "2.0.0-rc2", path = "./tools" }
 proc-macro2 = "1.0.6"
 quote = "1.0.3"
 syn = { version = "1.0.7", features = ["full"] }
diff --git a/substrate/frame/support/procedural/tools/Cargo.toml b/substrate/frame/support/procedural/tools/Cargo.toml
index 2f6d124063..052a074024 100644
--- a/substrate/frame/support/procedural/tools/Cargo.toml
+++ b/substrate/frame/support/procedural/tools/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "frame-support-procedural-tools"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,7 +12,7 @@ description = "Proc macro helpers for procedural macros"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-frame-support-procedural-tools-derive = { version = "2.0.0-rc1", path = "./derive" }
+frame-support-procedural-tools-derive = { version = "2.0.0-rc2", path = "./derive" }
 proc-macro2 = "1.0.6"
 quote = "1.0.3"
 syn = { version = "1.0.7", features = ["full", "visit"] }
diff --git a/substrate/frame/support/procedural/tools/derive/Cargo.toml b/substrate/frame/support/procedural/tools/derive/Cargo.toml
index 20d427de47..75cb6f3045 100644
--- a/substrate/frame/support/procedural/tools/derive/Cargo.toml
+++ b/substrate/frame/support/procedural/tools/derive/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "frame-support-procedural-tools-derive"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/frame/support/test/Cargo.toml b/substrate/frame/support/test/Cargo.toml
index 8b858cf5b0..6685f65551 100644
--- a/substrate/frame/support/test/Cargo.toml
+++ b/substrate/frame/support/test/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "frame-support-test"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,12 +14,12 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", default-features = false, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-io ={ version = "2.0.0-rc1", path = "../../../primitives/io", default-features = false }
-sp-state-machine = { version = "0.8.0-rc1", optional = true, path = "../../../primitives/state-machine" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../" }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/inherents" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/runtime" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/core" }
+sp-io ={ version = "2.0.0-rc2", path = "../../../primitives/io", default-features = false }
+sp-state-machine = { version = "0.8.0-rc2", optional = true, path = "../../../primitives/state-machine" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/inherents" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/runtime" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/core" }
 trybuild = "1.0.17"
 pretty_assertions = "0.6.1"
 rustversion = "1.0.0"
diff --git a/substrate/frame/system/Cargo.toml b/substrate/frame/system/Cargo.toml
index b88553729d..0928951929 100644
--- a/substrate/frame/system/Cargo.toml
+++ b/substrate/frame/system/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "frame-system"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,18 +14,18 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io", default-features = false }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-version = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/version" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io", default-features = false }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-version = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/version" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
 impl-trait-for-tuples = "0.1.3"
 
 [dev-dependencies]
 criterion = "0.2.11"
-sp-externalities = { version = "0.8.0-rc1", path = "../../primitives/externalities" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../test-utils/runtime/client" }
+sp-externalities = { version = "0.8.0-rc2", path = "../../primitives/externalities" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../test-utils/runtime/client" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/system/benchmarking/Cargo.toml b/substrate/frame/system/benchmarking/Cargo.toml
index 748dc31467..14fb5206fe 100644
--- a/substrate/frame/system/benchmarking/Cargo.toml
+++ b/substrate/frame/system/benchmarking/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "frame-system-benchmarking"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,16 +13,16 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/runtime" }
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../../benchmarking" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../../system" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../../support" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../../primitives/core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/runtime" }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../../benchmarking" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../../system" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../../support" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../../primitives/core" }
 
 [dev-dependencies]
 serde = { version = "1.0.101" }
-sp-io ={ version = "2.0.0-rc1", path = "../../../primitives/io" }
+sp-io ={ version = "2.0.0-rc2", path = "../../../primitives/io" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/system/rpc/runtime-api/Cargo.toml b/substrate/frame/system/rpc/runtime-api/Cargo.toml
index 72e2837037..ef1cc7abac 100644
--- a/substrate/frame/system/rpc/runtime-api/Cargo.toml
+++ b/substrate/frame/system/rpc/runtime-api/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "frame-system-rpc-runtime-api"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,7 +12,7 @@ description = "Runtime API definition required by System RPC extensions."
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../../../../primitives/api" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../../../../primitives/api" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
 
 [features]
diff --git a/substrate/frame/timestamp/Cargo.toml b/substrate/frame/timestamp/Cargo.toml
index 6146700cd5..cda7904f75 100644
--- a/substrate/frame/timestamp/Cargo.toml
+++ b/substrate/frame/timestamp/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-timestamp"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -16,19 +16,19 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io", optional = true }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/inherents" }
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-sp-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/timestamp" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io", optional = true }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/inherents" }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+sp-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/timestamp" }
 impl-trait-for-tuples = "0.1.3"
 
 [dev-dependencies]
-sp-io ={ version = "2.0.0-rc1", path = "../../primitives/io" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
+sp-io ={ version = "2.0.0-rc2", path = "../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/transaction-payment/Cargo.toml b/substrate/frame/transaction-payment/Cargo.toml
index e4af397388..17e05fa40f 100644
--- a/substrate/frame/transaction-payment/Cargo.toml
+++ b/substrate/frame/transaction-payment/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-transaction-payment"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,18 +13,18 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-pallet-transaction-payment-rpc-runtime-api = { version = "2.0.0-rc1", default-features = false, path = "./rpc/runtime-api" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+pallet-transaction-payment-rpc-runtime-api = { version = "2.0.0-rc2", default-features = false, path = "./rpc/runtime-api" }
 smallvec = "1.4.0"
 
 [dev-dependencies]
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
-sp-storage = { version = "2.0.0-rc1", path = "../../primitives/storage" }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
+sp-storage = { version = "2.0.0-rc2", path = "../../primitives/storage" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/transaction-payment/rpc/Cargo.toml b/substrate/frame/transaction-payment/rpc/Cargo.toml
index e3e935c3c8..3ca2f4be8e 100644
--- a/substrate/frame/transaction-payment/rpc/Cargo.toml
+++ b/substrate/frame/transaction-payment/rpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-transaction-payment-rpc"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -16,10 +16,10 @@ codec = { package = "parity-scale-codec", version = "1.3.0" }
 jsonrpc-core = "14.0.3"
 jsonrpc-core-client = "14.0.5"
 jsonrpc-derive = "14.0.3"
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sp-rpc = { version = "2.0.0-rc1", path = "../../../primitives/rpc" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sp-rpc = { version = "2.0.0-rc2", path = "../../../primitives/rpc" }
 serde = { version = "1.0.101", features = ["derive"] }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-api = { version = "2.0.0-rc1", path = "../../../primitives/api" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-pallet-transaction-payment-rpc-runtime-api = { version = "2.0.0-rc1", path = "./runtime-api" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-api = { version = "2.0.0-rc2", path = "../../../primitives/api" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+pallet-transaction-payment-rpc-runtime-api = { version = "2.0.0-rc2", path = "./runtime-api" }
diff --git a/substrate/frame/transaction-payment/rpc/runtime-api/Cargo.toml b/substrate/frame/transaction-payment/rpc/runtime-api/Cargo.toml
index 4466a2e53d..e4be938b3d 100644
--- a/substrate/frame/transaction-payment/rpc/runtime-api/Cargo.toml
+++ b/substrate/frame/transaction-payment/rpc/runtime-api/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-transaction-payment-rpc-runtime-api"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,11 +13,11 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../../../../primitives/api" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../../../../primitives/api" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../../../support" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../../../support" }
 
 [dev-dependencies]
 serde_json = "1.0.41"
diff --git a/substrate/frame/treasury/Cargo.toml b/substrate/frame/treasury/Cargo.toml
index a78037ebe0..17c716fdcd 100644
--- a/substrate/frame/treasury/Cargo.toml
+++ b/substrate/frame/treasury/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-treasury"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,17 +14,17 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-pallet-balances = { version = "2.0.0-rc1", default-features = false, path = "../balances" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+pallet-balances = { version = "2.0.0-rc2", default-features = false, path = "../balances" }
 
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
 
 [dev-dependencies]
-sp-io ={ version = "2.0.0-rc1", path = "../../primitives/io" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
+sp-io ={ version = "2.0.0-rc2", path = "../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/utility/Cargo.toml b/substrate/frame/utility/Cargo.toml
index b6c7fffdaa..769e94c1bd 100644
--- a/substrate/frame/utility/Cargo.toml
+++ b/substrate/frame/utility/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-utility"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,18 +14,18 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
 
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
 
 [features]
 default = ["std"]
diff --git a/substrate/frame/vesting/Cargo.toml b/substrate/frame/vesting/Cargo.toml
index 311fd5ae40..314abd08d0 100644
--- a/substrate/frame/vesting/Cargo.toml
+++ b/substrate/frame/vesting/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-vesting"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -15,17 +15,17 @@ targets = ["x86_64-unknown-linux-gnu"]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 enumflags2 = { version = "0.6.2" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../support" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../system" }
-frame-benchmarking = { version = "2.0.0-rc1", default-features = false, path = "../benchmarking", optional = true }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../support" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../system" }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, path = "../benchmarking", optional = true }
 
 [dev-dependencies]
-sp-io = { version = "2.0.0-rc1", path = "../../primitives/io" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-pallet-balances = { version = "2.0.0-rc1", path = "../balances" }
-sp-storage = { version = "2.0.0-rc1", path = "../../primitives/storage" }
+sp-io = { version = "2.0.0-rc2", path = "../../primitives/io" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+pallet-balances = { version = "2.0.0-rc2", path = "../balances" }
+sp-storage = { version = "2.0.0-rc2", path = "../../primitives/storage" }
 hex-literal = "0.2.1"
 
 [features]
diff --git a/substrate/primitives/allocator/Cargo.toml b/substrate/primitives/allocator/Cargo.toml
index e83d70b4dc..7bf9ffd43f 100644
--- a/substrate/primitives/allocator/Cargo.toml
+++ b/substrate/primitives/allocator/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-allocator"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,9 +13,9 @@ documentation = "https://docs.rs/sp-allocator"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-std = { version = "2.0.0-rc1", path = "../std", default-features = false }
-sp-core = { version = "2.0.0-rc1", path = "../core", default-features = false }
-sp-wasm-interface = { version = "2.0.0-rc1", path = "../wasm-interface", default-features = false }
+sp-std = { version = "2.0.0-rc2", path = "../std", default-features = false }
+sp-core = { version = "2.0.0-rc2", path = "../core", default-features = false }
+sp-wasm-interface = { version = "2.0.0-rc2", path = "../wasm-interface", default-features = false }
 log = { version = "0.4.8", optional = true }
 derive_more = { version = "0.99.2", optional = true }
 
diff --git a/substrate/primitives/api/Cargo.toml b/substrate/primitives/api/Cargo.toml
index f38da4da0c..980049235c 100644
--- a/substrate/primitives/api/Cargo.toml
+++ b/substrate/primitives/api/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-api"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,16 +13,16 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-api-proc-macro = { version = "2.0.0-rc1", path = "proc-macro" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../core" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../runtime" }
-sp-version = { version = "2.0.0-rc1", default-features = false, path = "../version" }
-sp-state-machine = { version = "0.8.0-rc1", optional = true, path = "../../primitives/state-machine" }
+sp-api-proc-macro = { version = "2.0.0-rc2", path = "proc-macro" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../runtime" }
+sp-version = { version = "2.0.0-rc2", default-features = false, path = "../version" }
+sp-state-machine = { version = "0.8.0-rc2", optional = true, path = "../../primitives/state-machine" }
 hash-db = { version = "0.15.2", optional = true }
 
 [dev-dependencies]
-sp-test-primitives = { version = "2.0.0-rc1", path = "../test-primitives" }
+sp-test-primitives = { version = "2.0.0-rc2", path = "../test-primitives" }
 
 [features]
 default = [ "std" ]
diff --git a/substrate/primitives/api/proc-macro/Cargo.toml b/substrate/primitives/api/proc-macro/Cargo.toml
index c0441de584..ce53ee9970 100644
--- a/substrate/primitives/api/proc-macro/Cargo.toml
+++ b/substrate/primitives/api/proc-macro/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-api-proc-macro"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/primitives/api/test/Cargo.toml b/substrate/primitives/api/test/Cargo.toml
index 0760472b77..59b1e76ad9 100644
--- a/substrate/primitives/api/test/Cargo.toml
+++ b/substrate/primitives/api/test/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-api-test"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,22 +12,22 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-api = { version = "2.0.0-rc1", path = "../" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../../test-utils/runtime/client" }
-sp-version = { version = "2.0.0-rc1", path = "../../version" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../runtime" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../blockchain" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
-sc-block-builder = { version = "0.8.0-rc1", path = "../../../client/block-builder" }
+sp-api = { version = "2.0.0-rc2", path = "../" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../../test-utils/runtime/client" }
+sp-version = { version = "2.0.0-rc2", path = "../../version" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../runtime" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../blockchain" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
+sc-block-builder = { version = "0.8.0-rc2", path = "../../../client/block-builder" }
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../../primitives/state-machine" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../../primitives/state-machine" }
 trybuild = "1.0.17"
 rustversion = "1.0.0"
 
 [dev-dependencies]
 criterion = "0.3.0"
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../../test-utils/runtime/client" }
-sp-core = { version = "2.0.0-rc1", path = "../../core" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../../test-utils/runtime/client" }
+sp-core = { version = "2.0.0-rc2", path = "../../core" }
 
 [[bench]]
 name = "bench"
diff --git a/substrate/primitives/application-crypto/Cargo.toml b/substrate/primitives/application-crypto/Cargo.toml
index fa13fd947e..2da6b31627 100644
--- a/substrate/primitives/application-crypto/Cargo.toml
+++ b/substrate/primitives/application-crypto/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-application-crypto"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 description = "Provides facilities for generating application specific crypto wrapper types."
@@ -14,11 +14,11 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 
 [dependencies]
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../core" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../core" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
 
 [features]
 default = [ "std" ]
diff --git a/substrate/primitives/application-crypto/test/Cargo.toml b/substrate/primitives/application-crypto/test/Cargo.toml
index 284af732a1..df7fc51698 100644
--- a/substrate/primitives/application-crypto/test/Cargo.toml
+++ b/substrate/primitives/application-crypto/test/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-application-crypto-test"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 description = "Integration tests for application-crypto"
@@ -13,8 +13,8 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../core" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../../test-utils/runtime/client" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../runtime" }
-sp-api = { version = "2.0.0-rc1", path = "../../api" }
-sp-application-crypto = { version = "2.0.0-rc1", path = "../" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../core" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../../test-utils/runtime/client" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../runtime" }
+sp-api = { version = "2.0.0-rc2", path = "../../api" }
+sp-application-crypto = { version = "2.0.0-rc2", path = "../" }
diff --git a/substrate/primitives/arithmetic/Cargo.toml b/substrate/primitives/arithmetic/Cargo.toml
index 50eab59c86..5953d89e9c 100644
--- a/substrate/primitives/arithmetic/Cargo.toml
+++ b/substrate/primitives/arithmetic/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-arithmetic"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -17,9 +17,9 @@ targets = ["x86_64-unknown-linux-gnu"]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 integer-sqrt = "0.1.2"
 num-traits = { version = "0.2.8", default-features = false }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
-sp-debug-derive = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/debug-derive" }
+sp-debug-derive = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/debug-derive" }
 
 [dev-dependencies]
 rand = "0.7.2"
diff --git a/substrate/primitives/arithmetic/fuzzer/Cargo.toml b/substrate/primitives/arithmetic/fuzzer/Cargo.toml
index c388d0259f..f870152f54 100644
--- a/substrate/primitives/arithmetic/fuzzer/Cargo.toml
+++ b/substrate/primitives/arithmetic/fuzzer/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-arithmetic-fuzzer"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,7 +14,7 @@ publish = false
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-arithmetic = { version = "2.0.0-rc1", path = ".." }
+sp-arithmetic = { version = "2.0.0-rc2", path = ".." }
 honggfuzz = "0.5.49"
 primitive-types = "0.7.0"
 num-bigint = "0.2"
diff --git a/substrate/primitives/authority-discovery/Cargo.toml b/substrate/primitives/authority-discovery/Cargo.toml
index 5d3db31f8a..24fcb91396 100644
--- a/substrate/primitives/authority-discovery/Cargo.toml
+++ b/substrate/primitives/authority-discovery/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-authority-discovery"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Authority discovery primitives"
 edition = "2018"
@@ -12,11 +12,11 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../application-crypto" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../application-crypto" }
 codec = { package = "parity-scale-codec", default-features = false, version = "1.3.0" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../api" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../api" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../runtime" }
 
 [features]
 default = ["std"]
diff --git a/substrate/primitives/authorship/Cargo.toml b/substrate/primitives/authorship/Cargo.toml
index f28f5b6efe..5ae5561a59 100644
--- a/substrate/primitives/authorship/Cargo.toml
+++ b/substrate/primitives/authorship/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-authorship"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Authorship primitives"
 edition = "2018"
@@ -12,9 +12,9 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../inherents" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../runtime" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../inherents" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 
 [features]
diff --git a/substrate/primitives/block-builder/Cargo.toml b/substrate/primitives/block-builder/Cargo.toml
index 565caffe9d..767dfeb87e 100644
--- a/substrate/primitives/block-builder/Cargo.toml
+++ b/substrate/primitives/block-builder/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-block-builder"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,11 +12,11 @@ description = "The block builder runtime api."
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../runtime" }
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../api" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../runtime" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../api" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../inherents" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../inherents" }
 
 [features]
 default = [ "std" ]
diff --git a/substrate/primitives/blockchain/Cargo.toml b/substrate/primitives/blockchain/Cargo.toml
index 36d13f0cec..d76d9c7209 100644
--- a/substrate/primitives/blockchain/Cargo.toml
+++ b/substrate/primitives/blockchain/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-blockchain"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -19,7 +19,7 @@ lru = "0.4.0"
 parking_lot = "0.10.0"
 derive_more = "0.99.2"
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-consensus = { version = "0.8.0-rc1", path = "../consensus/common" }
-sp-runtime = { version = "2.0.0-rc1", path = "../runtime" }
-sp-block-builder = { version = "2.0.0-rc1", path = "../block-builder" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../state-machine" }
+sp-consensus = { version = "0.8.0-rc2", path = "../consensus/common" }
+sp-runtime = { version = "2.0.0-rc2", path = "../runtime" }
+sp-block-builder = { version = "2.0.0-rc2", path = "../block-builder" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../state-machine" }
diff --git a/substrate/primitives/chain-spec/Cargo.toml b/substrate/primitives/chain-spec/Cargo.toml
index d530592fec..9b2658abe5 100644
--- a/substrate/primitives/chain-spec/Cargo.toml
+++ b/substrate/primitives/chain-spec/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-chain-spec"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/primitives/consensus/aura/Cargo.toml b/substrate/primitives/consensus/aura/Cargo.toml
index 9323788300..b270bdb476 100644
--- a/substrate/primitives/consensus/aura/Cargo.toml
+++ b/substrate/primitives/consensus/aura/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-consensus-aura"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Primitives for Aura consensus"
 edition = "2018"
@@ -12,13 +12,13 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../../application-crypto" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../../application-crypto" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../std" }
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../../api" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../runtime" }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../../inherents" }
-sp-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../../timestamp" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../std" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../../api" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../runtime" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../../inherents" }
+sp-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../../timestamp" }
 
 [features]
 default = ["std"]
diff --git a/substrate/primitives/consensus/babe/Cargo.toml b/substrate/primitives/consensus/babe/Cargo.toml
index 3a92b2f2c6..6cda2695d9 100644
--- a/substrate/primitives/consensus/babe/Cargo.toml
+++ b/substrate/primitives/consensus/babe/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-consensus-babe"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Primitives for BABE consensus"
 edition = "2018"
@@ -12,16 +12,16 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../../application-crypto" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../../application-crypto" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
 merlin = { version = "2.0", default-features = false }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../std" }
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../../api" }
-sp-consensus = { version = "0.8.0-rc1", optional = true, path = "../common" }
-sp-consensus-vrf = { version = "0.8.0-rc1", path = "../vrf", default-features = false }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../../inherents" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../runtime" }
-sp-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../../timestamp" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../std" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../../api" }
+sp-consensus = { version = "0.8.0-rc2", optional = true, path = "../common" }
+sp-consensus-vrf = { version = "0.8.0-rc2", path = "../vrf", default-features = false }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../../inherents" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../runtime" }
+sp-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../../timestamp" }
 
 [features]
 default = ["std"]
diff --git a/substrate/primitives/consensus/common/Cargo.toml b/substrate/primitives/consensus/common/Cargo.toml
index a652569895..f91ed927b9 100644
--- a/substrate/primitives/consensus/common/Cargo.toml
+++ b/substrate/primitives/consensus/common/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-consensus"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -17,22 +17,22 @@ targets = ["x86_64-unknown-linux-gnu"]
 derive_more = "0.99.2"
 libp2p = { version = "0.19.1", default-features = false }
 log = "0.4.8"
-sp-core = { path= "../../core", version = "2.0.0-rc1"}
-sp-inherents = { version = "2.0.0-rc1", path = "../../inherents" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../../primitives/state-machine" }
+sp-core = { path= "../../core", version = "2.0.0-rc2"}
+sp-inherents = { version = "2.0.0-rc2", path = "../../inherents" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../../primitives/state-machine" }
 futures = { version = "0.3.1", features = ["thread-pool"] }
 futures-timer = "3.0.1"
-sp-std = { version = "2.0.0-rc1", path = "../../std" }
-sp-version = { version = "2.0.0-rc1", path = "../../version" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../runtime" }
-sp-utils = { version = "2.0.0-rc1", path = "../../utils" }
+sp-std = { version = "2.0.0-rc2", path = "../../std" }
+sp-version = { version = "2.0.0-rc2", path = "../../version" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../runtime" }
+sp-utils = { version = "2.0.0-rc2", path = "../../utils" }
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
 parking_lot = "0.10.0"
 serde = { version = "1.0", features = ["derive"] }
-prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../../utils/prometheus", version = "0.8.0-rc1"}
+prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../../utils/prometheus", version = "0.8.0-rc2"}
 
 [dev-dependencies]
-sp-test-primitives = { version = "2.0.0-rc1", path = "../../test-primitives" }
+sp-test-primitives = { version = "2.0.0-rc2", path = "../../test-primitives" }
 
 [features]
 default = []
diff --git a/substrate/primitives/consensus/pow/Cargo.toml b/substrate/primitives/consensus/pow/Cargo.toml
index 8ac24db410..d696b0a975 100644
--- a/substrate/primitives/consensus/pow/Cargo.toml
+++ b/substrate/primitives/consensus/pow/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-consensus-pow"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Primitives for Aura consensus"
 edition = "2018"
@@ -12,10 +12,10 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../../api" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../runtime" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../core" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../../api" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../runtime" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../core" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 
 [features]
diff --git a/substrate/primitives/consensus/vrf/Cargo.toml b/substrate/primitives/consensus/vrf/Cargo.toml
index cb4b270744..3e0f3c8c3f 100644
--- a/substrate/primitives/consensus/vrf/Cargo.toml
+++ b/substrate/primitives/consensus/vrf/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-consensus-vrf"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Primitives for VRF based consensus"
 edition = "2018"
@@ -14,9 +14,9 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 codec = { version = "1.0.0", package = "parity-scale-codec", default-features = false }
 schnorrkel = { version = "0.9.1", features = ["preaudit_deprecated", "u64_backend"], default-features = false }
-sp-std = { version = "2.0.0-rc1", path = "../../std", default-features = false }
-sp-core = { version = "2.0.0-rc1", path = "../../core", default-features = false }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../runtime" }
+sp-std = { version = "2.0.0-rc2", path = "../../std", default-features = false }
+sp-core = { version = "2.0.0-rc2", path = "../../core", default-features = false }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../runtime" }
 
 [features]
 default = ["std"]
diff --git a/substrate/primitives/core/Cargo.toml b/substrate/primitives/core/Cargo.toml
index 85564274b0..1c06163843 100644
--- a/substrate/primitives/core/Cargo.toml
+++ b/substrate/primitives/core/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-core"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,7 +14,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 derive_more = "0.99.2"
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 log = { version = "0.4.8", default-features = false }
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
@@ -33,9 +33,9 @@ num-traits = { version = "0.2.8", default-features = false }
 zeroize = { version = "1.0.0", default-features = false }
 lazy_static = { version = "1.4.0", default-features = false, optional = true }
 parking_lot = { version = "0.10.0", optional = true }
-sp-debug-derive = { version = "2.0.0-rc1", path = "../debug-derive" }
-sp-externalities = { version = "0.8.0-rc1", optional = true, path = "../externalities" }
-sp-storage = { version = "2.0.0-rc1", default-features = false, path = "../storage" }
+sp-debug-derive = { version = "2.0.0-rc2", path = "../debug-derive" }
+sp-externalities = { version = "0.8.0-rc2", optional = true, path = "../externalities" }
+sp-storage = { version = "2.0.0-rc2", default-features = false, path = "../storage" }
 parity-util-mem = { version = "0.6.1", default-features = false, features = ["primitive-types"] }
 futures = { version = "0.3.1", optional = true }
 
@@ -50,10 +50,10 @@ twox-hash = { version = "1.5.0", default-features = false, optional = true }
 libsecp256k1 = { version = "0.3.2", default-features = false, features = ["hmac"], optional = true }
 merlin = { version = "2.0", default-features = false, optional = true }
 
-sp-runtime-interface = { version = "2.0.0-rc1", default-features = false, path = "../runtime-interface" }
+sp-runtime-interface = { version = "2.0.0-rc2", default-features = false, path = "../runtime-interface" }
 
 [dev-dependencies]
-sp-serializer = { version = "2.0.0-rc1", path = "../serializer" }
+sp-serializer = { version = "2.0.0-rc2", path = "../serializer" }
 pretty_assertions = "0.6.1"
 hex-literal = "0.2.1"
 rand = "0.7.2"
diff --git a/substrate/primitives/database/Cargo.toml b/substrate/primitives/database/Cargo.toml
index 5754227632..1899ec850d 100644
--- a/substrate/primitives/database/Cargo.toml
+++ b/substrate/primitives/database/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-database"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/primitives/debug-derive/Cargo.toml b/substrate/primitives/debug-derive/Cargo.toml
index a703dcc5f1..92ba01b23c 100644
--- a/substrate/primitives/debug-derive/Cargo.toml
+++ b/substrate/primitives/debug-derive/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-debug-derive"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/primitives/externalities/Cargo.toml b/substrate/primitives/externalities/Cargo.toml
index 66367b7e79..589c8e625c 100644
--- a/substrate/primitives/externalities/Cargo.toml
+++ b/substrate/primitives/externalities/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-externalities"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 license = "Apache-2.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
@@ -13,7 +13,7 @@ documentation = "https://docs.rs/sp-externalities"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-storage = { version = "2.0.0-rc1", path = "../storage" }
-sp-std = { version = "2.0.0-rc1", path = "../std" }
+sp-storage = { version = "2.0.0-rc2", path = "../storage" }
+sp-std = { version = "2.0.0-rc2", path = "../std" }
 environmental = { version = "1.1.1" }
 codec = { package = "parity-scale-codec", version = "1.3.0" }
diff --git a/substrate/primitives/finality-grandpa/Cargo.toml b/substrate/primitives/finality-grandpa/Cargo.toml
index a4154caac0..83bfca378d 100644
--- a/substrate/primitives/finality-grandpa/Cargo.toml
+++ b/substrate/primitives/finality-grandpa/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-finality-grandpa"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,15 +14,15 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 
 [dependencies]
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../application-crypto" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../application-crypto" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 grandpa = { package = "finality-grandpa", version = "0.12.3", default-features = false, features = ["derive-codec"] }
 log = { version = "0.4.8", optional = true }
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../api" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../core" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../runtime" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../api" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../core" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
 
 [features]
 default = ["std"]
diff --git a/substrate/primitives/finality-tracker/Cargo.toml b/substrate/primitives/finality-tracker/Cargo.toml
index c8e663455d..2f9e377f6b 100644
--- a/substrate/primitives/finality-tracker/Cargo.toml
+++ b/substrate/primitives/finality-tracker/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-finality-tracker"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,8 +13,8 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/inherents" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/inherents" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
 
 [features]
 default = ["std"]
diff --git a/substrate/primitives/inherents/Cargo.toml b/substrate/primitives/inherents/Cargo.toml
index 57434a2a7d..367782ae5b 100644
--- a/substrate/primitives/inherents/Cargo.toml
+++ b/substrate/primitives/inherents/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-inherents"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -15,8 +15,8 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 parking_lot = { version = "0.10.0", optional = true }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../core" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 derive_more = { version = "0.99.2", optional = true }
 
diff --git a/substrate/primitives/io/Cargo.toml b/substrate/primitives/io/Cargo.toml
index ca12371406..6189194ede 100644
--- a/substrate/primitives/io/Cargo.toml
+++ b/substrate/primitives/io/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-io"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -16,14 +16,14 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
 hash-db = { version = "0.15.2", default-features = false }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../core" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
 libsecp256k1 = { version = "0.3.4", optional = true }
-sp-state-machine = { version = "0.8.0-rc1", optional = true, path = "../../primitives/state-machine" }
-sp-wasm-interface = { version = "2.0.0-rc1", path = "../../primitives/wasm-interface", default-features = false }
-sp-runtime-interface = { version = "2.0.0-rc1", default-features = false, path = "../runtime-interface" }
-sp-trie = { version = "2.0.0-rc1", optional = true, path = "../../primitives/trie" }
-sp-externalities = { version = "0.8.0-rc1", optional = true, path = "../externalities" }
+sp-state-machine = { version = "0.8.0-rc2", optional = true, path = "../../primitives/state-machine" }
+sp-wasm-interface = { version = "2.0.0-rc2", path = "../../primitives/wasm-interface", default-features = false }
+sp-runtime-interface = { version = "2.0.0-rc2", default-features = false, path = "../runtime-interface" }
+sp-trie = { version = "2.0.0-rc2", optional = true, path = "../../primitives/trie" }
+sp-externalities = { version = "0.8.0-rc2", optional = true, path = "../externalities" }
 log = { version = "0.4.8", optional = true }
 futures = { version = "0.3.1", features = ["thread-pool"], optional = true }
 parking_lot = { version = "0.10.0", optional = true }
diff --git a/substrate/primitives/keyring/Cargo.toml b/substrate/primitives/keyring/Cargo.toml
index b096e6d6c1..ead618e3fc 100644
--- a/substrate/primitives/keyring/Cargo.toml
+++ b/substrate/primitives/keyring/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-keyring"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,7 +14,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 
 [dependencies]
-sp-core = { version = "2.0.0-rc1", path = "../core" }
-sp-runtime = { version = "2.0.0-rc1", path = "../runtime" }
+sp-core = { version = "2.0.0-rc2", path = "../core" }
+sp-runtime = { version = "2.0.0-rc2", path = "../runtime" }
 lazy_static = "1.4.0"
 strum = { version = "0.16.0", features = ["derive"] }
diff --git a/substrate/primitives/offchain/Cargo.toml b/substrate/primitives/offchain/Cargo.toml
index eb9e319869..2f7246121a 100644
--- a/substrate/primitives/offchain/Cargo.toml
+++ b/substrate/primitives/offchain/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 description = "Substrate offchain workers primitives"
 name = "sp-offchain"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 license = "Apache-2.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
@@ -12,12 +12,12 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../core" }
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../api" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../runtime" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../core" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../api" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../runtime" }
 
 [dev-dependencies]
-sp-state-machine = { version = "0.8.0-rc1", default-features = false, path = "../state-machine" }
+sp-state-machine = { version = "0.8.0-rc2", default-features = false, path = "../state-machine" }
 
 [features]
 default = ["std"]
diff --git a/substrate/primitives/panic-handler/Cargo.toml b/substrate/primitives/panic-handler/Cargo.toml
index 886f979311..75042799b1 100644
--- a/substrate/primitives/panic-handler/Cargo.toml
+++ b/substrate/primitives/panic-handler/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-panic-handler"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/primitives/phragmen/Cargo.toml b/substrate/primitives/phragmen/Cargo.toml
index 021c60325c..d2b8e56dc0 100644
--- a/substrate/primitives/phragmen/Cargo.toml
+++ b/substrate/primitives/phragmen/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-phragmen"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -14,15 +14,15 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.0.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
-sp-phragmen-compact = { version = "2.0.0-rc1", path = "./compact" }
-sp-arithmetic = { version = "2.0.0-rc1", default-features = false, path = "../arithmetic" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
+sp-phragmen-compact = { version = "2.0.0-rc2", path = "./compact" }
+sp-arithmetic = { version = "2.0.0-rc2", default-features = false, path = "../arithmetic" }
 
 [dev-dependencies]
-substrate-test-utils = { version = "2.0.0-rc1", path = "../../test-utils" }
+substrate-test-utils = { version = "2.0.0-rc2", path = "../../test-utils" }
 rand = "0.7.3"
-sp-phragmen = { version = "2.0.0-rc1", path = "." }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
+sp-phragmen = { version = "2.0.0-rc2", path = "." }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
 
 [features]
 default = ["std"]
diff --git a/substrate/primitives/phragmen/compact/Cargo.toml b/substrate/primitives/phragmen/compact/Cargo.toml
index c3f8748a9d..8fb9789d99 100644
--- a/substrate/primitives/phragmen/compact/Cargo.toml
+++ b/substrate/primitives/phragmen/compact/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-phragmen-compact"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/primitives/phragmen/fuzzer/Cargo.lock b/substrate/primitives/phragmen/fuzzer/Cargo.lock
index 19f8114f36..a57bfa3920 100644
--- a/substrate/primitives/phragmen/fuzzer/Cargo.lock
+++ b/substrate/primitives/phragmen/fuzzer/Cargo.lock
@@ -1247,7 +1247,7 @@ dependencies = [
 
 [[package]]
 name = "sp-phragmen-compact"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
diff --git a/substrate/primitives/phragmen/fuzzer/Cargo.toml b/substrate/primitives/phragmen/fuzzer/Cargo.toml
index 82f33c173d..2846841e1c 100644
--- a/substrate/primitives/phragmen/fuzzer/Cargo.toml
+++ b/substrate/primitives/phragmen/fuzzer/Cargo.toml
@@ -14,9 +14,9 @@ publish = false
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-phragmen = { version = "2.0.0-rc1", path = ".." }
-sp-std = { version = "2.0.0-rc1", path = "../../std" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../runtime" }
+sp-phragmen = { version = "2.0.0-rc2", path = ".." }
+sp-std = { version = "2.0.0-rc2", path = "../../std" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../runtime" }
 honggfuzz = "0.5"
 rand = { version = "0.7.3", features = ["std", "small_rng"] }
 
diff --git a/substrate/primitives/rpc/Cargo.toml b/substrate/primitives/rpc/Cargo.toml
index 2b476bd872..a625d4ad71 100644
--- a/substrate/primitives/rpc/Cargo.toml
+++ b/substrate/primitives/rpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-rpc"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,7 +13,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 serde = { version = "1.0.101", features = ["derive"] }
-sp-core = { version = "2.0.0-rc1", path = "../core" }
+sp-core = { version = "2.0.0-rc2", path = "../core" }
 
 [dev-dependencies]
 serde_json = "1.0.41"
diff --git a/substrate/primitives/runtime-interface/Cargo.toml b/substrate/primitives/runtime-interface/Cargo.toml
index 0f78b410e3..a0ff633014 100644
--- a/substrate/primitives/runtime-interface/Cargo.toml
+++ b/substrate/primitives/runtime-interface/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-runtime-interface"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,20 +13,20 @@ documentation = "https://docs.rs/sp-runtime-interface/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-wasm-interface = { version = "2.0.0-rc1", path = "../wasm-interface", default-features = false }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
-sp-tracing = { version = "2.0.0-rc1", default-features = false, path = "../tracing" }
-sp-runtime-interface-proc-macro = { version = "2.0.0-rc1", path = "proc-macro" }
-sp-externalities = { version = "0.8.0-rc1", optional = true, path = "../externalities" }
+sp-wasm-interface = { version = "2.0.0-rc2", path = "../wasm-interface", default-features = false }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
+sp-tracing = { version = "2.0.0-rc2", default-features = false, path = "../tracing" }
+sp-runtime-interface-proc-macro = { version = "2.0.0-rc2", path = "proc-macro" }
+sp-externalities = { version = "0.8.0-rc2", optional = true, path = "../externalities" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
 static_assertions = "1.0.0"
 primitive-types = { version = "0.7.0", default-features = false }
 
 [dev-dependencies]
-sp-runtime-interface-test-wasm = { version = "2.0.0-rc1", path = "test-wasm" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../primitives/state-machine" }
-sp-core = { version = "2.0.0-rc1", path = "../core" }
-sp-io = { version = "2.0.0-rc1", path = "../io" }
+sp-runtime-interface-test-wasm = { version = "2.0.0-rc2", path = "test-wasm" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../primitives/state-machine" }
+sp-core = { version = "2.0.0-rc2", path = "../core" }
+sp-io = { version = "2.0.0-rc2", path = "../io" }
 rustversion = "1.0.0"
 trybuild = "1.0.23"
 
diff --git a/substrate/primitives/runtime-interface/proc-macro/Cargo.toml b/substrate/primitives/runtime-interface/proc-macro/Cargo.toml
index 4ea3fce0be..89d8ddf56b 100644
--- a/substrate/primitives/runtime-interface/proc-macro/Cargo.toml
+++ b/substrate/primitives/runtime-interface/proc-macro/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-runtime-interface-proc-macro"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/primitives/runtime-interface/test-wasm-deprecated/Cargo.toml b/substrate/primitives/runtime-interface/test-wasm-deprecated/Cargo.toml
index 99baf624a5..43a1f8baa9 100644
--- a/substrate/primitives/runtime-interface/test-wasm-deprecated/Cargo.toml
+++ b/substrate/primitives/runtime-interface/test-wasm-deprecated/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-runtime-interface-test-wasm-deprecated"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 build = "build.rs"
@@ -13,10 +13,10 @@ publish = false
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-runtime-interface = { version = "2.0.0-rc1", default-features = false, path = "../" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../io" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../core" }
+sp-runtime-interface = { version = "2.0.0-rc2", default-features = false, path = "../" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../io" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../core" }
 
 [build-dependencies]
 wasm-builder-runner = { version = "1.0.5", package = "substrate-wasm-builder-runner", path = "../../../utils/wasm-builder-runner" }
diff --git a/substrate/primitives/runtime-interface/test-wasm/Cargo.toml b/substrate/primitives/runtime-interface/test-wasm/Cargo.toml
index ce236ae16c..3f99e157ec 100644
--- a/substrate/primitives/runtime-interface/test-wasm/Cargo.toml
+++ b/substrate/primitives/runtime-interface/test-wasm/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-runtime-interface-test-wasm"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 build = "build.rs"
@@ -13,10 +13,10 @@ publish = false
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-runtime-interface = { version = "2.0.0-rc1", default-features = false, path = "../" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../io" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../core" }
+sp-runtime-interface = { version = "2.0.0-rc2", default-features = false, path = "../" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../io" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../core" }
 
 [build-dependencies]
 wasm-builder-runner = { version = "1.0.5", package = "substrate-wasm-builder-runner", path = "../../../utils/wasm-builder-runner" }
diff --git a/substrate/primitives/runtime-interface/test/Cargo.toml b/substrate/primitives/runtime-interface/test/Cargo.toml
index efd474dc93..b281278b5c 100644
--- a/substrate/primitives/runtime-interface/test/Cargo.toml
+++ b/substrate/primitives/runtime-interface/test/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-runtime-interface-test"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,12 +12,12 @@ repository = "https://github.com/paritytech/substrate/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-runtime-interface = { version = "2.0.0-rc1", path = "../" }
-sc-executor = { version = "0.8.0-rc1", path = "../../../client/executor" }
-sp-runtime-interface-test-wasm = { version = "2.0.0-rc1", path = "../test-wasm" }
-sp-runtime-interface-test-wasm-deprecated = { version = "2.0.0-rc1", path = "../test-wasm-deprecated" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../../primitives/state-machine" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../runtime" }
-sp-core = { version = "2.0.0-rc1", path = "../../core" }
-sp-io = { version = "2.0.0-rc1", path = "../../io" }
+sp-runtime-interface = { version = "2.0.0-rc2", path = "../" }
+sc-executor = { version = "0.8.0-rc2", path = "../../../client/executor" }
+sp-runtime-interface-test-wasm = { version = "2.0.0-rc2", path = "../test-wasm" }
+sp-runtime-interface-test-wasm-deprecated = { version = "2.0.0-rc2", path = "../test-wasm-deprecated" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../../primitives/state-machine" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../runtime" }
+sp-core = { version = "2.0.0-rc2", path = "../../core" }
+sp-io = { version = "2.0.0-rc2", path = "../../io" }
 tracing = "0.1.13"
diff --git a/substrate/primitives/runtime/Cargo.toml b/substrate/primitives/runtime/Cargo.toml
index 3c5fdde12b..ae30372b65 100644
--- a/substrate/primitives/runtime/Cargo.toml
+++ b/substrate/primitives/runtime/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-runtime"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -16,23 +16,23 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../core" }
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../application-crypto" }
-sp-arithmetic = { version = "2.0.0-rc1", default-features = false, path = "../arithmetic" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../io" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../core" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../application-crypto" }
+sp-arithmetic = { version = "2.0.0-rc2", default-features = false, path = "../arithmetic" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../io" }
 log = { version = "0.4.8", optional = true }
 paste = "0.1.6"
 rand = { version = "0.7.2", optional = true }
 impl-trait-for-tuples = "0.1.3"
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../inherents" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../inherents" }
 parity-util-mem = { version = "0.6.1", default-features = false, features = ["primitive-types"] }
 hash256-std-hasher = { version = "0.15.2", default-features = false }
 
 [dev-dependencies]
 serde_json = "1.0.41"
 rand = "0.7.2"
-sp-state-machine = { version = "0.8.0-rc1", path = "../../primitives/state-machine" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../primitives/state-machine" }
 
 [features]
 bench = []
diff --git a/substrate/primitives/sandbox/Cargo.toml b/substrate/primitives/sandbox/Cargo.toml
index d5e3113511..522ce1ea62 100755
--- a/substrate/primitives/sandbox/Cargo.toml
+++ b/substrate/primitives/sandbox/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-sandbox"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,10 +13,10 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 wasmi = { version = "0.6.2", optional = true }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../core" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../io" }
-sp-wasm-interface = { version = "2.0.0-rc1", default-features = false, path = "../wasm-interface" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../io" }
+sp-wasm-interface = { version = "2.0.0-rc2", default-features = false, path = "../wasm-interface" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
 
 [dev-dependencies]
diff --git a/substrate/primitives/serializer/Cargo.toml b/substrate/primitives/serializer/Cargo.toml
index ad57cdda4b..4fa0f215d3 100644
--- a/substrate/primitives/serializer/Cargo.toml
+++ b/substrate/primitives/serializer/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-serializer"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/primitives/session/Cargo.toml b/substrate/primitives/session/Cargo.toml
index 656db4ec92..48defdbe64 100644
--- a/substrate/primitives/session/Cargo.toml
+++ b/substrate/primitives/session/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-session"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,11 +13,11 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../api" }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../core" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
-sp-staking = { version = "2.0.0-rc1", default-features = false, path = "../staking" }
-sp-runtime = { version = "2.0.0-rc1", optional = true, path = "../runtime" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../api" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
+sp-staking = { version = "2.0.0-rc2", default-features = false, path = "../staking" }
+sp-runtime = { version = "2.0.0-rc2", optional = true, path = "../runtime" }
 
 [features]
 default = [ "std" ]
diff --git a/substrate/primitives/staking/Cargo.toml b/substrate/primitives/staking/Cargo.toml
index 75fbb0020c..7f6019958c 100644
--- a/substrate/primitives/staking/Cargo.toml
+++ b/substrate/primitives/staking/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-staking"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -13,8 +13,8 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../runtime" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
 
 [features]
 default = ["std"]
diff --git a/substrate/primitives/state-machine/Cargo.toml b/substrate/primitives/state-machine/Cargo.toml
index b8ce048b2e..6a2653bb5b 100644
--- a/substrate/primitives/state-machine/Cargo.toml
+++ b/substrate/primitives/state-machine/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-state-machine"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Substrate State Machine"
 edition = "2018"
@@ -18,17 +18,17 @@ parking_lot = "0.10.0"
 hash-db = "0.15.2"
 trie-db = "0.20.1"
 trie-root = "0.16.0"
-sp-trie = { version = "2.0.0-rc1", path = "../trie" }
-sp-core = { version = "2.0.0-rc1", path = "../core" }
-sp-panic-handler = { version = "2.0.0-rc1", path = "../panic-handler" }
+sp-trie = { version = "2.0.0-rc2", path = "../trie" }
+sp-core = { version = "2.0.0-rc2", path = "../core" }
+sp-panic-handler = { version = "2.0.0-rc2", path = "../panic-handler" }
 codec = { package = "parity-scale-codec", version = "1.3.0" }
 num-traits = "0.2.8"
 rand = "0.7.2"
-sp-externalities = { version = "0.8.0-rc1", path = "../externalities" }
+sp-externalities = { version = "0.8.0-rc2", path = "../externalities" }
 
 [dev-dependencies]
 hex-literal = "0.2.1"
-sp-runtime = { version = "2.0.0-rc1", path = "../runtime" }
+sp-runtime = { version = "2.0.0-rc2", path = "../runtime" }
 
 [features]
 default = []
diff --git a/substrate/primitives/std/Cargo.toml b/substrate/primitives/std/Cargo.toml
index d7ed5615ae..3f08366fa8 100644
--- a/substrate/primitives/std/Cargo.toml
+++ b/substrate/primitives/std/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-std"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/primitives/storage/Cargo.toml b/substrate/primitives/storage/Cargo.toml
index 94db0a4f4d..d0d45649c4 100644
--- a/substrate/primitives/storage/Cargo.toml
+++ b/substrate/primitives/storage/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-storage"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 description = "Storage related primitives"
@@ -13,11 +13,11 @@ documentation = "https://docs.rs/sp-storage/"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
 impl-serde = { version = "0.2.3", optional = true }
 ref-cast = "1.0.0"
-sp-debug-derive = { version = "2.0.0-rc1", path = "../debug-derive" }
+sp-debug-derive = { version = "2.0.0-rc2", path = "../debug-derive" }
 
 [features]
 default = [ "std" ]
diff --git a/substrate/primitives/test-primitives/Cargo.toml b/substrate/primitives/test-primitives/Cargo.toml
index 707b049533..ec050b7428 100644
--- a/substrate/primitives/test-primitives/Cargo.toml
+++ b/substrate/primitives/test-primitives/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-test-primitives"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,11 +12,11 @@ publish = false
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../application-crypto" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../application-crypto" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../core" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../core" }
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../runtime" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../runtime" }
 parity-util-mem = { version = "0.6.1", default-features = false, features = ["primitive-types"] }
 
 [features]
diff --git a/substrate/primitives/timestamp/Cargo.toml b/substrate/primitives/timestamp/Cargo.toml
index 570c878f7d..4e8d2cabcb 100644
--- a/substrate/primitives/timestamp/Cargo.toml
+++ b/substrate/primitives/timestamp/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-timestamp"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,11 +12,11 @@ description = "Substrate core types and inherents for timestamps."
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../api" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../runtime" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../api" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../runtime" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../inherents" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../inherents" }
 impl-trait-for-tuples = "0.1.3"
 wasm-timer = { version = "0.2", optional = true }
 
diff --git a/substrate/primitives/tracing/Cargo.toml b/substrate/primitives/tracing/Cargo.toml
index 13c5d1c25c..213af27572 100644
--- a/substrate/primitives/tracing/Cargo.toml
+++ b/substrate/primitives/tracing/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-tracing"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 license = "Apache-2.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
diff --git a/substrate/primitives/transaction-pool/Cargo.toml b/substrate/primitives/transaction-pool/Cargo.toml
index 312fb71353..dbb21f34b6 100644
--- a/substrate/primitives/transaction-pool/Cargo.toml
+++ b/substrate/primitives/transaction-pool/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-transaction-pool"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -19,9 +19,9 @@ derive_more = { version = "0.99.2", optional = true }
 futures = { version = "0.3.1", optional = true }
 log = { version = "0.4.8", optional = true }
 serde = { version = "1.0.101", features = ["derive"], optional = true}
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../api" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../runtime" }
-sp-utils = { version = "2.0.0-rc1", default-features = false, path = "../utils" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../api" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../runtime" }
+sp-utils = { version = "2.0.0-rc2", default-features = false, path = "../utils" }
 
 [features]
 default = [ "std" ]
diff --git a/substrate/primitives/trie/Cargo.toml b/substrate/primitives/trie/Cargo.toml
index 8eacd4a628..57a2cb59ec 100644
--- a/substrate/primitives/trie/Cargo.toml
+++ b/substrate/primitives/trie/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-trie"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Patricia trie stuff using a parity-scale-codec node format"
 repository = "https://github.com/paritytech/substrate/"
@@ -18,19 +18,19 @@ harness = false
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
 hash-db = { version = "0.15.2", default-features = false }
 trie-db = { version = "0.20.1", default-features = false }
 trie-root = { version = "0.16.0", default-features = false }
 memory-db = { version = "0.20.0", default-features = false }
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../core" }
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../core" }
 
 [dev-dependencies]
 trie-bench = "0.21.0"
 trie-standardmap = "0.15.2"
 criterion = "0.2.11"
 hex-literal = "0.2.1"
-sp-runtime = { version = "2.0.0-rc1", path = "../runtime" }
+sp-runtime = { version = "2.0.0-rc2", path = "../runtime" }
 
 [features]
 default = ["std"]
diff --git a/substrate/primitives/utils/Cargo.toml b/substrate/primitives/utils/Cargo.toml
index 6c5488f389..5f4e6c7181 100644
--- a/substrate/primitives/utils/Cargo.toml
+++ b/substrate/primitives/utils/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-utils"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/primitives/version/Cargo.toml b/substrate/primitives/version/Cargo.toml
index 19a773d306..e442639f87 100644
--- a/substrate/primitives/version/Cargo.toml
+++ b/substrate/primitives/version/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-version"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -17,8 +17,8 @@ targets = ["x86_64-unknown-linux-gnu"]
 impl-serde = { version = "0.2.3", optional = true }
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../std" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../runtime" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../std" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../runtime" }
 
 [features]
 default = ["std"]
diff --git a/substrate/primitives/wasm-interface/Cargo.toml b/substrate/primitives/wasm-interface/Cargo.toml
index d83a586827..dc00ef5ec0 100644
--- a/substrate/primitives/wasm-interface/Cargo.toml
+++ b/substrate/primitives/wasm-interface/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-wasm-interface"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 wasmi = { version = "0.6.2", optional = true }
 impl-trait-for-tuples = "0.1.2"
-sp-std = { version = "2.0.0-rc1", path = "../std", default-features = false }
+sp-std = { version = "2.0.0-rc2", path = "../std", default-features = false }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 
 [features]
diff --git a/substrate/test-utils/Cargo.toml b/substrate/test-utils/Cargo.toml
index 4f6a46e145..0bb1d3026e 100644
--- a/substrate/test-utils/Cargo.toml
+++ b/substrate/test-utils/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "substrate-test-utils"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/test-utils/client/Cargo.toml b/substrate/test-utils/client/Cargo.toml
index ae0dfb3808..a72dced392 100644
--- a/substrate/test-utils/client/Cargo.toml
+++ b/substrate/test-utils/client/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "substrate-test-client"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,17 +12,17 @@ publish = false
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sc-client-api = { version = "2.0.0-rc1", path = "../../client/api" }
-sc-client-db = { version = "0.8.0-rc1", features = ["test-helpers"], path = "../../client/db" }
-sp-consensus = { version = "0.8.0-rc1", path = "../../primitives/consensus/common" }
-sc-executor = { version = "0.8.0-rc1", path = "../../client/executor" }
-sc-consensus = { version = "0.8.0-rc1", path = "../../client/consensus/common" }
-sc-service = { version = "0.8.0-rc1", default-features = false, features = ["test-helpers"],  path = "../../client/service" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../client/api" }
+sc-client-db = { version = "0.8.0-rc2", features = ["test-helpers"], path = "../../client/db" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../primitives/consensus/common" }
+sc-executor = { version = "0.8.0-rc2", path = "../../client/executor" }
+sc-consensus = { version = "0.8.0-rc2", path = "../../client/consensus/common" }
+sc-service = { version = "0.8.0-rc2", default-features = false, features = ["test-helpers"],  path = "../../client/service" }
 futures = "0.3.4"
 hash-db = "0.15.2"
-sp-keyring = { version = "2.0.0-rc1", path = "../../primitives/keyring" }
+sp-keyring = { version = "2.0.0-rc2", path = "../../primitives/keyring" }
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-sp-core = { version = "2.0.0-rc1", path = "../../primitives/core" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../primitives/runtime" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../primitives/blockchain" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../primitives/state-machine" }
+sp-core = { version = "2.0.0-rc2", path = "../../primitives/core" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../primitives/runtime" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../primitives/blockchain" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../primitives/state-machine" }
diff --git a/substrate/test-utils/runtime/Cargo.toml b/substrate/test-utils/runtime/Cargo.toml
index 70e98b2466..cb529e1cb7 100644
--- a/substrate/test-utils/runtime/Cargo.toml
+++ b/substrate/test-utils/runtime/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "substrate-test-runtime"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 build = "build.rs"
@@ -13,35 +13,35 @@ publish = false
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-application-crypto = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/application-crypto" }
-sp-consensus-aura = { version = "0.8.0-rc1", default-features = false, path = "../../primitives/consensus/aura" }
-sp-consensus-babe = { version = "0.8.0-rc1", default-features = false, path = "../../primitives/consensus/babe" }
-sp-block-builder = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/block-builder" }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/application-crypto" }
+sp-consensus-aura = { version = "0.8.0-rc2", default-features = false, path = "../../primitives/consensus/aura" }
+sp-consensus-babe = { version = "0.8.0-rc2", default-features = false, path = "../../primitives/consensus/babe" }
+sp-block-builder = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/block-builder" }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-frame-executive = { version = "2.0.0-rc1", default-features = false, path = "../../frame/executive" }
-sp-inherents = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/inherents" }
-sp-keyring = { version = "2.0.0-rc1", optional = true, path = "../../primitives/keyring" }
+frame-executive = { version = "2.0.0-rc2", default-features = false, path = "../../frame/executive" }
+sp-inherents = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/inherents" }
+sp-keyring = { version = "2.0.0-rc2", optional = true, path = "../../primitives/keyring" }
 memory-db = { version = "0.20.0", default-features = false }
-sp-offchain = { path = "../../primitives/offchain", default-features = false, version = "2.0.0-rc1"}
-sp-core = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/core" }
-sp-std = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/std" }
-sp-runtime-interface = { path = "../../primitives/runtime-interface", default-features = false, version = "2.0.0-rc1"}
-sp-io = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/io" }
-frame-support = { version = "2.0.0-rc1", default-features = false, path = "../../frame/support" }
-sp-version = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/version" }
-sp-session = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/session" }
-sp-api = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/api" }
-sp-runtime = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/runtime" }
-pallet-babe = { version = "2.0.0-rc1", default-features = false, path = "../../frame/babe" }
-frame-system = { version = "2.0.0-rc1", default-features = false, path = "../../frame/system" }
-frame-system-rpc-runtime-api = { version = "2.0.0-rc1", default-features = false, path = "../../frame/system/rpc/runtime-api" }
-pallet-timestamp = { version = "2.0.0-rc1", default-features = false, path = "../../frame/timestamp" }
-sp-finality-grandpa = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/finality-grandpa" }
-sp-trie = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/trie" }
-sp-transaction-pool = { version = "2.0.0-rc1", default-features = false, path = "../../primitives/transaction-pool" }
+sp-offchain = { path = "../../primitives/offchain", default-features = false, version = "2.0.0-rc2"}
+sp-core = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/core" }
+sp-std = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/std" }
+sp-runtime-interface = { path = "../../primitives/runtime-interface", default-features = false, version = "2.0.0-rc2"}
+sp-io = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/io" }
+frame-support = { version = "2.0.0-rc2", default-features = false, path = "../../frame/support" }
+sp-version = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/version" }
+sp-session = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/session" }
+sp-api = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/api" }
+sp-runtime = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/runtime" }
+pallet-babe = { version = "2.0.0-rc2", default-features = false, path = "../../frame/babe" }
+frame-system = { version = "2.0.0-rc2", default-features = false, path = "../../frame/system" }
+frame-system-rpc-runtime-api = { version = "2.0.0-rc2", default-features = false, path = "../../frame/system/rpc/runtime-api" }
+pallet-timestamp = { version = "2.0.0-rc2", default-features = false, path = "../../frame/timestamp" }
+sp-finality-grandpa = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/finality-grandpa" }
+sp-trie = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/trie" }
+sp-transaction-pool = { version = "2.0.0-rc2", default-features = false, path = "../../primitives/transaction-pool" }
 trie-db = { version = "0.20.1", default-features = false }
 parity-util-mem = { version = "0.6.1", default-features = false, features = ["primitive-types"] }
-sc-service = { version = "0.8.0-rc1", default-features = false, optional = true, features = ["test-helpers"], path = "../../client/service" }
+sc-service = { version = "0.8.0-rc2", default-features = false, optional = true, features = ["test-helpers"], path = "../../client/service" }
 
 # 3rd party
 cfg-if = "0.1.10"
@@ -49,10 +49,10 @@ log = { version = "0.4.8", optional = true }
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
 
 [dev-dependencies]
-sc-block-builder = { version = "0.8.0-rc1", path = "../../client/block-builder" }
-sc-executor = { version = "0.8.0-rc1", path = "../../client/executor" }
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "./client" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../primitives/state-machine" }
+sc-block-builder = { version = "0.8.0-rc2", path = "../../client/block-builder" }
+sc-executor = { version = "0.8.0-rc2", path = "../../client/executor" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "./client" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../primitives/state-machine" }
 
 [build-dependencies]
 wasm-builder-runner = { version = "1.0.5", package = "substrate-wasm-builder-runner", path = "../../utils/wasm-builder-runner" }
diff --git a/substrate/test-utils/runtime/client/Cargo.toml b/substrate/test-utils/runtime/client/Cargo.toml
index 388a5e159b..51d89ed95d 100644
--- a/substrate/test-utils/runtime/client/Cargo.toml
+++ b/substrate/test-utils/runtime/client/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "substrate-test-runtime-client"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,16 +12,16 @@ publish = false
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sp-consensus = { version = "0.8.0-rc1", path = "../../../primitives/consensus/common" }
-sc-block-builder = { version = "0.8.0-rc1", path = "../../../client/block-builder" }
-substrate-test-client = { version = "2.0.0-rc1", path = "../../client" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-substrate-test-runtime = { version = "2.0.0-rc1", path = "../../runtime" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-api = { version = "2.0.0-rc1", path = "../../../primitives/api" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
+sp-consensus = { version = "0.8.0-rc2", path = "../../../primitives/consensus/common" }
+sc-block-builder = { version = "0.8.0-rc2", path = "../../../client/block-builder" }
+substrate-test-client = { version = "2.0.0-rc2", path = "../../client" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+substrate-test-runtime = { version = "2.0.0-rc2", path = "../../runtime" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-api = { version = "2.0.0-rc2", path = "../../../primitives/api" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-sc-client-api = { version = "2.0.0-rc1", path = "../../../client/api" }
-sc-consensus = { version = "0.8.0-rc1", path = "../../../client/consensus/common" }
-sc-service = { version = "0.8.0-rc1", default-features = false, path = "../../../client/service" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../../client/api" }
+sc-consensus = { version = "0.8.0-rc2", path = "../../../client/consensus/common" }
+sc-service = { version = "0.8.0-rc2", default-features = false, path = "../../../client/service" }
 futures = "0.3.4"
diff --git a/substrate/test-utils/runtime/transaction-pool/Cargo.toml b/substrate/test-utils/runtime/transaction-pool/Cargo.toml
index a240984883..171e864dc5 100644
--- a/substrate/test-utils/runtime/transaction-pool/Cargo.toml
+++ b/substrate/test-utils/runtime/transaction-pool/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "substrate-test-runtime-transaction-pool"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,12 +12,12 @@ publish = false
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../client" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../client" }
 parking_lot = "0.10.0"
 codec = { package = "parity-scale-codec", version = "1.3.0" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../primitives/blockchain" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../../primitives/transaction-pool" }
-sc-transaction-graph = { version = "2.0.0-rc1", path = "../../../client/transaction-pool/graph" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../primitives/blockchain" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../../primitives/transaction-pool" }
+sc-transaction-graph = { version = "2.0.0-rc2", path = "../../../client/transaction-pool/graph" }
 futures = { version = "0.3.1", features = ["compat"] }
 derive_more = "0.99.2"
diff --git a/substrate/utils/browser/Cargo.toml b/substrate/utils/browser/Cargo.toml
index 6b15cf4346..0850b7b77e 100644
--- a/substrate/utils/browser/Cargo.toml
+++ b/substrate/utils/browser/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "substrate-browser-utils"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Utilities for creating a browser light-client."
 edition = "2018"
@@ -22,11 +22,11 @@ js-sys = "0.3.34"
 wasm-bindgen = "0.2.57"
 wasm-bindgen-futures = "0.4.7"
 kvdb-web = "0.6"
-sp-database = { version = "2.0.0-rc1", path = "../../primitives/database" }
-sc-informant = { version = "0.8.0-rc1", path = "../../client/informant" }
-sc-service = { version = "0.8.0-rc1", path = "../../client/service", default-features = false }
-sc-network = { path = "../../client/network", version = "0.8.0-rc1"}
-sc-chain-spec = { path = "../../client/chain-spec", version = "2.0.0-rc1"}
+sp-database = { version = "2.0.0-rc2", path = "../../primitives/database" }
+sc-informant = { version = "0.8.0-rc2", path = "../../client/informant" }
+sc-service = { version = "0.8.0-rc2", path = "../../client/service", default-features = false }
+sc-network = { path = "../../client/network", version = "0.8.0-rc2"}
+sc-chain-spec = { path = "../../client/chain-spec", version = "2.0.0-rc2"}
 
 # Imported just for the `no_cc` feature
 clear_on_drop = { version = "0.2.3", features = ["no_cc"] }
diff --git a/substrate/utils/build-script-utils/Cargo.toml b/substrate/utils/build-script-utils/Cargo.toml
index 02a5e13c88..8e722d6919 100644
--- a/substrate/utils/build-script-utils/Cargo.toml
+++ b/substrate/utils/build-script-utils/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "substrate-build-script-utils"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/utils/fork-tree/Cargo.toml b/substrate/utils/fork-tree/Cargo.toml
index 357016cd2a..d07afd2d42 100644
--- a/substrate/utils/fork-tree/Cargo.toml
+++ b/substrate/utils/fork-tree/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "fork-tree"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
diff --git a/substrate/utils/frame/benchmarking-cli/Cargo.toml b/substrate/utils/frame/benchmarking-cli/Cargo.toml
index 7a0be9ec55..d9a8dd67e7 100644
--- a/substrate/utils/frame/benchmarking-cli/Cargo.toml
+++ b/substrate/utils/frame/benchmarking-cli/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "frame-benchmarking-cli"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,15 +12,15 @@ description = "CLI for benchmarking FRAME"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-frame-benchmarking = { version = "2.0.0-rc1", path = "../../../frame/benchmarking" }
-sp-core = { version = "2.0.0-rc1", path = "../../../primitives/core" }
-sc-service = { version = "0.8.0-rc1", default-features = false, path = "../../../client/service" }
-sc-cli = { version = "0.8.0-rc1", path = "../../../client/cli" }
-sc-client-db = { version = "0.8.0-rc1", path = "../../../client/db" }
-sc-executor = { version = "0.8.0-rc1", path = "../../../client/executor" }
-sp-externalities = { version = "0.8.0-rc1", path = "../../../primitives/externalities" }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../primitives/runtime" }
-sp-state-machine = { version = "0.8.0-rc1", path = "../../../primitives/state-machine" }
+frame-benchmarking = { version = "2.0.0-rc2", path = "../../../frame/benchmarking" }
+sp-core = { version = "2.0.0-rc2", path = "../../../primitives/core" }
+sc-service = { version = "0.8.0-rc2", default-features = false, path = "../../../client/service" }
+sc-cli = { version = "0.8.0-rc2", path = "../../../client/cli" }
+sc-client-db = { version = "0.8.0-rc2", path = "../../../client/db" }
+sc-executor = { version = "0.8.0-rc2", path = "../../../client/executor" }
+sp-externalities = { version = "0.8.0-rc2", path = "../../../primitives/externalities" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../primitives/runtime" }
+sp-state-machine = { version = "0.8.0-rc2", path = "../../../primitives/state-machine" }
 structopt = "0.3.8"
 codec = { version = "1.3.0", package = "parity-scale-codec" }
 
diff --git a/substrate/utils/frame/rpc/support/Cargo.toml b/substrate/utils/frame/rpc/support/Cargo.toml
index 14cf65742e..006372eb36 100644
--- a/substrate/utils/frame/rpc/support/Cargo.toml
+++ b/substrate/utils/frame/rpc/support/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "substrate-frame-rpc-support"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>", "Andrew Dirksen <andrew@dirksen.com>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -17,10 +17,10 @@ jsonrpc-client-transports = { version = "14.0.5", default-features = false, feat
 jsonrpc-core = "14"
 codec = { package = "parity-scale-codec", version = "1" }
 serde = "1"
-frame-support = { version = "2.0.0-rc1", path = "../../../../frame/support" }
-sp-storage = { version = "2.0.0-rc1", path = "../../../../primitives/storage" }
-sc-rpc-api = { version = "0.8.0-rc1", path = "../../../../client/rpc-api" }
+frame-support = { version = "2.0.0-rc2", path = "../../../../frame/support" }
+sp-storage = { version = "2.0.0-rc2", path = "../../../../primitives/storage" }
+sc-rpc-api = { version = "0.8.0-rc2", path = "../../../../client/rpc-api" }
 
 [dev-dependencies]
-frame-system = { version = "2.0.0-rc1", path = "../../../../frame/system" }
+frame-system = { version = "2.0.0-rc2", path = "../../../../frame/system" }
 tokio = "0.2"
diff --git a/substrate/utils/frame/rpc/system/Cargo.toml b/substrate/utils/frame/rpc/system/Cargo.toml
index ed00809a3b..f757e811fb 100644
--- a/substrate/utils/frame/rpc/system/Cargo.toml
+++ b/substrate/utils/frame/rpc/system/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "substrate-frame-rpc-system"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 license = "Apache-2.0"
@@ -12,7 +12,7 @@ description = "FRAME's system exposed over Substrate RPC"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-sc-client-api = { version = "2.0.0-rc1", path = "../../../../client/api" }
+sc-client-api = { version = "2.0.0-rc2", path = "../../../../client/api" }
 codec = { package = "parity-scale-codec", version = "1.3.0" }
 futures = { version = "0.3.4", features = ["compat"] }
 jsonrpc-core = "14.0.3"
@@ -20,14 +20,14 @@ jsonrpc-core-client = "14.0.5"
 jsonrpc-derive = "14.0.3"
 log = "0.4.8"
 serde = { version = "1.0.101", features = ["derive"] }
-sp-runtime = { version = "2.0.0-rc1", path = "../../../../primitives/runtime" }
-sp-api = { version = "2.0.0-rc1", path = "../../../../primitives/api" }
-frame-system-rpc-runtime-api = { version = "2.0.0-rc1", path = "../../../../frame/system/rpc/runtime-api" }
-sp-core = { version = "2.0.0-rc1", path = "../../../../primitives/core" }
-sp-blockchain = { version = "2.0.0-rc1", path = "../../../../primitives/blockchain" }
-sp-transaction-pool = { version = "2.0.0-rc1", path = "../../../../primitives/transaction-pool" }
+sp-runtime = { version = "2.0.0-rc2", path = "../../../../primitives/runtime" }
+sp-api = { version = "2.0.0-rc2", path = "../../../../primitives/api" }
+frame-system-rpc-runtime-api = { version = "2.0.0-rc2", path = "../../../../frame/system/rpc/runtime-api" }
+sp-core = { version = "2.0.0-rc2", path = "../../../../primitives/core" }
+sp-blockchain = { version = "2.0.0-rc2", path = "../../../../primitives/blockchain" }
+sp-transaction-pool = { version = "2.0.0-rc2", path = "../../../../primitives/transaction-pool" }
 
 [dev-dependencies]
-substrate-test-runtime-client = { version = "2.0.0-rc1", path = "../../../../test-utils/runtime/client" }
+substrate-test-runtime-client = { version = "2.0.0-rc2", path = "../../../../test-utils/runtime/client" }
 env_logger = "0.7.0"
-sc-transaction-pool = { version = "2.0.0-rc1", path = "../../../../client/transaction-pool" }
+sc-transaction-pool = { version = "2.0.0-rc2", path = "../../../../client/transaction-pool" }
diff --git a/substrate/utils/prometheus/Cargo.toml b/substrate/utils/prometheus/Cargo.toml
index 697e186db6..d1f192f7b5 100644
--- a/substrate/utils/prometheus/Cargo.toml
+++ b/substrate/utils/prometheus/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 description = "Endpoint to expose Prometheus metrics"
 name = "substrate-prometheus-endpoint"
-version = "0.8.0-rc1"
+version = "0.8.0-rc2"
 license = "Apache-2.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"