diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index 05a08c647a..702aa5b139 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -448,7 +448,7 @@ dependencies = [
 [[package]]
 name = "ed25519"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "base58 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "blake2-rfc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -488,7 +488,7 @@ dependencies = [
 [[package]]
 name = "environmental"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 
 [[package]]
 name = "error-chain"
@@ -1979,7 +1979,7 @@ dependencies = [
 [[package]]
 name = "pwasm-alloc"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "pwasm-libc 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
  "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1988,7 +1988,7 @@ dependencies = [
 [[package]]
 name = "pwasm-libc"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 
 [[package]]
 name = "quick-error"
@@ -2488,7 +2488,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "substrate-bft"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "ed25519 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
  "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2507,7 +2507,7 @@ dependencies = [
 [[package]]
 name = "substrate-cli"
 version = "0.3.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "ansi_term 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "app_dirs 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2538,7 +2538,7 @@ dependencies = [
 [[package]]
 name = "substrate-client"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "ed25519 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
  "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2568,7 +2568,7 @@ dependencies = [
 [[package]]
 name = "substrate-client-db"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "hashdb 0.2.1 (git+https://github.com/paritytech/parity-common.git)",
  "kvdb 0.1.0 (git+https://github.com/paritytech/parity-common.git)",
@@ -2590,7 +2590,7 @@ dependencies = [
 [[package]]
 name = "substrate-codec"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2598,7 +2598,7 @@ dependencies = [
 [[package]]
 name = "substrate-codec-derive"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "proc-macro2 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2608,7 +2608,7 @@ dependencies = [
 [[package]]
 name = "substrate-executor"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "byteorder 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "ed25519 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
@@ -2634,7 +2634,7 @@ dependencies = [
 [[package]]
 name = "substrate-extrinsic-pool"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.23 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2649,7 +2649,7 @@ dependencies = [
 [[package]]
 name = "substrate-keyring"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "ed25519 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2659,7 +2659,7 @@ dependencies = [
 [[package]]
 name = "substrate-keystore"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "ed25519 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
  "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2675,7 +2675,7 @@ dependencies = [
 [[package]]
 name = "substrate-network"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "ed25519 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
@@ -2697,7 +2697,7 @@ dependencies = [
 [[package]]
 name = "substrate-network-libp2p"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "bytes 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2720,7 +2720,7 @@ dependencies = [
 [[package]]
 name = "substrate-primitives"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "blake2-rfc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2746,7 +2746,7 @@ dependencies = [
 [[package]]
 name = "substrate-rpc"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 8.0.2 (git+https://github.com/paritytech/jsonrpc.git)",
@@ -2768,7 +2768,7 @@ dependencies = [
 [[package]]
 name = "substrate-rpc-servers"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "jsonrpc-core 8.0.2 (git+https://github.com/paritytech/jsonrpc.git)",
  "jsonrpc-http-server 8.0.1 (git+https://github.com/paritytech/jsonrpc.git)",
@@ -2783,7 +2783,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-balances"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "safe-mix 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2807,7 +2807,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-consensus"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2824,7 +2824,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-council"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "integer-sqrt 0.1.0 (git+https://github.com/paritytech/integer-sqrt-rs.git)",
@@ -2847,7 +2847,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-democracy"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "safe-mix 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2868,7 +2868,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-executive"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2885,7 +2885,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-io"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "ed25519 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
  "environmental 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
@@ -2900,7 +2900,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-primitives"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "integer-sqrt 0.1.0 (git+https://github.com/paritytech/integer-sqrt-rs.git)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2918,7 +2918,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-sandbox"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "substrate-codec 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
@@ -2931,7 +2931,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-session"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "safe-mix 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2953,7 +2953,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-staking"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "safe-mix 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2978,7 +2978,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-std"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "pwasm-alloc 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
  "pwasm-libc 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
@@ -2988,7 +2988,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-support"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "ed25519 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3003,7 +3003,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-system"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "safe-mix 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3021,7 +3021,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-timestamp"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3039,7 +3039,7 @@ dependencies = [
 [[package]]
 name = "substrate-runtime-version"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "serde 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3052,7 +3052,7 @@ dependencies = [
 [[package]]
 name = "substrate-serializer"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "serde 1.0.71 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.26 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3061,7 +3061,7 @@ dependencies = [
 [[package]]
 name = "substrate-service"
 version = "0.3.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "exit-future 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3093,7 +3093,7 @@ dependencies = [
 [[package]]
 name = "substrate-state-db"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "log 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3105,7 +3105,7 @@ dependencies = [
 [[package]]
 name = "substrate-state-machine"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "byteorder 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "hashdb 0.2.1 (git+https://github.com/paritytech/parity-common.git)",
@@ -3123,7 +3123,7 @@ dependencies = [
 [[package]]
 name = "substrate-telemetry"
 version = "0.3.0"
-source = "git+https://github.com/paritytech/substrate?branch=polkadot#f13dfce672731908995ea406e37812aefafe0eea"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/polkadot/api/src/full.rs b/polkadot/api/src/full.rs
index 0c5e5dbc41..a1ec9c2e6e 100644
--- a/polkadot/api/src/full.rs
+++ b/polkadot/api/src/full.rs
@@ -166,7 +166,7 @@ impl<B: LocalBackend<Block, KeccakHasher, RlpCodec>> PolkadotApi for Client<B, L
 		let runtime_version = self.runtime_version_at(at)?;
 
 		with_runtime!(self, at, || {
-			let extrinsics = ::runtime::inherent_extrinsics(inherent_data, runtime_version);
+			let extrinsics = ::runtime::inherent_extrinsics(inherent_data, runtime_version.spec_version);
 			extrinsics.into_iter()
 				.map(|x| x.encode()) // get encoded representation
 				.map(|x| Decode::decode(&mut &x[..])) // get byte-vec equivalent to extrinsic
@@ -209,10 +209,10 @@ mod tests {
 				authorities: session_keys(),
 			}),
 			system: None,
+			balances: Some(Default::default()),
 			session: Some(SessionConfig {
 				validators: validators(),
 				session_length: 100,
-				broken_percent_late: 100,
 			}),
 			council: Some(Default::default()),
 			democracy: Some(Default::default()),
diff --git a/polkadot/parachain/tests/res/adder.wasm b/polkadot/parachain/tests/res/adder.wasm
index caf9ca5ae0..77d5b37e72 100644
Binary files a/polkadot/parachain/tests/res/adder.wasm and b/polkadot/parachain/tests/res/adder.wasm differ
diff --git a/polkadot/runtime/src/lib.rs b/polkadot/runtime/src/lib.rs
index 888d1d6a3f..c277374d03 100644
--- a/polkadot/runtime/src/lib.rs
+++ b/polkadot/runtime/src/lib.rs
@@ -255,7 +255,7 @@ impl_outer_config! {
 	pub struct GenesisConfig for Concrete {
 		ConsensusConfig => consensus,
 		SystemConfig => system,
-		BaalncesConfig => balances,
+		BalancesConfig => balances,
 		SessionConfig => session,
 		StakingConfig => staking,
 		DemocracyConfig => democracy,
@@ -273,7 +273,7 @@ pub mod api {
 		apply_extrinsic => |extrinsic| super::Executive::apply_extrinsic(extrinsic),
 		execute_block => |block| super::Executive::execute_block(block),
 		finalise_block => |()| super::Executive::finalise_block(),
-		inherent_extrinsics => |(inherent, version)| super::inherent_extrinsics(inherent, version),
+		inherent_extrinsics => |(inherent, spec_version)| super::inherent_extrinsics(inherent, spec_version),
 		validator_count => |()| super::Session::validator_count(),
 		validators => |()| super::Session::validators()
 	);
diff --git a/polkadot/runtime/src/parachains.rs b/polkadot/runtime/src/parachains.rs
index 528b85b01e..3dc4813bbd 100644
--- a/polkadot/runtime/src/parachains.rs
+++ b/polkadot/runtime/src/parachains.rs
@@ -258,7 +258,9 @@ mod tests {
 		type PublicAux = u64;
 	}
 	impl consensus::Trait for Test {
+		const NOTE_OFFLINE_POSITION: u32 = 1;
 		type SessionKey = u64;
+		type OnOfflineValidator = ();
 	}
 	impl system::Trait for Test {
 		type PublicAux = <Self as HasPublicAux>::PublicAux;
@@ -269,11 +271,12 @@ mod tests {
 		type Digest = Digest;
 		type AccountId = u64;
 		type Header = Header;
+		type Event = ();
 	}
 	impl session::Trait for Test {
-		const NOTE_OFFLINE_POSITION: u32 = 1;
 		type ConvertAccountIdToSessionKey = Identity;
 		type OnSessionChange = ();
+		type Event = ();
 	}
 	impl timestamp::Trait for Test {
 		const TIMESTAMP_SET_POSITION: u32 = 0;
@@ -296,7 +299,6 @@ mod tests {
 		t.extend(session::GenesisConfig::<Test>{
 			session_length: 1000,
 			validators: vec![1, 2, 3, 4, 5, 6, 7, 8],
-			broken_percent_late: 100,
 		}.build_storage().unwrap());
 		t.extend(GenesisConfig::<Test>{
 			parachains: parachains,
diff --git a/polkadot/runtime/src/utils.rs b/polkadot/runtime/src/utils.rs
index 426e8c5228..95cead3014 100644
--- a/polkadot/runtime/src/utils.rs
+++ b/polkadot/runtime/src/utils.rs
@@ -22,10 +22,9 @@ use runtime_primitives::traits::{Checkable, AuxLookup};
 use timestamp::Call as TimestampCall;
 use parachains::Call as ParachainsCall;
 use consensus::Call as ConsensusCall;
-use version::RuntimeVersion;
 
 /// Produces the list of inherent extrinsics.
-pub fn inherent_extrinsics(data: ::primitives::InherentData, runtime_version: RuntimeVersion) -> Vec<UncheckedExtrinsic> {
+pub fn inherent_extrinsics(data: ::primitives::InherentData, spec_version: u32) -> Vec<UncheckedExtrinsic> {
 	let make_inherent = |function| UncheckedExtrinsic::new(
 		Extrinsic {
 			signed: Default::default(),
@@ -40,7 +39,7 @@ pub fn inherent_extrinsics(data: ::primitives::InherentData, runtime_version: Ru
 		make_inherent(Call::Parachains(ParachainsCall::set_heads(data.parachain_heads))),
 	];
 
-	if !data.offline_indices.is_empty() && runtime_version.spec_version == 4 {
+	if !data.offline_indices.is_empty() && spec_version == 4 {
 		inherent.push(make_inherent(
 			Call::Consensus(ConsensusCall::note_offline(data.offline_indices))
 		));
diff --git a/polkadot/runtime/wasm/Cargo.lock b/polkadot/runtime/wasm/Cargo.lock
index 76780437bc..2288217721 100644
--- a/polkadot/runtime/wasm/Cargo.lock
+++ b/polkadot/runtime/wasm/Cargo.lock
@@ -13,7 +13,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bitflags"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -27,19 +27,22 @@ dependencies = [
 
 [[package]]
 name = "byteorder"
-version = "1.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "cc"
-version = "1.0.17"
+version = "1.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cfg-if"
-version = "0.1.3"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "cloudabi"
+version = "0.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "constant_time_eq"
 version = "0.1.3"
@@ -60,9 +63,9 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "nodrop 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -73,7 +76,7 @@ name = "crossbeam-utils"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -84,13 +87,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "ed25519"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate#54e6d763a5d091ca1c41f431f8c7e76c384263d5"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "base58 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "blake2-rfc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ring 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "substrate-primitives 0.1.0 (git+https://github.com/paritytech/substrate)",
+ "substrate-primitives 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
  "untrusted 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -105,7 +108,7 @@ dependencies = [
 [[package]]
 name = "environmental"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate#54e6d763a5d091ca1c41f431f8c7e76c384263d5"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 
 [[package]]
 name = "ethbloom"
@@ -114,8 +117,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethereum-types-serialize 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "fixed-hash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fixed-hash 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
  "tiny-keccak 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -127,48 +130,61 @@ dependencies = [
  "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethbloom 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethereum-types-serialize 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "fixed-hash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc_version 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fixed-hash 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
  "uint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "ethereum-types"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethbloom 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types-serialize 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fixed-hash 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
+ "uint 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ethereum-types-serialize"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "fixed-hash"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "fixed-hash"
 version = "0.2.2"
-source = "git+https://github.com/paritytech/parity-common#26baede0d9cd8cdad3511d75408228051dbc23dd"
+source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "fixed-hash"
+version = "0.2.3"
+source = "git+https://github.com/paritytech/parity-common#51258799ee639783a7153d807ce9ddf4d49b29fa"
+dependencies = [
+ "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-hex 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "fuchsia-zircon"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -185,7 +201,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "hashdb"
 version = "0.2.1"
-source = "git+https://github.com/paritytech/parity-common#26baede0d9cd8cdad3511d75408228051dbc23dd"
+source = "git+https://github.com/paritytech/parity-common#51258799ee639783a7153d807ce9ddf4d49b29fa"
 dependencies = [
  "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -195,7 +211,7 @@ name = "heapsize"
 version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -222,11 +238,10 @@ source = "git+https://github.com/paritytech/integer-sqrt-rs.git#886e9cb983c46498
 
 [[package]]
 name = "keccak-hash"
-version = "0.1.1"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "tiny-keccak 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -237,12 +252,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "lazy_static"
-version = "1.0.1"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "version_check 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "libc"
-version = "0.2.41"
+version = "0.2.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -250,15 +268,15 @@ name = "log"
 version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "log"
-version = "0.4.1"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -274,13 +292,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "memorydb"
 version = "0.2.1"
-source = "git+https://github.com/paritytech/parity-common#26baede0d9cd8cdad3511d75408228051dbc23dd"
+source = "git+https://github.com/paritytech/parity-common#51258799ee639783a7153d807ce9ddf4d49b29fa"
 dependencies = [
  "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "hashdb 0.2.1 (git+https://github.com/paritytech/parity-common)",
  "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "plain_hasher 0.2.0 (git+https://github.com/paritytech/parity-common)",
- "rlp 0.2.1 (git+https://github.com/paritytech/parity-common)",
+ "rlp 0.2.2 (git+https://github.com/paritytech/parity-common)",
 ]
 
 [[package]]
@@ -295,7 +313,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "num-traits"
-version = "0.2.4"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -303,7 +321,7 @@ name = "num_cpus"
 version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -311,20 +329,20 @@ name = "owning_ref"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "stable_deref_trait 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "parity-bytes"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/parity-common#26baede0d9cd8cdad3511d75408228051dbc23dd"
+source = "git+https://github.com/paritytech/parity-common#51258799ee639783a7153d807ce9ddf4d49b29fa"
 
 [[package]]
 name = "parity-wasm"
-version = "0.31.0"
+version = "0.31.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "byteorder 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -341,28 +359,28 @@ name = "parking_lot_core"
 version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "patricia-trie"
 version = "0.2.1"
-source = "git+https://github.com/paritytech/parity-common#26baede0d9cd8cdad3511d75408228051dbc23dd"
+source = "git+https://github.com/paritytech/parity-common#51258799ee639783a7153d807ce9ddf4d49b29fa"
 dependencies = [
  "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "hashdb 0.2.1 (git+https://github.com/paritytech/parity-common)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-bytes 0.1.0 (git+https://github.com/paritytech/parity-common)",
- "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "plain_hasher"
 version = "0.2.0"
-source = "git+https://github.com/paritytech/parity-common#26baede0d9cd8cdad3511d75408228051dbc23dd"
+source = "git+https://github.com/paritytech/parity-common#51258799ee639783a7153d807ce9ddf4d49b29fa"
 dependencies = [
  "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -371,13 +389,13 @@ dependencies = [
 name = "polkadot-primitives"
 version = "0.1.0"
 dependencies = [
- "serde 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
- "substrate-codec 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-codec-derive 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-primitives 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-primitives 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-std 0.1.0 (git+https://github.com/paritytech/substrate)",
+ "serde 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
+ "substrate-codec 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-codec-derive 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-primitives 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-primitives 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-std 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
 ]
 
 [[package]]
@@ -387,21 +405,23 @@ dependencies = [
  "integer-sqrt 0.1.0 (git+https://github.com/paritytech/integer-sqrt-rs.git)",
  "polkadot-primitives 0.1.0",
  "safe-mix 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "substrate-codec 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-primitives 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-consensus 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-council 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-democracy 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-executive 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-io 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-primitives 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-session 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-staking 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-std 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-support 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-system 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-timestamp 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-version 0.1.0 (git+https://github.com/paritytech/substrate)",
+ "substrate-codec 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-codec-derive 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-primitives 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-balances 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-consensus 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-council 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-democracy 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-executive 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-io 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-primitives 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-session 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-staking 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-std 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-support 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-system 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-timestamp 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-version 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
 ]
 
 [[package]]
@@ -419,7 +439,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "proc-macro2"
-version = "0.4.4"
+version = "0.4.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -428,63 +448,69 @@ dependencies = [
 [[package]]
 name = "pwasm-alloc"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate#54e6d763a5d091ca1c41f431f8c7e76c384263d5"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
- "pwasm-libc 0.1.0 (git+https://github.com/paritytech/substrate)",
- "rustc_version 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pwasm-libc 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "pwasm-libc"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate#54e6d763a5d091ca1c41f431f8c7e76c384263d5"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 
 [[package]]
 name = "quote"
-version = "0.6.3"
+version = "0.6.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rand"
-version = "0.3.22"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rand"
-version = "0.4.2"
+version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "rand_core"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "rayon"
 version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "rayon-core 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon-core 1.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rayon-core"
-version = "1.4.0"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -494,31 +520,31 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "gcc 0.3.54 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "untrusted 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rlp"
-version = "0.2.1"
-source = "git+https://github.com/paritytech/parity-common#26baede0d9cd8cdad3511d75408228051dbc23dd"
+version = "0.2.2"
+source = "git+https://github.com/paritytech/parity-common#51258799ee639783a7153d807ce9ddf4d49b29fa"
 dependencies = [
- "byteorder 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-hex 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rlp"
-version = "0.2.2"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "byteorder 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-hex 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -528,12 +554,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "rustc-hex"
-version = "2.0.0"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "rustc_version"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -544,7 +570,7 @@ name = "safe-mix"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "rustc_version 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -567,22 +593,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "1.0.64"
+version = "1.0.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde_derive"
-version = "1.0.64"
+version = "1.0.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.14.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "smallvec"
-version = "0.6.4"
+version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -590,13 +616,13 @@ dependencies = [
 
 [[package]]
 name = "stable_deref_trait"
-version = "1.0.0"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "substrate-codec"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate#54e6d763a5d091ca1c41f431f8c7e76c384263d5"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -604,297 +630,324 @@ dependencies = [
 [[package]]
 name = "substrate-codec-derive"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate#54e6d763a5d091ca1c41f431f8c7e76c384263d5"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
- "proc-macro2 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.14.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "substrate-keyring"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate#54e6d763a5d091ca1c41f431f8c7e76c384263d5"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
- "ed25519 0.1.0 (git+https://github.com/paritytech/substrate)",
+ "ed25519 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "substrate-primitives"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate#54e6d763a5d091ca1c41f431f8c7e76c384263d5"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "blake2-rfc 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "byteorder 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "fixed-hash 0.2.2 (git+https://github.com/paritytech/parity-common)",
+ "fixed-hash 0.2.3 (git+https://github.com/paritytech/parity-common)",
  "hashdb 0.2.1 (git+https://github.com/paritytech/parity-common)",
  "patricia-trie 0.2.1 (git+https://github.com/paritytech/parity-common)",
  "plain_hasher 0.2.0 (git+https://github.com/paritytech/parity-common)",
- "rlp 0.2.1 (git+https://github.com/paritytech/parity-common)",
- "rustc-hex 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
- "substrate-codec 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-codec-derive 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-runtime-std 0.1.0 (git+https://github.com/paritytech/substrate)",
+ "rlp 0.2.2 (git+https://github.com/paritytech/parity-common)",
+ "rustc-hex 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
+ "substrate-codec 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-codec-derive 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-std 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
  "tiny-keccak 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "twox-hash 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "uint 0.2.2 (git+https://github.com/paritytech/parity-common)",
+ "twox-hash 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "uint 0.4.1 (git+https://github.com/paritytech/parity-common)",
  "wasmi 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "substrate-runtime-balances"
+version = "0.1.0"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
+dependencies = [
+ "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "safe-mix 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.75 (registry+https://github.com/rust-lang/crates.io-index)",
+ "substrate-codec 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-codec-derive 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-keyring 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-primitives 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-consensus 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-io 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-primitives 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-sandbox 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-session 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-std 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-support 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-system 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+ "substrate-runtime-timestamp 0.1.0 (git+https://github.com/paritytech/substrate?branch=polkadot)",
+]
+
 [[package]]
 name = "substrate-runtime-consensus"
 version = "0.1.0"
-source = "git+https://github.com/paritytech/substrate#54e6d763a5d091ca1c41f431f8c7e76c384263d5"
+source = "git+https://github.com/paritytech/substrate?branch=polkadot#f074c15cae617ed1734efda5308e4753d79d9006"
 dependencies = [
  "hex-literal 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.64 (registry+https://github.com/rust-lang/crates.io-index)",
- "substrate-codec 0.1.0 (git+https://github.com/paritytech/substrate)",
- "substrate-primitives 0.1.0 (git+https://github.com/paritytech/substrate)",
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diff --git a/polkadot/runtime/wasm/Cargo.toml b/polkadot/runtime/wasm/Cargo.toml
index e583b12e21..524d789cae 100644
--- a/polkadot/runtime/wasm/Cargo.toml
+++ b/polkadot/runtime/wasm/Cargo.toml
@@ -11,10 +11,12 @@ integer-sqrt = { git = "https://github.com/paritytech/integer-sqrt-rs.git", bran
 polkadot-primitives = { path = "../../primitives", default-features = false }
 safe-mix = { version = "1.0", default-features = false }
 substrate-codec = { git = "https://github.com/paritytech/substrate", branch = "polkadot", default-features = false }
+substrate-codec-derive = { git = "https://github.com/paritytech/substrate", branch = "polkadot", default-features = false }
 substrate-primitives = { git = "https://github.com/paritytech/substrate", branch = "polkadot", default-features = false }
 substrate-runtime-std = { git = "https://github.com/paritytech/substrate", branch = "polkadot", default-features = false }
 substrate-runtime-io = { git = "https://github.com/paritytech/substrate", branch = "polkadot", default-features = false }
 substrate-runtime-support = { git = "https://github.com/paritytech/substrate", branch = "polkadot", default-features = false }
+substrate-runtime-balances = { git = "https://github.com/paritytech/substrate", branch = "polkadot", default-features = false }
 substrate-runtime-consensus = { git = "https://github.com/paritytech/substrate", branch = "polkadot", default-features = false }
 substrate-runtime-council = { git = "https://github.com/paritytech/substrate", branch = "polkadot", default-features = false }
 substrate-runtime-democracy = { git = "https://github.com/paritytech/substrate", branch = "polkadot", default-features = false }
@@ -32,10 +34,12 @@ std = [
 	"polkadot-primitives/std",
 	"safe-mix/std",
 	"substrate-codec/std",
+	"substrate-codec-derive/std",
 	"substrate-primitives/std",
 	"substrate-runtime-std/std",
 	"substrate-runtime-io/std",
 	"substrate-runtime-support/std",
+	"substrate-runtime-balances/std",
 	"substrate-runtime-consensus/std",
 	"substrate-runtime-council/std",
 	"substrate-runtime-democracy/std",
diff --git a/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm b/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm
index 5473a9a11b..b416119590 100644
Binary files a/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm and b/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.compact.wasm differ
diff --git a/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm b/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm
index 2339f1b2a2..aa8241e9a5 100755
Binary files a/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm and b/polkadot/runtime/wasm/target/wasm32-unknown-unknown/release/polkadot_runtime.wasm differ
diff --git a/polkadot/service/src/chain_spec.rs b/polkadot/service/src/chain_spec.rs
index 85ecbe5196..1cd8886f53 100644
--- a/polkadot/service/src/chain_spec.rs
+++ b/polkadot/service/src/chain_spec.rs
@@ -19,7 +19,7 @@
 use ed25519;
 use primitives::AuthorityId;
 use polkadot_runtime::{GenesisConfig, ConsensusConfig, CouncilConfig, DemocracyConfig,
-	SessionConfig, StakingConfig, TimestampConfig};
+	SessionConfig, StakingConfig, TimestampConfig, BalancesConfig};
 use service::ChainSpec;
 
 const STAGING_TELEMETRY_URL: &str = "wss://telemetry.polkadot.io/submit/";
@@ -44,26 +44,29 @@ fn staging_testnet_config_genesis() -> GenesisConfig {
 			authorities: initial_authorities.clone(),
 		}),
 		system: None,
-		session: Some(SessionConfig {
-			validators: initial_authorities.iter().cloned().map(Into::into).collect(),
-			session_length: 60,	// that's 5 minutes per session.
-			broken_percent_late: 50,
-		}),
-		staking: Some(StakingConfig {
-			current_era: 0,
-			intentions: initial_authorities.iter().cloned().map(Into::into).collect(),
+		balances: Some(BalancesConfig {
 			transaction_base_fee: 100,
 			transaction_byte_fee: 1,
 			existential_deposit: 500,
 			transfer_fee: 0,
 			creation_fee: 0,
 			reclaim_rebate: 0,
+			balances: endowed_accounts.iter().map(|&k|(k, 1u128 << 60)).collect(),
+		}),
+		session: Some(SessionConfig {
+			validators: initial_authorities.iter().cloned().map(Into::into).collect(),
+			session_length: 60,	// that's 5 minutes per session.
+		}),
+		staking: Some(StakingConfig {
+			current_era: 0,
+			intentions: initial_authorities.iter().cloned().map(Into::into).collect(),
 			early_era_slash: 10000,
 			session_reward: 100,
-			balances: endowed_accounts.iter().map(|&k|(k, 1u128 << 60)).collect(),
 			validator_count: 12,
 			sessions_per_era: 12,	// 1 hour per era
 			bonding_duration: 24 * 60 * 12,	// 1 day per bond.
+			offline_slash_grace: 4,
+			minimum_validator_count: 4,
 		}),
 		democracy: Some(DemocracyConfig {
 			launch_period: 12 * 60 * 24,	// 1 day per public referendum
@@ -119,14 +122,7 @@ fn testnet_genesis(initial_authorities: Vec<AuthorityId>) -> GenesisConfig {
 			authorities: initial_authorities.clone(),
 		}),
 		system: None,
-		session: Some(SessionConfig {
-			validators: initial_authorities.iter().cloned().map(Into::into).collect(),
-			session_length: 10,
-			broken_percent_late: 30,
-		}),
-		staking: Some(StakingConfig {
-			current_era: 0,
-			intentions: initial_authorities.iter().cloned().map(Into::into).collect(),
+		balances: Some(BalancesConfig {
 			transaction_base_fee: 1,
 			transaction_byte_fee: 0,
 			existential_deposit: 500,
@@ -134,11 +130,21 @@ fn testnet_genesis(initial_authorities: Vec<AuthorityId>) -> GenesisConfig {
 			creation_fee: 0,
 			reclaim_rebate: 0,
 			balances: endowed_accounts.iter().map(|&k|(k, (1u128 << 60))).collect(),
+		}),
+		session: Some(SessionConfig {
+			validators: initial_authorities.iter().cloned().map(Into::into).collect(),
+			session_length: 10,
+		}),
+		staking: Some(StakingConfig {
+			current_era: 0,
+			intentions: initial_authorities.iter().cloned().map(Into::into).collect(),
+			minimum_validator_count: 1,
 			validator_count: 2,
 			sessions_per_era: 5,
 			bonding_duration: 2 * 60 * 12,
 			early_era_slash: 0,
 			session_reward: 0,
+			offline_slash_grace: 0,
 		}),
 		democracy: Some(DemocracyConfig {
 			launch_period: 9,