feature: Rename experimental to unstable

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

examples/Cargo.toml

@@ -13,7 +13,7 @@ homepage.workspace = true
 description = "Subxt example usage"
 
 [dev-dependencies]
-subxt = { workspace = true, default-features = false, features = ["default", "experimental-light-client"]}
+subxt = { workspace = true, default-features = false, features = ["default", "unstable-light-client"]}
 tokio = { workspace = true }
 futures = { workspace = true }
 hex = { workspace = true }

subxt/Cargo.toml

@@ -42,7 +42,7 @@ unstable-metadata = []
 
 # Activate this to expose the Light Client functionality.
 # Note that this feature is experimental and things may break or not work as expected.
-experimental-light-client = [
+unstable-light-client = [
     "smoldot-light/std",
     "tokio-stream",
     "tokio/sync",

subxt/src/error/mod.rs

@@ -8,7 +8,7 @@ mod dispatch_error;
 
 use core::fmt::Debug;
 
-#[cfg(feature = "experimental-light-client")]
+#[cfg(feature = "unstable-light-client")]
 pub use crate::rpc::LightClientError;
 
 // Re-export dispatch error types:
@@ -67,7 +67,7 @@ pub enum Error {
     #[error("An error occurred but it could not be decoded: {0:?}")]
     Unknown(Vec<u8>),
     /// Light client error.
-    #[cfg(feature = "experimental-light-client")]
+    #[cfg(feature = "unstable-light-client")]
     #[error("An error occurred but it could not be decoded: {0:?}")]
     LightClient(#[from] LightClientError),
     /// Other error.

subxt/src/rpc/mod.rs

@@ -47,7 +47,7 @@
 #[cfg(feature = "jsonrpsee")]
 mod jsonrpsee_impl;
 
-#[cfg(feature = "experimental-light-client")]
+#[cfg(feature = "unstable-light-client")]
 mod lightclient;
 
 mod rpc;
@@ -66,5 +66,5 @@ pub use rpc_client_t::{
 
 pub use rpc_client::{rpc_params, RpcClient, RpcParams, Subscription};
 
-#[cfg(feature = "experimental-light-client")]
+#[cfg(feature = "unstable-light-client")]
 pub use lightclient::{LightClient, LightClientError};

subxt/src/rpc/types.rs

@@ -509,7 +509,7 @@ pub enum FollowEvent<Hash> {
 #[serde(rename_all = "camelCase")]
 pub struct ChainHeadResult<T> {
     /// Result of the method.
-    #[cfg(not(feature = "experimental-light-client"))]
+    #[cfg(not(feature = "unstable-light-client"))]
     pub result: T,
     /// Result of the method.
     ///
@@ -517,7 +517,7 @@ pub struct ChainHeadResult<T> {
     ///
     /// `chainHead_body` returns a vector of values, while
     /// `chainHead_storage` returns just one plain element.
-    #[cfg(feature = "experimental-light-client")]
+    #[cfg(feature = "unstable-light-client")]
     pub value: T,
 }