Support both 2.1 and 2.2 node versions

client/src/main.rs

@@ -197,7 +197,7 @@ async fn run(
 		cfg: (&cfg).into(),
 		identity_cfg: identity_cfg.clone(),
 		version: format!("v{}", clap::crate_version!()),
-		network_version: EXPECTED_SYSTEM_VERSION[0].to_string(),
+		network_version: EXPECTED_SYSTEM_VERSION[1].to_string(),
 		node_client: rpc_client.clone(),
 		ws_clients: ws_clients.clone(),
 		shutdown: shutdown.clone(),

core/src/consts.rs

@@ -2,7 +2,7 @@
 
 /// Expected network Node versions. First version should be the main supported version,
 /// while all subsequent versions should be for backward compatibility/fallback/future-proofing versions.
-pub const EXPECTED_SYSTEM_VERSION: &[&str] = &["2.2"];
+pub const EXPECTED_SYSTEM_VERSION: &[&str] = &["2.1", "2.2"];
 
 #[derive(Clone)]
 pub struct ExpectedNodeVariant {
@@ -13,8 +13,6 @@ impl ExpectedNodeVariant {
 	/// Checks if any of the expected versions matches provided network version.
 	/// Since the light client uses subset of the node APIs, `matches` checks only prefix of a node version.
 	/// This means that if expected version is `1.6`, versions `1.6.x` of the node will match.
-	/// Specification name is checked for exact match.
-	/// Since runtime `spec_version` can be changed with runtime upgrade, `spec_version` is removed.
 	/// NOTE: Runtime compatibility check is currently not implemented.
 	pub fn matches(&self, system_version: &str) -> bool {
 		for supported_network_version in self.system_version {