diff --git a/bin/wasm-node/CHANGELOG.md b/bin/wasm-node/CHANGELOG.md
index 1c11844431..04bdfa66fe 100644
--- a/bin/wasm-node/CHANGELOG.md
+++ b/bin/wasm-node/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 ### Changed
 
+- Chain specifications with a `codeSubstitutes` field containing a block hash are no longer supported ([#2127](https://github.com/paritytech/smoldot/pull/2127)).
 - Prune list of unverified blocks if it grows too much in order to resist spam attacks ([#2114](https://github.com/paritytech/smoldot/pull/2114)).
 - Log block's parent hash in case of block announce ([#2105](https://github.com/paritytech/smoldot/pull/2105)).
 - Only call `console.error` once in case of a Rust panic ([#2093](https://github.com/paritytech/smoldot/pull/2093)).