diff --git a/CHANGELOG.md b/CHANGELOG.md
index d2c1316ae5c..0f6e38fc551 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -107,6 +107,7 @@ Docs: https://docs.openclaw.ai
 - Telegram/config schema: accept `channels.telegram.actions.editMessage` and `createForumTopic` in strict config validation so existing Telegram action toggles no longer fail as unrecognized keys. (#35498) Thanks @ingyukoh.
 - Agents/cooldowns: default cooldown windows with no recorded failure history to `unknown` instead of `rate_limit`, avoiding false API rate-limit warnings while preserving cooldown recovery probes. (#42911) Thanks @VibhorGautam.
 - Discord/config typing: expose channel-level `autoThread` on the canonical guild-channel config type so strict config loading matches the existing Discord schema and runtime behavior. (#35608) Thanks @ingyukoh.
+- Agents/error rendering: ignore stale assistant `errorMessage` fields on successful turns so background/tool-side failures no longer prepend synthetic billing errors over valid replies. (#40616) Thanks @ingyukoh.
 
 ## 2026.3.8