diff --git a/CHANGELOG.md b/CHANGELOG.md
index d963c56766b..5d26714fc75 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ Docs: https://docs.openclaw.ai
 - QQBot/media-tags: support HTML entity-encoded angle brackets (`&lt;`/`&gt;`) in media-tag regexes so entity-escaped `<qqimg>` tags from upstream are correctly parsed and normalized. (#60493) Thanks @ylc0919.
 - Slack/media: preserve bearer auth across same-origin `files.slack.com` redirects while still stripping it on cross-origin Slack CDN hops, so `url_private_download` image attachments load again. (#62960) Thanks @vincentkoc.
 - Control UI: guard stale session-history reloads during fast session switches so the selected session and rendered transcript stay in sync. (#62975) Thanks @scoootscooob.
+- Agents/failover: classify Z.ai vendor code `1311` as billing and `1113` as auth, including long wrapped `1311` payloads, so these errors stop falling through to generic failover handling. (#49552) Thanks @1bcMax.
 
 ## 2026.4.8