diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8ebcd638..6d8ddd75 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,12 @@
 
 ## [Unreleased]
 
+## [v0.51.653] — 2026-06-25 — Release XI (gateway approval failures stay actionable instead of dead-ending)
+
+### Fixed
+
+- **In gateway-backed sessions, an approval card no longer disappears when the backend can't relay your approve/deny click.** Previously the WebUI cleared the approval card as soon as you clicked, before knowing whether the backend actually relayed the response to the gateway run — so if the relay failed, the card vanished and the run was left blocked with no way to respond. Now `/api/approval/respond` returns an explicit relay-failure error and preserves the pending state, and the card stays visible and actionable (with the error surfaced) until the backend confirms acceptance. Re-renders and Enter no longer re-enable or duplicate-submit an in-flight approval. Thanks @rodboev. (#4917, closes #4771)
+
 ## [v0.51.652] — 2026-06-25 — Release XH (background subagent results return to chat)
 
 ### Fixed