diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4d9c3abcf..3b5a4bcce 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -93,6 +93,7 @@ Docs: https://docs.openclaw.ai
 - Slack/Memory: bound thread-starter cache growth with TTL + max-size pruning to prevent long-running Slack gateways from accumulating unbounded thread cache state. (#5258) Thanks @coygeek and @vignesh07.
 - Outbound/Memory: bound directory cache growth with max-size eviction and proactive TTL pruning to prevent long-running gateways from accumulating unbounded directory entries. (#5140) Thanks @coygeek and @vignesh07.
 - Skills/Memory: remove disconnected nodes from remote-skills cache to prevent stale node metadata from accumulating over long uptimes. (#6760) Thanks @coygeek.
+- Gateway/Subagents: preserve queued announce items and summary state on delivery errors, retry failed announce drains, and avoid dropping unsent announcements on timeout/failure. (#16729) Thanks @Clawdette-Workspace.
 - Security/Slack: compute command authorization for DM slash commands even when `dmPolicy=open`, preventing unauthorized users from running privileged commands via DM. Thanks @christos-eth.
 - Security/Nostr: require loopback source and block cross-origin profile mutation/import attempts. Thanks @vincentkoc.
 - Security/Archive: enforce archive extraction entry/size limits to prevent resource exhaustion from high-expansion ZIP/TAR archives. Thanks @vincentkoc.