Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.269 ·

rename_session now validates session_id and records host-authored renames

rename_session now checks the session id and logs host-initiated renames separately

TierUnder the hoodhow much it should matter to you
Useful1my rating, 1 to 5
Signal1worth watching, 1 to 5
AreaSDKwhat it touches
KindBug Fixesin v2.1.269,
Under the hood

rename_session now checks the session id and logs host-initiated renames separately

What

The control-channel rename_session request now rejects a rename if the session_id it specifies doesn't match the current session. Separately, when a rename originates from a 'host' source, it's now also recorded and propagated through a new dedicated call, in addition to the existing rename mechanism.

Why

This prevents a session from being renamed by a mismatched request and adds proper tracking for renames initiated by the host application.

Read from
Names in the bundlerename_session
What the documentation says

See this entry in the whole of v2.1.269 →