You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SessionsArea: what it touches
ImprovementsKind: in v2.1.224,
ImprovementsSection of the release
What
When you reattach to a remote bridge session that no longer exists, Claude Code mints a fresh session instead, and that session is now flagged to skip backfilling history it does not have. The replacement also gets a neutral fallback title rather than inheriting the old one.
Details
The flag is threaded through the transport options, the bridge-session transcript entries, the session-state maps and the clear/save helpers, so it survives save and restore.
Triggered by a reattach-target-gone callback; nothing else in the build sets the flag.
Evidence
noHistoryBackfill
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
