Nothing to try yetTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Plan ModeArea: what it touches
In DevelopmentKind: in v2.1.248,
In DevelopmentSection of the release
Only active when the newer storage backend is selected and passed in.
What
Plan files (the saved output of plan mode) can be kept in sync by subscribing to change notifications from Claude Code's newer storage backend instead of re-reading on demand. It only runs when that backend is both selected by an internal check and passed in, so on the older storage path nothing changes.
Details
Per-plan subscription with generation counters, refresh on change events, one automatic resubscribe if the watch ends, release of stale watches, and a cap on how long a read will wait.
If subscribing fails it logs and serves the last value read plus any writes made in this process, so a plan is never unavailable.
The check that selects the newer backend is compiled down to an unnamed predicate, so which flag or setting decides it is not visible in the build.
Evidence
plans: watching
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
