Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
InternalsArea: what it touches
Internal ChangesKind: in v2.1.234,
Internal ChangesSection of the release
What
Session, history, task, debug and file-history cleanup no longer inspect the filesystem directly when the newer storage layer is active; they ask it whether each path is absent, a link, a directory or something else, and fall back to a direct filesystem check only when it has no answer.
Details
The storage handle is now passed through cleanup, plugin caching, CLAUDE.md include checks, MCP client teardown and the resume picker.
Whether the new branch runs is decided by the build-wide storage-v5 check; otherwise the previous filesystem path is used unchanged.
Evidence
fileHistory
Strings lifted out of the shipped bundle, so the claim above can be checked against them.