Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Internal ChangesKind: in v2.1.248,
Internal ChangesSection of the release
What
The per-session git journal gained files marking that a session ended and that it started empty, plus a hook and queue state for recording that a worktree copy was cleared, so an empty directory is no longer ambiguous.
Evidence
markCopyCleared
Strings lifted out of the shipped bundle, so the claim above can be checked against them.