You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Folder TrustArea: what it touches
ImprovementsKind: in v2.1.293,
ImprovementsSection of the release
What
A worktree is a second working folder linked to the same git repository as your main checkout. Claude Code has a new reason to refuse to run in one. If the worktree's .git file leads git to a different repository from the one Claude Code keeps that folder's trust and settings under, Claude Code stops. Trust is your approval to let Claude Code work in a folder. The message tells you to start from the repository's main checkout instead.
Why
This stops a worktree from running under another repository's trust and settings, which could otherwise apply permissions or configuration you never approved for it.