You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
PermissionsArea: what it touches
ImprovementsKind: in v2.1.259,
ImprovementsSection of the release
A new permission-context snapshot publisher zeroes out session allow-rules and restricts additional working directories to session-sourced ones specifically for background sessions, giving them a narrower permission footprint than foreground sessions. System prompt snapshotting is also now forced on whenever the session kind is bg (CLAUDE_CODE_SESSION_KIND=bg), in addition to being triggered by the existing explicit systemPromptSnapshot flag.