You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
ImprovementsKind: in v2.1.323,
ImprovementsSection of the release
What
Artifacts are pieces of content that can have comment threads. When Claude Code reads those comments, it now uses your sign-in to tell which comments you wrote. Threads written by other people are marked as coming from someone else, and those reads are recorded. If your sign-in changes during the read, authorship is marked as unknown.
Before, Claude Code decided this only from the page or a stored list.
Why
This helps Claude Code tell your comments from other people's, so others' comments can be treated as information and not as instructions.