You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
ImprovementsKind: in v2.1.269,
ImprovementsSection of the release
What
When uploading a file to a published Artifact (a shareable output like a web app or document), Claude Code normally skips asking for confirmation on each upload. The description of when that confirmation is still required has been expanded: it now explicitly names CSV, Markdown, JSON and plain-text files, rather than the previous generic wording of "text files". Linked files and files outside the current working paths still require approval too.
Why
This makes it clearer exactly which file types will still prompt for approval before being uploaded to an Artifact, rather than leaving it to a vague category.