You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ConnectorsArea: what it touches
ImprovementsKind: in v2.1.321,
ImprovementsSection of the release
What
When Claude Code uploads a file, one message explains which files are approved on their own. It used to name CSV, Markdown, JSON and plain-text files. It now also names .xlsx, the Excel spreadsheet format. Another upload prompt was reworded to say the destination "decides where to store" the file.
Why
This points to .xlsx files now being supported for uploads to connectors, the links between Claude Code and outside services.