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Sweep 22 Oct 2026 · 20:42Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.308 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial
Writing the changelog v2.1.309 compose entry prose · 2/5

Claude Code v2.1.299 ·

File uploads now report when they replace an existing file

When an uploaded file replaces an existing one, Claude Code now reports that it was replaced, with the old file's size, age and read-only state

Under the hood Internal Changes
JSON All of v2.1.299
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Cloud SessionsArea: what it touches
Internal ChangesKind: in v2.1.299,
Internal ChangesSection of the release
What

When a file uploaded in stages replaces a file that already existed, the result now tells the part of Claude Code that asked for the upload that a file was replaced. Claude Code's usage reporting also records the replaced file's size, how long ago it was last changed, and whether it was read-only.

Why

Overwriting an existing file during an upload is now visible instead of silent.

See this entry in the whole of v2.1.299 →

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