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Sweep 28 Sep 2026 · 18:16Z Build v2.1.284 505 read Stable v2.1.277 Latest v2.1.284 Next v2.1.284 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.280 ·

Direct-upload API gains a create-only / conflict mode

Direct-upload API gains a createOnly mode that reports a conflict instead of overwriting

Under the hood Internal Changes
JSON All of v2.1.280
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Directory SyncArea: what it touches
Internal ChangesKind: in v2.1.280,
Internal ChangesSection of the release
What

The low-level direct-upload function used by directory sync now accepts a createOnly option, which defaults to false. When set and a remote download already exists at the target location, the function returns a conflict result instead of overwriting it.

Why

This lets callers opt into a safer create-only upload that won't silently overwrite existing remote content, surfacing a conflict instead.

See this entry in the whole of v2.1.280 →

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