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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.299 ·

Project document edits can carry a version check

In some cases Claude is told to pass back a document's version as if_version when saving a project document

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JSON All of v2.1.299
Nothing to try yetTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
ProjectsArea: what it touches
In DevelopmentKind: in v2.1.299,
In DevelopmentSection of the release

Unclear It is not clear what switches on these version-check instructions.

What

When a certain setting is on, the instructions for the Projects tool tell Claude to take the version it got when reading a project document and pass it back as if_version when writing the document. Before, the instructions only said to write the full content back.

Why

A version check like this lets a save be refused if the document changed since Claude read it, instead of overwriting someone else's edit.

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Names in the bundleif_version
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not clear what switches on these version-check instructions.

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