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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.300 ·

Files can be attached as mentions without being typed in the prompt

Claude Code can now attach mentioned files from a supplied list of file paths, not only from @-mentions typed in the prompt

Under the hood Improvements
JSON All of v2.1.300
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
AttachmentsArea: what it touches
ImprovementsKind: in v2.1.300,
ImprovementsSection of the release

Unclear It is not clear what supplies the separate list of file paths, so when this applies to a reader is unsettled.

What

Mentioning a file (for example with @) attaches it to your message. Before this release, Claude Code only looked for these mentions in what you typed. It can now also take them from a separate list of file paths, and it attaches mentioned files even when there is no typed input.

CLAUDE_CODE_DISABLE_FILE_MENTIONS and CLAUDE_CODE_EVAL_CONFINED still apply to these attachments.

Why

Files can now be attached by sources other than your typing. If you have turned file mentions off, that switch still covers this route.

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 supplies the separate list of file paths, so when this applies to a reader is unsettled.

See this entry in the whole of v2.1.300 →

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