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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.268 ·

@mention file references get a distinct 'not read' rendering

← All of v2.1.268 Home All releases

Files referenced with @-mention but not actually read are now labeled '(not read)'

TierYou'll noticehow much it should matter to you
Useful2my rating, 1 to 5
Signal1worth watching, 1 to 5
AreaElsewherewhat it touches
KindImprovementsin v2.1.268,
You'll notice

Files referenced with @-mention but not actually read are now labeled '(not read)'

What

When a message references a file using an @-mention but that file was never actually read, Claude Code now renders it distinctly as 'Referenced (not read)', listing the mentioned names.

Why

This makes it clear when a file you mentioned wasn't actually opened and read into context, instead of leaving that ambiguous.

Read from
Names in the bundle@mention
Since it was published

The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.

Confirmed since Anthropic's documentation has since written up @mention, on Claude Code in Slack. In Code + Chat routing mode, when you mention @Claude in a Slack channel or thread, Claude automatically detects whether your message is a coding task. Coding tasks go to a Claude Code cloud session. Anything else gets a regular chat reply… slack see the edit
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up @mention, on Claude Code in Slack.

See this entry in the whole of v2.1.268 →

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