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Sweep 23 Oct 2026 · 21:48Z Build v2.1.310 529 read Stable v2.1.308 Latest v2.1.310 Next v2.1.310 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.310 ·

Agent summary labels pick their language differently with Haiku

When Haiku writes an agent's summary label, it now uses the task's language instead of the main language of the notes

You'll notice Improvements
JSON All of v2.1.310
You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
SubagentsArea: what it touches
ImprovementsKind: in v2.1.310,
ImprovementsSection of the release
What

Claude Code writes a short label summarising what an agent is doing. When the model writing that summary is Haiku, the label now uses the language of the task. With other models it still uses the predominant language of the notes.

Why

The language a summary label appears in can differ from before when Haiku writes it.

See this entry in the whole of v2.1.310 →

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