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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 v2.1.239 ·

Subagents can report that they are blocked

A subagent can now report itself as blocked instead of claiming it succeeded or failed.

You'll notice New Features
JSON All of v2.1.239
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
SubagentsArea: what it touches
New FeaturesKind: in v2.1.239,
What probably matters to youSection of the release
What

The status a subagent reports back to the session that launched it now includes blocked, alongside completed, failed and killed, so a task that is stuck waiting on something can say so instead of being forced to claim success or failure.

Details
  • The change is in the instructions given to the model, in the notification format it fills in for finished tasks.
  • Applies to any session that receives this system prompt section; there is no setting to turn it on or off.
Evidence

<status>completed|failed|killed|blocked</status>

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.239 →

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