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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.280 ·

Teammate messages can now show sender name and an 'unverified' label

Teammate chat messages, including coalesced groups, now carry the sender's name and whether it's unverified

Group of 2 You'll notice Improvements
JSON All of v2.1.280
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
TeammatesArea: what it touches
ImprovementsKind: in v2.1.280,
ImprovementsSection of the release

What

Messages from teammates now carry more identity information:

  • The sender display label now uses the message's own senderName instead of a fixed display name, and shows an 'unverified' qualifier when the message is flagged as isUnverified.
  • When several consecutive messages from the same display name are grouped ('coalesced') into one entry, that grouped entry now also records the senderName and isUnverified status, not just a message count.

Why

This lets Claude Code show who actually sent a teammate message and flag when its sender couldn't be verified, even when messages are grouped together in the chat.

Read from
Names in the bundleunverified
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 unverified, on Agent SDK reference - TypeScript. | `worktree_unverified` | The session's worktree couldn't be verified right now, and retrying may succeed | agent-sdk/typescript 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 unverified, on Agent SDK reference - TypeScript.

See this entry in the whole of v2.1.280 →

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