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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 v2.1.281 ·

Agent mailbox: message to an evicted agent is resumed on the resolved task

A message sent to an agent that was evicted is now resumed using the loaded task instead of a value still loading

Entry
JSON All of v2.1.281
EntryKind: in v2.1.281,
ChangesSection of the release
What

Claude Code can run agents, which are separate helper workers, and send them messages through a mailbox. When a message arrives for an agent that has been evicted, meaning unloaded, Claude Code checks whether its task is running and resumes it. Both the check and the resume now use the task after it has finished loading. Before, they used a value that had not finished loading yet.

Why

The running-task check and the resume now work on the real task, so a message to an evicted agent is handled against the correct state.

How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeImproved screen-reader output in /mcp: a disabled server is read as "off" instead of "pending"

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