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Sweep 12 Nov 2026 · 23:00Z Build v2.1.323 540 read Stable v2.1.311 Latest v2.1.323 Next v2.1.323 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.323 ·

Remote MCP tool calls can now follow a long-running task

A remote call to an MCP tool can now carry a background task, which Claude Code cancels if it cannot get what it needs to follow it

Under the hood Internal Changes
JSON All of v2.1.323
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
MCPArea: what it touches
Internal ChangesKind: in v2.1.323,
Internal ChangesSection of the release
What

MCP (Model Context Protocol) is the way Claude Code connects to tools from outside services. When such a tool is called remotely, the call can now carry a task that keeps running in the background. Claude Code issues a ticket so the chat can keep following that task. If it cannot get a handle or ticket for the task, it cancels the task. In that case it reports that it could not sign the proof that the chat needs to follow the task.

Why

This prepares remote tool calls to follow MCP tasks that take a long time to finish.

See this entry in the whole of v2.1.323 →

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