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Sweep 06 Nov 2026 · 01:32Z Build v2.1.319 537 read Stable v2.1.311 Latest v2.1.318 Next v2.1.319 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.261 ·

New mcp_set_servers binding-changed sync hook

MCP server config changes now trigger sync hooks to keep SDK hosts' binding state in sync.

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JSON All of v2.1.261
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MCPArea: what it touches
Internal ChangesKind: in v2.1.261,
Internal ChangesSection of the release

The control-request handler for mcp_set_servers now calls a .sync("binding_changed") hook before applying server config changes, with a .sync("startup") hook invoked earlier during session init. This appears to be new plumbing for keeping an SDK host's server-binding state in sync with dynamic MCP server updates.

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Names in the bundlemcp_set_servers

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