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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 v2.1.221 ·

MCP teardown handles cached clients, not just connected ones

Cached MCP server connections are now cleaned up properly instead of being skipped.

Under the hood Bug Fixes
JSON All of v2.1.221
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
MCPArea: what it touches
Bug FixesKind: in v2.1.221,
Bug FixesSection of the release
What

Cleanup paths that previously ignored cache-backed clients now run against them too, so cached server state is properly cleared.

Details
  • The three disconnect/cleanup paths in the MCP store moved from type === "connected" checks to a helper matching e.type === "connected" || e.type === "cached".
  • clearServerCache now runs for cached entries as well.
  • Entries that match neither type are skipped early.
Evidence

clearServerCache

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

See this entry in the whole of v2.1.221 →

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