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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
HomeReleasesv2.1.248entry #361

Claude Code v2.1.248 ·

MCP server list over the control protocol is trimmed

SDK and IDE clients now only see MCP server names and status, not full config.

You'll notice Improvements
JSON All of v2.1.248
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.248,
ImprovementsSection of the release
What

The MCP server list sent to SDK and IDE clients now contains only each server's name and status. Full server configuration is no longer sent over that channel.

Evidence

mcpServers

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

See this entry in the whole of v2.1.248 →

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