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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 v2.1.275 ·

MCP call/auth error-handling block heavily refactored (no behavior change found)

MCP call and auth error-handling code was rewritten internally with no behavior change found

Under the hood Internal Changes
JSON All of v2.1.275
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
MCPArea: what it touches
Internal ChangesKind: in v2.1.275,
Internal ChangesSection of the release
What

The internal code handling MCP (Model Context Protocol, used to connect Claude Code to external tools and data) calls, authentication, clearing auth, and applying flag settings was restructured with new variable names throughout. The error messages it produces and the logic for when they occur appear unchanged.

Why

This looks like internal cleanup rather than a change a user would notice.

See this entry in the whole of v2.1.275 →

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