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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.265 ·

SDK MCP update gains a retry-skip condition tied to a new gate

Claude Code now also skips waiting for an SDK MCP update to finish under an additional internal condition

TierNothing to try yethow much it should matter to you
Useful2my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaMCPwhat it touches
KindIn Developmentin v2.1.265,
Nothing to try yet

Claude Code now also skips waiting for an SDK MCP update to finish under an additional internal condition

What

When Claude Code updates an SDK MCP server (a Model Context Protocol server run through the SDK), it decides whether to wait for that update to finish before continuing, or to let it run in the background. Previously that decision only checked whether a retry had failed. Now it also skips the wait when a second, newly added internal condition is true.

Why

This affects internal timing only; a reader would not see it directly beyond Claude Code potentially proceeding without waiting on an SDK MCP update in more cases than before.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtThe finding does not say what the new condition (`Mp() && !Ji`) represents in user-facing terms.

See this entry in the whole of v2.1.265 →

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