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Sweep 08 Oct 2026 · 18:53Z Build v2.1.295 516 read Stable v2.1.286 Latest v2.1.295 Next v2.1.295 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.290 ·

Saved MCP server details are dropped when the server's settings changed

Claude Code stops reusing saved MCP server details when the server's settings changed, and reloads claude.ai connectors after a policy change

You'll notice Improvements
JSON All of v2.1.290
You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.290,
ImprovementsSection of the release

Unclear It is not clear exactly when each of these checks runs.

What

MCP servers are add-ons that give Claude Code extra tools. Claude Code can save what it learned about a server so it can reuse it later. Two things changed:

  • When Claude Code connects to a server only once it is needed, it now checks whether the server's settings still match the saved copy. If they do not, it ignores the saved copy and clears it.
  • After loading your claude.ai connectors, Claude Code loads them again if the list of servers blocked by your organisation's policy has changed.
Why

After you edit an MCP server's settings, you should no longer see out-of-date tools from the old setup.

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 doubtIt is not clear exactly when each of these checks runs.

See this entry in the whole of v2.1.290 →

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