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Sweep 27 Oct 2026 · 19:04Z Build v2.1.312 531 read Stable v2.1.308 Latest v2.1.312 Next v2.1.312 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.311 ·

MCP server errors no longer repeat the server name

When an MCP server error already starts with the server's name, Claude Code no longer adds the name again

You'll notice Bug Fixes
JSON All of v2.1.311
You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
MCPArea: what it touches
Bug FixesKind: in v2.1.311,
Bug FixesSection of the release
What

An MCP server is an add-on that gives Claude extra tools. Claude Code always put the server's name and a colon in front of its error messages. It now leaves that out when the error is just the name or already begins with it.

Why

MCP failure messages no longer show the server name twice.

See this entry in the whole of v2.1.311 →

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