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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.283 ·

MCP server error output is no longer logged when Claude Code is already shutting down

If an MCP server fails to connect after shutdown cleanup has begun, Claude Code no longer logs that server's error output

Under the hood Internal Changes
JSON All of v2.1.283
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 v2.1.283,
Internal ChangesSection of the release
What

MCP servers are outside programs that give Claude Code extra tools. When one fails to connect, Claude Code logs the error text the server printed. It now does this only if Claude Code has not yet started cleaning up to exit. Before, it always logged it.

Why

This cuts out misleading MCP error lines when you end a session while servers are still connecting.

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 unclear whether this log line ever reached you on screen or only went to the debug log.

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