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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.108 14 Apr 2026

MCP Server Auto-Reconnection with Backoff

What

Failed remote MCP servers now automatically reconnect using exponential backoff instead of staying disconnected.

Details

Logs: [MCP] Retry: N failed remote server(s) after Xms backoff
Stops retrying when all servers reconnect: [MCP] Retry: all remote servers connected, stopping
Reports persistent failures: remote server(s) still failed after all retries:

Evidence

MCP reconnection logic (search for "[MCP] Retry" and "failed remote server")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.108 →