You'll noticeTier: how much it should matter to you
4Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
MCPArea: what it touches
Bug FixesKind: in v2.1.238,
What probably matters to youSection of the release
What
When an MCP server connection is re-established, Claude Code now checks whether a newer connection attempt has started since. If so it closes the connection it just made and publishes nothing, so a late-arriving reconnect cannot replace the tools, prompts and resources of the connection you are actually using.
Details
The check runs after connecting and again after each list_changed refresh.
Stale connections are torn down through detachAndCloseConnection.
Evidence
detachAndCloseConnection
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
