You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.274,
ImprovementsSection of the release
What
When connecting to an MCP server, Claude Code used to only subscribe to notifications that a server's list of prompts or resources changed if the server explicitly advertised support for that (listChanged). Now it subscribes as soon as the server declares the prompts or resources capability at all, whether or not it explicitly says it supports change notifications.
Why
This means Claude Code can pick up updates to a server's available prompts or resources from more servers than before, including ones that didn't explicitly flag support for change notifications.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeFixed MCP prompts and resources not refreshing when a server sends list-changed notifications without declaring listChanged
