You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.304,
ImprovementsSection of the release
What
MCP servers are outside programs that give Claude extra tools, using the Model Context Protocol. Requests to some of them carry a login token. When that token is withheld for a stated reason, the request now fails with an error. Before, it was sent without the token.
Separately, a session that takes its managed settings from your organization now refuses to add MCP servers, and says so with a message.
Why
This is a security tightening: a request that should be signed in no longer goes out unsigned. It also means such MCP calls now fail visibly where they used to be sent anyway.
