Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
MCPArea: what it touches
Internal ChangesKind: in v2.1.299,
Internal ChangesSection of the release
What
MCP servers are outside programs that give Claude Code extra tools, and some require you to sign in. Finding the server's sign-in details, refreshing a sign-in and completing one now use a network function set up for each server, instead of one shared for all.
Separately, requests for artifacts now record which route they took in usage data: MCP, HTTP fallback, HTTP or relay.
Why
Artifact requests can now travel through MCP with a fallback to plain HTTP.