Connect Claude Code to tools via MCP changedmcp
Nearest release: v2.1.296, published 2 hours after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Upstream edited this page at 9 Oct 2026 14:21 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 9 Oct 2026 14:37 UTC.
Upstream edited
Recorded here
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325
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits83to this page, all time
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326326On v2, Claude Code also:
327327
328* Asks HTTP and stdio servers whether they support the newer revision, and uses it with those that do. In sessions where it fetches feature flags, it also asks claude.ai connector servers. It connects to every other server as v1 does.
328* Asks HTTP, stdio, and claude.ai connector servers whether they support the newer revision, and uses it with those that do. It connects to every other server as v1 does.
329329* Receives `list_changed` notifications from servers on the newer revision over a [stream it holds open](#notification-streams-on-the-v2-runtime).
330330* Doesn't register a [channel](#push-messages-with-channels) server that connects on the newer revision, because that revision can't carry channel messages.
331331* Fails an [MCP OAuth sign-in](#authenticate-with-remote-mcp-servers) whose authorization response names an unexpected issuer.
No line in this hunk matches that.