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Sweep 09 Oct 2026 · 17:27Z Build v2.1.296 517 read Stable v2.1.287 Latest v2.1.296 Next v2.1.296 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.296 ·

MCP connection diagnostics now record when the server finished its startup handshake

MCP connection diagnostics now note the time an MCP server successfully answered the start-up notification

Under the hood Internal Changes
JSON All of v2.1.296
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
MCPArea: what it touches
Internal ChangesKind: in v2.1.296,
Internal ChangesSection of the release
What

MCP servers are outside programs that give Claude Code extra tools. When Claude Code connects to one, it sends a notification saying the connection is ready. Claude Code already recorded whether that notification got a successful answer. It now also records the moment the answer arrived, in the diagnostics it keeps about each MCP connection.

Why

This only adds diagnostic detail, which can help when working out why an MCP server is slow to connect. MCP servers behave the same as before.

See this entry in the whole of v2.1.296 →

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