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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.242

Credentials passed into MCP setup, cloud session start and render paths

Under the hood
Useful1 Signal2
Auth

Credentials now travel into MCP setup, cloud and teleport session start, and several render paths.

What

Credentials now travel with the storage handle into MCP session start and setup, into the cloud and teleport session option bags, and into several render paths. The number of sites passing credentials rises from 599 to 800.

Evidence

credentials: e.credentials

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.242 →