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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 v2.1.248

Model names in switch messages render as code spans

You'll notice
Useful1 Signal1
Models

Model names in switch messages now render as code, safely handling backticks.

What

Messages announcing a model switch now wrap the model name in backticks, choosing a fence length that survives names containing backticks. Applied only to lines with a known model-switch prefix or the fast-mode banner.

Evidence

No response from the cloud session — the switch to

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 v2.1.248 →