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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 v2.1.208 13 Jul 2026

Engine log prefix renamed from [shoji-engine] to [engine]

What

Debug log messages from the session engine now use the prefix [engine] instead of the old [shoji-engine] prefix. Similarly, [shoji] prefixes on other wire-layer messages have been updated. This affects diagnostic output in claude --debug and log files.

Evidence

Prefix rename (removed: "[shoji-engine]", added: "[engine]")

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

See this entry in the whole of v2.1.208 →