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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 v2.1.247 26 Aug 2026

API dumps are addressed by session only

Under the hood

Useful1 Signal2

Internals

API dump logs are now filed by session only, not per agent or run.

What

The log storage path schema split apart: debug and telemetry logs keep their per-agent and per-run fields, while API dumps now take only a session id and can no longer be addressed per agent or per run.

Evidence

apiDump

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

See this entry in the whole of v2.1.247 →