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Sweep 27 Oct 2026 · 19:04Z Build v2.1.312 531 read Stable v2.1.308 Latest v2.1.312 Next v2.1.312 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.311 ·

Session transcripts now keep a list of the tools used

Session transcripts store a list of tools used, and that list is copied when you branch a session into a new one

Under the hood Internal Changes
JSON All of v2.1.311
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Session TranscriptsArea: what it touches
Internal ChangesKind: in v2.1.311,
Internal ChangesSection of the release

Unclear Whether this list is recorded by default is not known.

What

Claude Code saves each session (one conversation) as a transcript. Transcripts now hold an entry listing the tools Claude used, such as running commands or editing files. It is written as messages are added, and again when session details are saved.

When you branch a session into a new copy, the list is carried over into the copy. It is also included when a session is restored.

Why

This changes what is stored in saved session files.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhether this list is recorded by default is not known.

See this entry in the whole of v2.1.311 →

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