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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.321 ·

Claude Fable 5.2 self-description and new instructions on finishing work and memory

Claude Code adds text naming the model as Claude Fable 5.2, plus instructions on not stopping early and on what to save as memories

Under the hood Internal Changes
JSON All of v2.1.321
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
System PromptArea: what it touches
Internal ChangesKind: in v2.1.321,
Internal ChangesSection of the release

Unclear Whether these instructions are always sent or depend on a remote setting is not known.

What

The instructions Claude Code can give the model gain new text. Before, only text describing Claude Fable 5.1 was present.

  • A description saying the model is Claude Fable 5.2, the newest Claude 5 model.
  • A "Finishing work" section telling the model not to stop while work it still owes remains.
  • A "Memory, notes and feedback" section telling it to save only lasting, useful memories and not records of work already done.
Why

These instructions change when the model decides it is done and what it chooses to remember between sessions.

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 these instructions are always sent or depend on a remote setting is not known.

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