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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 ·

Conversation-size counting after a compaction now needs a recorded size

After a compaction, Claude Code reports no token count unless the compaction recorded the new size, and compaction requests pass a new option

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

Compaction is when Claude Code summarizes earlier parts of a conversation to free up room. Tokens are the small chunks of text the model counts to measure length.

  • When Claude Code looks back for the latest token count and reaches a compaction, it now stops there. If that compaction did not record the size of the conversation after it, Claude Code reports no count. Before, it returned a count at any compaction.
  • A compaction request now passes along a summarizeKeptRounds option.
Why

This affects how Claude Code works out how full the conversation is right after a compaction.

See this entry in the whole of v2.1.321 →

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