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Sweep 30 Oct 2026 · 01:02Z Build v2.1.314 532 read Stable v2.1.308 Latest v2.1.314 Next v2.1.314 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.314 ·

Idle compaction gains a log-only mode and can be refused by the host

Idle compaction now follows a mode such as off or log, can be refused by the host program, and in log mode only records that it would compact

You'll notice Improvements
JSON All of v2.1.314
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
CompactionArea: what it touches
ImprovementsKind: in v2.1.314,
ImprovementsSection of the release

Unclear Which mode is used for your sessions is not stated.

What

Compaction is when Claude Code shortens a conversation by summarising it. Idle compaction, also called sleep compaction, does this while a session sits idle. It has changed in these ways:

  • It now follows a single mode, such as off or log, instead of a group of settings.
  • In log mode it only records that it would have compacted, without doing it.
  • The smallest conversation size it acts on is now worked out each time rather than fixed.
  • The host, a program that runs Claude Code, can refuse a compaction.
  • Whether it summarises now depends on whether there is a host, not on a separate compact-on-return mode.

CLAUDE_CODE_SLEEP_COMPACT still controls whether idle compaction is set up when Claude Code runs without its interface.

Why

This changes when idle compaction happens and how it is reported.

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 doubtWhich mode is used for your sessions is not stated.

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