Claude Code adds idle compaction, Codex restores Daybreak by default
Claude Code 2.1.299–2.1.302 now auto-compacts conversations over 200K tokens left idle for about 54 minutes, before the one-hour prompt cache expires. Codex 0.163.0 re-enabled Daybreak by default for eligible accounts, reversing v0.161.0, while Gemini CLI v0.64.0 ships fixes only.
- Idle compaction triggers at 200K+ tokens after ~54 minutes idle
- Disable it with idleCompaction: false or via /config
- Codex 0.163.0 made Daybreak default again five days after opt-in
- Gemini CLI v0.64.0: atomic writes and CPU hang fix
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