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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.257 ·

New locked cleanup path for stray history.jsonl staging copies

A locked cleanup routine removes stray history staging copies while leaving recently-written ones alone.

TierUnder the hoodhow much it should matter to you
Useful2my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaData Retentionwhat it touches
KindInternal Changesin v2.1.257,
Under the hood

A locked cleanup routine removes stray history staging copies while leaving recently-written ones alone.

A new locked cleanup routine removes stray history.jsonl staging-copy files older than a minute, after acquiring a lock on history.jsonl. It reports distinct error codes/messages when a file can't be removed, and leaves recently-written files alone, flagging them as possibly still live (history_siblings_remain).

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Names in the bundlehistory.jsonl
Since it was published

The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.

Confirmed since Anthropic's documentation has since written up history.jsonl, on Explore the .claude directory. | `~/.claude/history.jsonl` | Up-arrow prompt recall, `Ctrl+R` history search, and `!` shell-command completion | claude-directory see the edit
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up history.jsonl, on Explore the .claude directory.

See this entry in the whole of v2.1.257 →

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