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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.247 ·

Debug log can be allowed to end short rather than block at exit

You can let the debug log drop pending lines at exit instead of blocking shutdown.

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InternalsArea: what it touches
Internal ChangesKind: in v2.1.247,
What probably matters to youSection of the release
What

A process can now start the debug logger with syncExitDrain: false, and when the v5 log storage backend is in use, queued lines still pending at exit are dropped instead of written. Startup prints a warning that the log may be truncated. Without an explicit false, the logger still drains as before.

Details
  • Both conditions are required: the option set explicitly to false and the v5 storage backend active.
Evidence

Sync exit drain off for this process: debug lines still queued at exit are dropped, so this log may end short

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Read from
Names in the bundlesyncExitDrain

See this entry in the whole of v2.1.247 →

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