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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.308 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.301 ·

Windows: task output keeps retrying when its file is busy

On Windows, Claude Code now keeps trying for a set time to write a task's final output line when the file is busy

You'll notice Bug Fixes
JSON All of v2.1.301
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Bug FixesKind: in v2.1.301,
Bug FixesSection of the release
What

When Claude Code runs a task, it writes the task's output to a file and finishes with a closing line. On Windows, another program can hold that file busy (an error called EBUSY). Claude Code now keeps retrying the closing line for a set amount of time instead of trying once more and giving up.

It shows a warning while it waits, and another if the line still could not be written when time runs out.

Why

This avoids losing the line that marks a task as finished on Windows.

See this entry in the whole of v2.1.301 →

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