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Sweep 23 Oct 2026 · 21:48Z Build v2.1.310 529 read Stable v2.1.308 Latest v2.1.309 Next v2.1.310 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.310 ·

Progress updates with no summary can be left out of streamed output

Claude Code can now skip task progress events that carry neither a summary nor workflow progress when it writes its output stream

You'll notice Improvements
JSON All of v2.1.310
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SDKArea: what it touches
ImprovementsKind: in v2.1.310,
ImprovementsSection of the release

Unclear It is not clear whether this skipping is on by default or only when a program asks for it.

What

When Claude Code streams its events to a program reading them, for example through the SDK (the kit developers use to drive Claude Code from their own code), it can now leave out task progress events that have neither a summary nor any workflow progress attached. Events that do carry one of those are still written.

Why

Plain progress events with nothing in them add noise to the stream. Programs that read the stream may see fewer of them.

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 doubtIt is not clear whether this skipping is on by default or only when a program asks for it.

See this entry in the whole of v2.1.310 →

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