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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 v2.1.221 ·

Bug hunter runs code-quality checks by default

Bug hunter now runs a code-quality pass automatically unless you set code_quality to false.

You'll notice Notable No documentation found New Features
JSON All of v2.1.221
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
AgentsArea: what it touches
New FeaturesKind: in v2.1.221,
What probably matters to youSection of the release
What

Bug hunter runs now enable a code-quality pass unless you turn it off in config.

Details
  • the bug hunter environment sets BUGHUNTER_CODE_QUALITY: "1" alongside the existing fleet size, duration and timeout variables
  • opt-out only: the variable is omitted when the config sets code_quality to false
  • there is no opt-in step, so existing runs pick this up automatically
Evidence

BUGHUNTER_CODE_QUALITY

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

Read from
Names in the bundlecode_qualityBUGHUNTER_CODE_QUALITY

See this entry in the whole of v2.1.221 →

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