Bugbot Gets Major Upgrade: 3x Faster, 22% Cheaper, and Finds 10% More Bugs

Jun 11, 2026
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Summary

Bugbot just received a massive upgrade making it over 3x faster, 22% cheaper, and 10% more effective at catching bugs, with 90% of runs now completing in under three minutes thanks to harness upgrades and the new Composer 2.5 model integration.

Key Points

  • Bugbot receives a major update making it over 3x faster, 22% cheaper, and capable of finding 10% more bugs, with 90% of runs now completing in under three minutes.
  • A new /review command lets developers run Bugbot and Security Review before pushing code, and if the same diff is later opened as a PR, Bugbot automatically skips the repeat review and notes it was already completed.
  • Bugbot can now be configured to only review new changes since the last review rather than re-reviewing the entire PR, with performance improvements driven by harness upgrades and the newly integrated Composer 2.5 model.

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