TLDR Tech / Practical
Linear cuts CI wait times despite 3.7x growth in AI-generated tests
Linear achieved a 12% reduction in continuous integration wait times from January to September 2026, even as its pull request test suites expanded 3.7 times. The company implemented a multi-stage CI optimization strategy, incorporating external runners, switching its TypeScript type checker to tsgo, streamlining linting, and limiting Git fetch depths. These measures prevented test execution times from reaching an estimated 11 minutes.
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