In recent years, the CI load across core WordPress GitHub repos increased as the project evolved. This is normal for an active project.
But, the load can be especially high when running the full PHPUnit matrix at once on many PRs, such as during a release with many backport branches. Cases like this mean the number of jobs can strain the capacity of the system.
Ahead of 7.1, we’ve landed a round of trims and reliability fixes aimed at increasing capacity and running leaner while ensuring quality checks still run.
This CI work builds on the test-suite optimization work from
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