TestSwarm jQuery Commits
These past couple days we've been using TestSwarm to enhance our development process on the jQuery project. Having a commit-by-commit view spread out by browser we're able to get a better picture of what changes when a commit lands.
For example, commit #6423 had a trailing comma in it which caused the suite to die in IE 6 and 7 (we were able to spot this pretty quickly since we could see which commit held the offending code).
Commit #6428 fixed the trailing comma but introduced a regression in the test suite (which is immediately obvious by the 'red' status across the board).
Opera 10b1 is currently the only browser failing (but that's mostly because its implementation of :enabled/:disabled is broken).