[$] The edge-triggered misunderstanding

The Android12 beta release first appeared in May of this year. As is almostobligatory, this release features "the biggest design change inAndroid's history"; what's an Android release without requiringusers to relearn everything? That historical event was not meant toinclude one change that many beta testers are noticing, though: a kernelregression that breaks a significant number of apps. This problem has justbeen fixed, but it makes a good example of why preventing regressions canbe so hard and how the kernel project responds to them when they do happen.