On several input channels I’m seeing rage about the new Android Phone and Contacts apps, big redesigns with no warning. If there are people for whom you provide tech support, e.g. elderly relatives, you'd better get in touch and teach them how to answer a phone call, because tapping the green button doesn’t work any more. Also it’s hard to find call history, and more.
Some Product Manager needed a promotion. As usual, when doing cost/benefit analysis, the pain inflicted on users was ignored.