It usually doesn't take a lot of work for engineers to do some brainstorming around who will be affected and send a direct email letting users know what's up. That would have saved you days of fumbling around and frustration.
I have a growing enthusiasm for companies that consistently care for users, and conversely a callous distain for companies that don't.
I have a growing enthusiasm for companies that consistently care for users, and conversely a callous distain for companies that don't.