I beg to differ about 2.8, the work flow is messed up. With 2.8 when you open a photo, say a jpg, it is imported. When you get done with your edits you have to export it. If you want to export it to the same name there is no keyboard short cut for that action. After you export, "save", it and you close the window you have to deal with a popup that asks if you want to save changes. Bad work flow, bad user experience.
Saying that I have been happy with previous versions.