The History panel shows all the edits you’ve made. It can bring you back to an earlier state of your photo.
Another great feature of Aurora HDR for Mac is the opportunity to save your work in the proprietary .mpaur2 file format along with editing history. With .mpaur2, all of your layers, filter settings, and edits will be saved. You can come back to your file later and find it just the way you left it.
The history panel is convenient when you’re experimenting with different looks.