Every now and then, it occurs that someone didn't backup the project when opening it in a beta version, just like here. While creating a backup of the project is mentioned in various alpha/beta related documents, some people don't seem to remember it. In order to reduce such issues, I propose you improve the "Opening Project in Non-Matching Editor Installation" dialog in Beta and Alpha releases. Spoiler: Original dialog I'm referring to In Beta and Alpha releases, the text should also contain, in red letters: To backup the project. The consequences that might result in not backing up the project. What also comes to mind: Change the Unity icon to a warning icon. It indicates there is something more important going on. Change the default button focus from "Continue" to "Quit", for people who automatically confirm dialog boxes with "Enter" everything one pops up.