Saving multiple versions of one project.

What’s the best way to save multiple versions of the same project?
I tried creating a different .cpr for the same song using “save as” under a new name so I could keep the old version, just in case the new version didn’t go as planned. When I tried opening the original .cpr, it says there are files missing and I have to try locate them… The new one opens just fine and all the audio files are there - I hadn’t recorded new audio files to the new version however. Both projects are saved in the same folder so the audio should be available to both versions, right?

Cheers

Use Backup Project from the file menu.

That’s the business. Thank you, Brains.