If PG Music can't answer, we users certainly can't. But there is no reason you would need to go back to install anything from older versions UNLESS you purchased bonus paks. I save the .EXE files for those in case I ever have to start over, but as for BIAB itself, the latest version should suffice. Then run the latest updates, which are always cumulative.

I'm also assuming you back up your own songs and styles.


BIAB 2026 Win Audiophile. Software: Fender Studio One 8, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Presonus Quantom HD8 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.