Your songs made in 2010.5 will be fine when played in 2011.

I do not erase old versions; I install on top of them. That way, I keep any 'bonus pacs' that PG Music may have provided along the way.

Whenever you install a new version, BIAB automatically makes a copy of the needed .EXE file of the older version, so you could revert if you wanted to. I never had to.

Keep in mind that any saving of file space you would realize by removing 2010.5 is very small compared to the size of the Real Tracks. Even better, version 2011 allows you to remove unneeded pitch-shifted versions of RealTracks so that (assuming your machine is decently fast) you can shrink the size of the Real Tracks to about 35% of what they used to be. If you want to save space on the drive, that is a real saving.


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.