If you are downgrading from a newer version of iTunes to an older one, you might see an error stating that your iTunes Library.itl file cannot be read because it was created by a newer version.
Apple still hosts DMG (disk image) files for many of these legacy versions for users running older hardware. 2. Trusted Third-Party Software Archives download itunes 101399 for mac free
Use the native Apple Music app to manage your local MP3 library and local playlists [2]. If you are downgrading from a newer version