It looks like mostly awaited bug-fixes for the previous big v10.3 update (there were a few niggles with the new Track Alternative functions amongst other things), but also adds updated Audio Unit v3 compatibility.
Apple Logic Pro tips and tricks
It looks like mostly awaited bug-fixes for the previous big v10.3 update (there were a few niggles with the new Track Alternative functions amongst other things), but also adds updated Audio Unit v3 compatibility.