Apple has released new operating systems and new versions of major apps in the last few weeks, and today they also gave some love to users of their pro audio apps Logic Pro and MainStage. Logic gets Smart Tempo, multi-track stems and numerical editing for Alchemy parameter. MainStage gets text notes, new MIDI input functions and a better metronome.
There is also support for sound libraries on external drives and new drum kits and functionality. You can read about the new changes at their respective App Store pages: Logic Pro X and MainStage 3.4.