In the app store now.
Release notes to follow...
https://www.apple.com/newsroom/2019/06/ ... w-mac-pro/
Improves responsiveness of the Mixer and Event List when working with large sessions
Projects with numerous Flex Time edits and tempo changes perform more efficiently
Optimizes performance for Mac Pro including support for up to 56 processing threads
This update also contains additional stability and performance improvements
Increased Number of Tracks and Channels, up to:
1000 stereo audio channel strips
1000 software instrument channel strips
1000 auxiliary channel strips
1000 external MIDI tracks
12 sends per channel strip
The Loop Browser can filter by loop type and allows drag and drop of multiple loops into your project simultaneously
Redesigned DeEsser 2 plug-in provides more options to reduce sibilance on audio tracks
Send MIDI beat clock to individual ports, each with unique settings like timing offset and plug-in delay compensation
Requires High Sierra.