There is now a v10.4.5 software update for Logic Pro, bringing the brand’s flagship DAW up to speed with the new Mac Pro’s tremendous processing power. The update includes a new mixer which is capable of hosting 1,000 audio tracks. Also some selective plug-in-loading as well as a refreshed version of the De-Esser plug-in.
The older version was limited to just 256 stereo audio and aux tracks. Now, it can host a huge number of tracks and channel, software instrument channel strips, auxiliary channel strips, and external MIDI tracks. You’ll also now have access to 12 sends per channel strip, up from eight.
Read more about this here: https://www.musictech.net/news/gear/logic-pro-x-beefs-up-performance-significantly-in-v10-4-5/