Logic Pro X 10.3.3 [MAS] – Optimized for iMac Pro & Stability Improvements Post Content: The latest update for Logic Pro X (v10.3.3)

6GB for minimum install; up to 63GB for the full Sound Library. Installation Notes:

features a new High-Definition mode for better string resolution. High Sierra Support:

For those using the MAS (Mac App Store) version, ensure you have removed any older versions from your Applications folder (or temporarily moved them to the Trash) to allow the "Install" or "Update" button to trigger correctly in your Further Exploration

Fixes an issue where user-created content (libraries/samples) would sometimes go missing on macOS High Sierra Stability:

macOS 10.12 or later (though some users report success on 10.11 via specific App Store methods). 4GB minimum.