From the Cakewalk by Bandlab link above:

Quote:
Due to Apple’s new security restrictions, KOMPLETE 8, 9, and 10 HDDs and all KOMPLETE DVDs will no longer work with macOS Catalina, but your products will always be available to download via Native Access. If you’d like to install products from your DVDs or hard drives, do so before updating.


Quote:
I received an email from Ableton that version 9 will no longer work with Mac latest update.
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Jim Fogle - 2020 BiaB (721) RB (Build 3) Ultra+ PAK
Cakewalk - Zoom MRS-8 recorder
Desktop: i7 Win 10 build 1909, 12GB ram 256GB SSD, 4 TB HDD
Laptop: i3 64bit Win 10 build 1803, 8GB ram 500GB HDD
Music at: http://fogle622.wix.com/fogle622-audio-home