Itās a bit more of a complicated nightmare, especially for plugin developers like me. Thereās still a lot of conflicting info about what will run, and the Catalina release is about a month away. From @andrewās link:
Unverified plug-ins may also continue to work inside DAWs ā depending on the DAW youāre using. This means in theory, youāll be able to install and attempt to use plug-ins, even if they havenāt been updated for Catalina. You would need to override plug-in notarization requirements for the installation from dmg (Disk Image) files, but once a file was installed, a DAW may be able to support it, theoretically. Your mileage may vary when it comes to actual use, however; the advantage of the installer requirement may be that it gives a clue that a developer has tested on Catalina.
PreSonus has just announced for their Studio One DAW that not only will you need to update Studio One itself, but many plug-ins will also need an update. In their case, plug-ins built before June 1, 2019 will still need to be signed (the earlier method of verification for Apple developers). Plug-ins built after that date will need to fulfill Catalinaās tougher requirements ā notarization and the hardened runtime.
Is serialosc signed? If not, that will need to be updated for Grid/Arc to work:
Drivers for hardware will hit a hard wall. Unverified drivers will not function on the new OS. This means if you have older hardware that doesnāt have updated drivers and installer, you wonāt be able to use it. Thereās no ability to override this requirement.
Iām dreading this update as both a developer and a user. This is going to have a massive effect on the Mac audio landscape, and a lot of excellent software is now going to be filed away as Legacy. Unfortunately, weāre going to see this happen all over again once they fully drop OpenGL support.
