More Like iOSįollowing a trajectory that has been underway over the last few years, macOS 11 is more like iOS than ever before. If you want to learn more about how Rosetta 2 and Universal 2 will impact audio applications including DAWs and plugins then read our articles Apple Silicon - A Developer Helps To Explain The Impact and Apple Silicon - How This Will Affect You And Other Audio Professionals. That said, the creation of Rosetta 2 will help by enabling Intel coded apps and plugins to run in Big Sur on Apple Silicon computers. If you thought that the upgrade from macOS Mojave to macOS Catalina was a challenge with the dropping of support for 32-bit apps and code, then the change to Big Sur is going to more significant especially if you are coming from Mojave or earlier. As the numeric change would suggest, this is probably the biggest change to macOS since Apple introduced Mac OS X roughly 20 years ago, especially when you consider the changes that come with the transition from Intel to Apple Silicon.
With the release of macOS Big Sur, on Thursday, November 12th 2020, Apple retires Mac OS X (10) and replaced it with macOS 11.