Hi, I want to do some work on an audio unit after a gap of (many) years, and am not clear about the status of v2 AUs. There's no template for them in the current Xcode, and the relevant CoreAudio classes (AUBase and subclasses) are also absent.
Have I missed some optional download from Apple that restores these things, or is it all over for v2?
Apple started publishing the AU SDK on GitHub as of last year, you can find it here: https://github.com/apple/AudioUnitSDK
There's also an examples code repo: https://github.com/apple/AudioUnit-Examples