That's right - this setup has two separate libraries, both of them have the same binary name "MyLibrary". [The exported symbols are all different because the symbols contain the version "A" or "B" in the symbol names.] I was surprised that this could even work, but my coworkers told me that they have been using this scheme for some time, and it seems to work fine on most other Macs. Thanks. Devendra.

Yes, these are different versions of the same basic code, but with some additions, changes, etc. All the exported symbols however are prepended with a version specific identifier. For example, MyLibraryA would have A::SomeFunc(), while MyLibraryB would have B::SomeFunc().

I think that's what we'll just do - no need to live in the ambiguity! Thank you Quinn for your help - as always! Devendra.

If anybody is looking here, I want to update that the latest macOS versions have restored the functionality o taskinfo reporting information about kernel task threads.