Well, let me disagree. The documentation is lagging. Right after the WWDC there were nothing except for some header files.

Also, why half a year? Do you think it will take them that much to release 10.15.4?

What's this "documentation" thing you're talking about? Is it something other than header files and code?

I'm joking but documentation (and tech support) do seem to be dying things at Apple and elsewhere.

Actually, they are quite helpful on the developer forums.

Fully agree on the documentation point, though.

Surely you don't think 6 months is enough to rewrite entire drivers and Kexts, do you? That is a short transition by any comparison.

How do you get 6 months from June 2019 announcement for the next major OS release which won't be out before September 2020? It still works in Catalina and they won’t change that in a point release.

Because you don't have one year to update and release your software. You have to have it ready and begin testing at least by the time betas of the next version of OS ships.

And to do that, you have to start much earlier.

6 months since the announcement of the entirely new not-seen-before thing with next to zero documentation to understand, develop an alternative (if it's at all possible) and distribute it to users.

How is that enough time?