Are any 3rd party plug ins (api files, not js) working in "New Acrobat experience" ?

Below is a post I made to the SDK area hoping for help from other developers. In a prior release, earlier this year, of the "new Acrobat experience", Acrobat would crash when I tried to open a document with my plug in enabled. Either disabling New Acrobat or removing my plug in fixed it. Adobe clearly documented that 3rd party plug ins were not suported at that time. In the newer release, I still get that behaior but the documentation no longer includes the warning and describes the new look as if it is completely functional.  Anyway, lacking any feedback from other developers, I wanted to jsut ask this general question - is anyone using 3rd party plugins with the new Acrobat look and having success? Note that I am talking about api files in the plug-ins folder, not javascripts.

I am talking about New Acrobat as described here:

https://helpx.adobe.com/ca/acrobat/using/new-acrobat-experience.html

In a prior version of that page, there was a note about it not supporting 3rd party plug-ins. It wasn't very polite about that either; it just crashed with the plug-in installed but didn't if it was removed. It also runs fine with the plug-in in the regular mode.

The current version of the above linked page describing the new look doesn't mention the lack of 3rd part plug-ins. It was very prominently mentioned before and has now been removed, so my assumption was/is that they think it is fixed. 

What makes this especially bad is that when you get an update including it, it is enabled by default, so all users get the crash.

I am now wondering if this was addressed and there is something I need to change in my plug-in the support the new look.