Linux Kernel 5.4 and VirtualBox Puzzle

I've been puzzling over WHY my VirtualBox doesn't work under Linux kernel 5.4 ever since 5.4-RC1 came out.  Last week, Slackware -current made 5.4 the default kernel so I hoped all was well - NOPE!  So I compiled it myself adding in the modules that have always allowed everything to work up until 5.3.x.  That didn't work either.  Bummer.

So I did a bit of research (5 seconds of googling) and it seems there was a lot going on with VirtualBox and Linux kernel 5.4.  First there was this:

Linux 5.4 kernel will no longer make interfaces available so that arbitrary kernel modules may modify page attributes to turn the executable bit on/off. Virtualbox currently is one of such kernel modules doing that.

 Then, it seems, in 5.4-RC7 they added a special "shared folder" area for Virtualbox which was later removed. 

So, at this time, it seems VirtualBox and Linux kernel 5.4 are not going to play well together until a special new VirtualBox 6.1 candidate is released (designed specifically to work with VirtualBox).  So far, I cannot find this release candidate (5 seconds of googling).

That's ok, I have my box set to always my special vanilla 5.3.x (5.3.15 at the time of this writing).  I just hope this continues to get updates so I don't have to drop back to the 4.19.x LTS kernel.

If you see a release candidate for VirtualBox 6.1 post a response.  I'll do the same (so we're racing).