Contacted Soundtoys through FB and for some reason, I'm not on their email list.
Anyways, here's their response to what's new...
Here was the text from that email:
""" We strongly encourage all Soundtoys 5 users to install our latest update as soon as possible.
The new installers are now in your Soundtoys account.
This update fixes known issues:
Session recall issues if you manually adjusted Decapitator’s output controls while the “Auto” mode was enabled.
Graphical issue with Crystallizer displaying incorrect settings for the MIDI and Rev switch (this was only a graphical issue – your settings are still correct).
Contact our Support Team if you have problems using our software.
We’re here to help.
Thanks, Soundtoys Crew"""