There's a full feature list on the shop page but basically it adds some SDK 2.5 features:
submenus for combined mod displays with thor-like amount "knobs" and menus to clear mods,
random generation custom waveform tools,
modifier keys for the custom waveforms,
sample and hold sources,
more grid sources,
curve shape menus and other front panel sources have submenus too,
some GUI tweaks and other stuff,
and a bunch of combi patches from remo101 (Reason 10 instrument combis!).
GDI Objects in Windows:
Also if you ever run into an issue in Windows where you have a ton of devices in the rack. loading or creating, and get a "device view: unable to load" error dialog box, it's a "GDI objects" issue.
Here's an easy fix:
https://weblogs.asp.net/mikedopp/increa ... dle-limits
I learned this the hard way trying to turn too many of my indy menus into new displays, so I had to revert some of my planned changes. This version should be OK for you, but if you are seriously pushing the limits with a crap ton of KRONs (and/or other REs with lots of displays), this fix will help. I'm not sure if there's a similar issue on Macs or not yet.