I will include some of the rest that was in today's email if that helps give additional info:
NEW - Compatible with the latest Windows and Mac operating systems
The 2018 Nik Collection by DxO is now fully functional with the latest 64-bit version of Microsoft Windows and Mac OS X.
NEW - Adobe Creative Cloud now supported
The app is now completely compatible with Adobe Lightroom Classic CC, Photoshop CC 2018, and Photoshop Elements CC 2017/2018!
NEW - Optimized user experience
The Selective Brush tool is now fully operational, and you can modify filters and dynamic objects freely.