Have there been any changes to the Nik Collection since DXO took it over. I’ll gladly buy a copy if so, but I’m currently running on the copy that I bought from the original developers.
If you do not like marketing bling bling, and want hard facts, then the release notes page is the place to go:
https://nikcollection.dxo.com/release-notes/
So it is all about bug fixing and tool integration now.