I just wanted to take a second to say that, for me, Darktable 3.x has been an amazing upgrade – huge thank you to the developers.
The workflow improvements are such a huge leap forward. Using Filmic RGB and the Tone Equalizer I’ve been able to do things that used to take me five or six modules and at least 3X as long in 2.6.x. And despite being a dark theme sort of person, I think the new lighter gray interface looks really nice. so thanks again to all those who obviously put a ton of effort into this release.