Hi, I am one of the Darktable maintainers.
Darktable 2.0 is going too be released soon. According to EPEL policies, I
could not release such major release for EPEL/RHEL 7.
Do you usually apply this rule strictly or sometimes you make an exception?
New version of Darktable will rely on GTK3, but concerning the remaining
libraries, there will not be a great change.