It is about the time to start with mass rebuild of packages for Ruby
2.6, since the change proposal was already accepted in advance. Finally,
after more then week of waiting, I was also able to obtain side-tag ,
so we won't disrupt Rawhide a lot. The Ruby 2.6 is already build there
as well as a few other packages. Now it is time for your help.
This is the list of packages, which very likely needs rebuild:
$ dnf repoquery --disablerepo=* --enablerepo=rawhide
--enablerepo=rawhide-source --arch=src --whatrequires 'ruby-devel' |
sort | uniq
You can take the package and just fire rebuild, but please ensure that
you are using f30-ruby build target , i.e. the build command should
$ fedpkg build --target f30-ruby
Please be careful, because if you, by a chance, omit the f30-ruby
target, you'll be building against Ruby 2.5 which is not what you want.
If you won't do it by yourself, I'll be rebuilding all packages after I
am finished with my packages. I'll be using fermig  to help mi with
that. If you don't want me to touch your packages for whatever reason,
please let me know.
Also, Pavel Valena built some packages against Ruby 2.6 in his Copr
repository , so please check if other packages needs some adjustments.
You can follow the progress at:
$ koji list-tagged f30-ruby
As always, any help/testing/feedback is welcome.