This is a tracking bug for Change: Ruby 2.6
For more details, see: https://fedoraproject.org/wiki/Changes/Ruby_2.6
Ruby 2.6 is the latest stable version of Ruby. Many new features and improvements are included for the increasingly diverse and expanding demands for Ruby. With this major update from Ruby 2.5 in Fedora 29 to Ruby 2.6 in Fedora 30, Fedora becomes the superior Ruby development platform.
The Ruby mass rebuild is done and the side-tag was merged back into Rawhide: