1. Increment version in lib/foreman_abrt/version.rb
2. $ git commit -a -m "Release X.Y.Z"
3. $ git tag X.Y.Z
4. $ git push && git push --tags
5. $ gem build foreman_abrt.gemspec
6. $ gem push foreman_abrt-X.Y.Z.gem
7. Follow https://github.com/theforeman/foreman-packaging/blob/rpm/develop/README.md#howto-update-a-package