rails/rails — pull request #14101 by sikachu (2014-02-18 21:15:06+00:00)
Title: Introduce `Rails.gem_version`

This method returns a `Gem::Version` object, which is useful when performing a comparison between versions. This was originally introduced as `.version` by @charliesome in #8501, but got reverted in
#10002 since it was not backward compatible.

Also, updating template for `rake update_versions`.