Continuing the countdown, the #81 Rails committer by commits is Stefan Kaes.

Stefan made 99 commits to Rails between 2005 and 2008. Over half of those commits happened in 2005, an early year for Rails; Rails version 1.0 was released in December 2005, and most of Stefan’s commits come in before then. So Stefan is one of the people who got Rails off the ground in its early days. As you might expect, his commits come in all across the framework, including ActiveRecord, ActiveSupport, and ActionPack (both ActionController and ActionView).

The file he modified the most frequently was activerecord/lib/active_record/base.rb, followed closely by activerecord/test/base_test.rb and actionpack/lib/action_controller/cgi_process.rb — a file which no longer exists, having been replaced by Rack, but which was the major connection point between Rails and the underlying web server back in the day (which would have often been Apache). Stefan also made several commits to the Rails MySQL adapter — MySQL was by far the most popular database for Rails apps back then — and his GitHub features a special version of MySQL optimized for Rails, as well as LogJam, a Rails monitoring application.

Stefan did a ton of work at a pivotal time for Rails, so all of us who make a living from Rails today should be grateful for his work. Thank you Stefan!