Eileen Uchitelle:

In total the project took a year and a half to upgrade from Rails 3.2 to Rails 5.2. Along the way we took time to clean up technical debt and improve the overall codebase while doing the upgrade. Below we’ll talk about how we upgraded Rails, lessons we learned and whether we’d do it again.

Congrats to Eileen and the team on this massive effort! Click through to read how they did it and the lessons the learned along the way.