What were the reasons for upgrading to Rails 3.0 in the first place?

tptacek · on Jan 5, 2012

Are you asking why one might, in general, prioritize that upgrade? Rails 2.x to Rails 3 is a pretty big deal. For a huge production site, the "Merb-ificiation" (modularization) of Rails might be a performance/maintenance win.

(I have no idea why Airbnb in particular upgraded, but the 2->3 upgrade is in general very much worth it --- the new router and Arel alone are sufficient wins).

rboyd · on Jan 5, 2012

One of the major reasons for using a framework like rails is to take advantage of open source code that frees you to spend time focusing on your company's core competencies. Some of the most useful gems in the rails ecosystem no longer (or never did) support rails 2. This is the biggest reason in my mind, but release notes on rails 3 itself are here http://edgeguides.rubyonrails.org/3_0_release_notes.html