Undebt: How We Refactored 3M Lines of Code Posted by Yelp on Tuesday August 23, 2016 @01:25PM from the engineeringblog.yelp.com dept. http://engineeringblog.yelp.com/2016/08/undebt-how-we-refactored-3-million-lines-of-code.html ( 2 comments | 13 points | on HN )