Quora question about that: http://www.quora.com/How-does-Facebook-implement-feature-switching-including-versioning/ http://www.quora.com/How-does-Facebook-impl

Quora question about that: http://www.quora.com/How-does-Facebook-implement-feature-switching-including-versioning/ http://www.quora.com/How-does-Facebook-implement-feature-swi...