Porting a library from non-namespaced to properly-namespaced code is fairly significant, and there should be little-to-no backwards incompat. issues between pre

Porting a library from non-namespaced to properly-namespaced code is fairly significant, and there should be little-to-no backwards incompat. issues between pre-php-5.3 and post-php-5.3. The difference is a fairly large undertaking both in code size and technical challenge.