Should I upgrade to PHP 5.3?
php, php-5.3, porting
Solution
You might consider upgrading just for the "Improved PHP runtime speed and memory usage" and bug fixes. Source. I would also say that if you are using create_function anywhere, you should upgrade and replace that ugly, nasty mess, with the much cleaner lambda. Here is the migration guide from 5.2.
Problem
PHP version 5.3 has been released, and although it looks great, all my code already works fine. I don't see what this new version offers to justify upgrading and working through possible issues after the upgrade. Should I upgrade anyway just for good practice, or is an upgrade not needed unless I am actually using the new features?