PHP 5.3 is shaping up to be one of the biggest PHP releases ever. Various important performance improvements and features are included in this release. While the end of the talk will be reserved for some hints on potential issues when upgrading, the focus will be on giving an overview about the key new features:

* Key performance improvements
* Namespaces
* Other syntax additions
* MySQLND driver
* Phar
* New extensions


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very useful thanks