The first development release of Zend Framework 2.0 was released on August 6, 2010. Approximately two years later, and lots of effort later, Zend and the community released Zend Framework 2.
Of course the new Zend Framework is faster, better and shinier ;)
The new Zend Framework Library has lots of new components. I will write articles about them in the near future.
The Zend Framework has now a new Module Manager. I hope we will soon have hundreds of unofficial modules on Github we can choose from based on Zend Framework 2's new Module Manager. Combined with the advantages of composer, a package manager for php i think development in the php world got a lot easier and funnier for us developers. The PSR-0 standard supported by composer, the Zend Framework 2 and other libraries like Symfony 2 make it possible to mix components of different projects into one application. I will cover this topic in a separate article sometimes soon.