The Zend Framework has updated their documentation site with a very handy feature for those that may not be working with the latest version of the framework - the ability to select a version of the framework to view the documentation for.

As of the time of this post, they have versions 1.10 back through the original 1.0 of the documentation as well as having them in six different languages. The site's search can also be limited to a certain version as well, making it super simple to find just what you're looking for.

Check out their updated documentation site to see these new features in action.