As is mentioned by Matthew Weier O'Phinney (and expanded on by Robert Basic) beginning immediately, the Zend Framework 2 project will no longer require developers to sign a CLA before submitting their code.

In #zf2 news, effective immediately, we no longer require a CLA for #zf2 contributions. Let the pull requests flow!

Robert gives a bit more detail in his post, pointing out the official git repo, the issues list, section on the wiki and the mailing list/IRC meetings. There's also a blog to follow to get the latest updates for the project.

If you'd like to find out more about this new version of the framework, check out this video from ZendCon by Matthew.