On the Symfony blog Fabien Potencier has posted about the roadmap to a final release for the Symfony2 version of the popular framework including some of the things that will and will not change after the release.
We are now ready to release Symfony 2.0 final. As we have made some significant changes in the last couple of weeks, we are publishing another release candidate (RC5) today and we will wait for a week before releasing Symfony 2.0 final on Thursday 28th.
The upgrade to Symfony2 is just a few commands away and there's a large list of components that are set and will not be changed moving forward including the DependencyInjection, Finder, Locale, Routing and Validator.
Symfony 2.1 will be the first release with all the components with a public stable API. And for components that already have a public API in 2.0, 2.1 will be the occasion to add even more classes and methods to it.