Symfony 2 is rapidly changing at very fast speed. With a two month, Fabien have released almost 4 versions of Symfony2. You will enjoy coding more, if you will use this framework.
Fabien had corrected his mistake that he did in Symfony2.0.0. In Symfony 2.0.0, fabien had forget to include admin bundle and their has been some problem of mapping like one to many relation . But in Symfony2.0.7, he corrected.
ohh i forget to tell you the best part of the version released after symfony2.0.0 is that Installation, configuring symfony2 on local machine or configuring database, you felt someone is sitting near to you and telling you the instruction.
Another best thing about symfony2 framework is his command line interface. its damm awesome.
Thanks Fabien for giving this lovely framework.