Since we often get questions about the new Ogre versions in general and more specifically about the state of Ogre 2.1, Matias took the time to prepare an FAQ article in the wiki that provides answers to the most frequently asked questions. Over time we will expand this article to include new questions.
Link: Ogre 2.1 FAQ in the Ogre wiki.
For a more general overview about the Ogre versions, we also have our existing “What version to choose” page to provide guidance.