Building OGRE From Source
For developers with more experience, building OGRE from source is usually the more attractive option. For some, it is the only option as prebuilt binaries are not available. Source provides the fastest access to bug fixes and allows the developer to debug any aspect of their code or OGRE. It is also necessary for contributing patches.|
For the latest stable code (all platforms), you can check out the source from Bitbucket.
The first V2+ branch is v2-1. Although this branch is still under development, it is pretty stable.
[+] Quick Mercurial Guide (Click the + sign to view)