MODx Team has released the most awaited MODx Revolution 2.0.0-pl. The Revolution version completely differs from MODx Evolution version. It uses the database modeling framework (xPDO).
The MODx Revolution model supports multiple sites on one core install, install the core outside of webroot, pick any name for the manager and assets directories, change and restructure every manager menu option. Now MODx Revolution version is a better candidate for larger sites with lots of traffic.
The new framework supports override system. You can now extend or override any part of the MODx core cleanly and simply, all the while maintaining a clean upgrade path for future releases. Now you can run multiple sites from single MODx installation. Read more here http://s3url.in/aT