Update: Riven X 0.6 is now available.
Riven X 0.5 is now available. The most important new feature is the edition manager, which will allow owners of the CD edition as well as owners of the various DVD editions to use Riven X. It should be noted that optical disc swapping is not supported yet, which means that CD edition owners should do a full install for the time being. Other changes include performance improvements and a large amount of bug fixes.
There is a number of outstanding issues in this version, namely one that will badly affect single-processor machines (see bug #70). I will try to remedy this in the early 0.6 builds, which will become available through Sparkle.
Riven X 0.6 will be a more interesting releasing focusing on missing engine features, such as transitions, cursors and so forth. For detailed information, see the 0.6 milestone page.