The posts you've seen are development posts so that the team can keep up to date with what everybody's doing. Official releases will be made once Quib decides there've been enough changes/additions to warrant them.
The general rule is, if you want the most up to date version, watch all the threads, download anything you see, and don't expect too much help with installation, since time spent helping with installation is time not spent working on the mod itself. But I wouldn't worry about it too much, Quib's good about getting out official updated versions as soon as there are enough changes and new maps to make it worth the approval time.
__________________
|