How can I determine what the latest version is for my N95?
And what will the next version include of improvements and new features?
I usually just download and install. If it's a new version it will say while you're installing ("replace x.y (z) with x.y (z+1)?").
It would be nice to have a version number somewhere more visible though, perhaps with a changelog. Maybe even an RSS feed or mailing list for update notifications.
And when do you plan to release a new version?