Hi, Criss. Steve here. I had written a long comment about how I couldn't get the thumbnails to display properly. But then I happened to think of plugin conflicts and sure enough, I was using a plugin called LazyLoader that's part of my Pagelines Framework premium theme. On long pages it doesn't load images until the image appears on screen, and I guess there was a conflict. Just FYI in case you get a report or question about thumbnails not showing.
Otherwise, on your Changelog page, your most recent entry is for 2.3.0, but the latest version is 2.0.3.