You can read the changelog by clicking on the Changelog link on the right ->
Same goes for the download, just click the Download Black Dragon link on the right ->
DO READ THOSE CHANGELOGS! Read them, learn them, forward, backwards, diagonal and mirrored, you have to be able to read them out of your mind while hanging upside down, blindfolded in a room full of annoying and distracting noises and being tickled by Google's scientist apes. It saves you stupid questions about the existence of certain (definitely-not) navigation bar related features.