Almost all changes are 'under the hood' V5 has added support for global skin settings to change fonts, colors, sizes, etc and the ability to reorder or rename menus all from one settings file. There are a few graphic tweaks and some new features. You can read the changelog in the read_me, there is a link in the first post.
You should like yours better, you coded it
My next step really is to get the sat hardware and work on the sat menus some more.
v5.0 is not meant to be a completely new release. Its a "service pack" style release that is still based on the original ideas and code from v1.