For changes: https://bitbucket.org/sarkanyi/bote-libgdx/raw/master/CHANGES

Tutorial! Tap on the yellow question marks.

Tooltips! Hold finger on the research item and after the tooltip is shown, drag it away without lifting it to read what buildings/ships will be unlocked by the next level.

Ships, research, races, sectors, suns, planets, troops all have tooltips now.

Google Drive integration may have bugs, check files on your drive before deleting them from your device.