Upd. 03.06.2015: 0.15.1 with bug fixes is out.
It turns out that the latest version has a lot of critical bugs. Thus, the next release will be mainly about fixing them.
Among the bugs:
+ FC when you enter Notes in two-column mode
+ FC when you cancel achievements dialog
+ 'Now!' in Days/Priorities dialog does not refresh the data set
+ Pomodoro crashes on period change if the app is in the background
+ Project sub-actions does not get parent set (thus becoming simple actions) when coming from the Weekplan page
+ some more.
All of these were reported by you, either by FC reports or by reviews or by direct letters - thank you! And a special thank to one particular user, who constantly keeps giving us feedback almost after each update!