- New SUID (Sudoku Unique ID) to identify any valid puzzle [Bart Uliasz]
- New "Play random unsolved puzzle" button if there's no resume [ReisMiner]
- New "Hint" strategies (Remote Pair, BUG: Bi-value Universal Grave) [Rainer Popella]
- Unsolvable puzzle alert [Bart Uliasz]
- Keyboard UI changes [Bart Uliasz]
- Translations updates [Bart Uliasz, Joonas Reinholm, Libor Rejč, Rainer Popella]