- Puzzle difficulty rating function introduced [Rainer Popella]
- Themes functionality reimplemented [Bart Uliasz]
- Reworked pencil marks look and behaviour [Bart Uliasz]
- New "Hint" strategies (Simple Coloring Type 1 and 2, XY-Chain) [Rainer Popella]
- Existing "Hint" strategies improvements [Rainer Popella]
- Hint usage added to puzzle stats [Bart Uliasz, Rainer Popella]
- Added option to choose filters when random puzzle button is clicked [Bart Uliasz]
- Visual keyboard improvements and fixes [Bart Uliasz]
- Lots of bugfixes and improvements [Bart Uliasz, Rainer Popella]
- New translation to Arabic! [E2EEAES256]
- Existing translations updates [Bart Uliasz, Claudio Strizzolo, Ettore Atalan, Joonas Reinholm, Manuel Tassi, Nico, Rainer Popella, Stankendesokies, Yurt Page, zatrit]
