2026.15:
- Fixed a screen rotation bug on iPhone

2026.14:
- Fixed a small bug

2026.13:
- Fixed a small bug

2026.12:
- Fixed a Gattai-3 bug in the Daily Challenge
- New high contrast option

2026.11:
- Fixed a small bug

2026.10:
- Fixed a visual bug in Classic puzzles
- Fixed a small crash

2026.9:
- Fresh puzzles
- New option to play Jigsaw with colorless zones

2026.8:
- Tweaked highlight coloring
- Fixed a Killer bug in the Daily Challenge
- Added a reset statistics button

2026.7:
- Long-press to enter pencil marks (enable in Settings)
- Fixed statistics and dark mode readability
- Fresh puzzles

2026.6:
- Fixed a few small bugs

2026.5:
- Fixed a crash in the statistics

2026.4:
- Auto Pencil Marks: automatically fill in all pencil marks (Premium)
- Candidate Filter: highlight cells containing a specific candidate

2026.3:
- Fixed a crash when completing a puzzle
- Toggle a cell value by tapping the number again
- Improved hint visuals

2026.2:
- Option to hide the clock
- Customizable pencil markings
- 7-day free trial

2026.1:
Biggest update in 15 years:
- 12 puzzle variants including Killer, Samurai, Flower, and Kazaguruma
- Daily Challenge with streaks
- 13 color themes, 14 symbol styles
- Complete redesign