New puzzle type – Buttleships.
We have also added 200 other new puzzles since the previous update: Flower-4 Sudoku (41-60), Windoku (61-80), Argyle Sudoku (61-80), Asterisk Sudoku (61-80), Skyscraper Sudoku (61-80), Low-High Sudoku (61-80), Nonconsecutive Sudoku (61-80), Anti-King Sudoku (61-80), Disjoint Groups Sudoku (61-80), Bold X Sudoku (61-80).

Fixed a problem with slow filter and puzzle directories loading.

New puzzle type – Number Cross.
We have also added 140 other new puzzles since the previous update: Sudoku X (141-160), Killer Sudoku (81-100), Jigsaw Sudoku (121-140), Sohei Sudoku (41-60), Wing-5 Sudoku (41-60), Butterfly Sudoku (41-60), Windmill Sudoku (41-60).

Fixed a bug in Sudoku Wing-3.

New puzzle type – Tapa.
We have also added 150 other new puzzles since the previous update: Lighthouses (61-75), Norinori (61-75), Yajilin (61-75) Rainclouds (61-75), Araf (61-75), Meadows, (61-80), Rukkuea (61-75) Heyawake (61-75), Sumo Sudoku (21-40), Sudoku (361-400).

New puzzle type – Wamuzu.
We have also added 130 other new puzzles since the previous update: Akari (61-75), Fillomino (61-75), Masyu (61-75), Kuromasu (61-75), Minesweeper (61-75), Tohu-Wa-Vohu (61-75), Creek (61-75).

New puzzle type – Square Jam.
We have also added 130 other new puzzles since the previous update: Frame Sudoku (51-60), Kropki Sudoku (51-60), Greater-Than Sudoku (51-60), Tents and Trees (71-80), Corral (61-75), Yin Yang (61-75), Koburin (61-75), Bridges (61-75), Mochikoro (61-75), Walls (61-75).

New puzzle type in the Multi-Sudoku category – Sumo Sudoku.
We’ve also added another 135 puzzles: Kakuro (100-120), Hitori (100-120), Hidoku (91-105), Clueless Explosion Sudoku (21-40), Clueless Special Sudoku (21-40), Shogun Sudoku (21-40), Odd-Even Sudoku (61-80).