The release notes for this new version:
- Skins galore: 7 more Sokoskinner skins have been found and added to the collection, bringing the total up to 217 Sokoskinner skins.
See the version 1.647 release notes for download instructions.
Thanks to Joris Wit for finding these 7 skins.
A feature comparison of the main Sokoban programs can be found in the Sokoban Wiki.