https://store.steampowered.com/app/1966470/Voxelgram__DLC_1/
This one is big. If you face any issues after updating, you can roll back to 1.9.11, previous released version in beta branch. After update game will import progress to new save file, so in case of any corruption you can roll back safely.
Dioramas larger than 40x24x40
40x24x40 was initially choosen due to performance reasons. But I grow as a programmer, and 5 years since release was enough to figure out how to deal with this problem. So this limit is gone. DLC is built of larger dioramas, workshop sets can also be now bigger!
Random Puzzles progress saving
This was one was requested multiple times, but it required major changes to the game. But now it's here! Progress for procedural puzzles is now saved. There is 1 slot for each combination of size and type, so you can have multiple puzzles in progress if you desire.
UI improvements
UI was improved in multiple places. Mostly in diorama/puzzle browser, where selector is now scrollable, instead of the previous weird system with button swapping. Multiple navigation issues on game pad were also resolved.
Performace
Game should run a bit faster now, save should be smaller. But as it's based on Compute Shaders, this might cause unexpected results, if you are facing any issues, especially game breaking one, please let me know.