With the update to version 0.8.4, we are releasing a few new features in addition to some bug fixes. In addition to a new offensive level and two Christmas stories, there are also new settings for a new game. We have split Hard Mode into smaller modes, added a few new modifications and made balancing changes.
It is now possible to select only some of the Hard Mode options. If you select all Hard Mode sub-options, the game will be slightly more difficult than before. Game saves from version 0.8.3 should be compatible with the new update, but the new stories can only occur in a new game. If you still encounter errors, you can switch back to version 0.8.3 at any time via the Steam beta. And here are the full patch notes for 0.8.4: Features:

• Added new difficulty settings, hard mode has been slightly rebalanced and divided into: - Hard times - Ailing troop - Outsider - Out of luck - Incompatible ammunition
• Added two new stories around Christmas
• Added new offensive level MG Decoy

• Added a bonus for Trained in first aid in Assist in the hospital
• Added a chance of mood Disgusted when failing to loot corpses

• Fixed game over in battle not working when a soldier is in the hospital in the camp
• Fixed soldiers may not automatically return even if they are in close range at the end of a battle
• Fixed some stories that deal with the death of a soldier happening for a soldier who didn't know the dead comrade
• Fixed an error when a machine gun is repositioned while it's firing
• Fixed not cleaning up the Drive away MG-troop task at the end of a battle, which leads to an error in the camp
• Fix an error happening in camp, when a soldier lost his glasses in battle and died