The update makes some fine-tuning adjustments to the rules, and adds improvements, additional fixes and eradicates bugs for a better experience.
The v1.04 update shifts the balance towards the Soviet side, most noticeably in the Case Blue campaign. The Soviets receive an extra 700 infantry per round in July and August (10k per month) and 1,400 extra per round in September and October (20k per month). Additional improvements are an added variant for Fog of War in the statistics for players who donít want to be able to see the Soviet force size and composition. Oil is also more constrained in this update, with 2k less oil given to Germany at the start, with less in August and September.
There are a number of fixes as well, such as fixing the U-2 to act as a bomber and not as a kamikaze interceptor, and fixing the bug with the avoid Krasnodar, Grozny, and Baku cards not working properly. The v1.04 update also fixed a few problems with crashes in certain situations.