What were the main trends and the novelty of the conditions for the internal development of the USSR in the postwar years?

In the postwar years, the Soviet Union was faced with the task of restoring the national economy. The novelty was as follows:

Industrial enterprises began to switch to the production of peaceful products.
The State Defense Committee was abolished.
The military commissariats were abolished.
The solution to economic issues consisted in the implementation of the fourth five-year plan.

The country was faced with political tasks consisting in strengthening socialism, both on its territory and in a number of European countries that had embarked on this path.