I say “recently” in a relative way, more so countries that have split in the last century. Places like North and South Korea, Taiwan and China, former USSR states, etc.
Has enough time passed that these countries separated have major changes in their languages yet?
Many former USSR states had their own languages before the union, and have culturally shifted to be more aligned with the west
A few of the stans switched (back?) to a Latin alphabet at the fall of the USSR. Kazakhstan is in the process of doing the same.