Why v1.2.0.7 & not 1.2.0.2??

I've been keeping an eye out for the update so I can play with my friends on Xbox Live with the Beta, however, I see that the version seems to be "to much" upgraded

I tried to reinstall the game but it's the same version (1.2.0.7)

When I look on youtube I see that people have 1.2.0.2 & I can't find my current version anywhere when I search.

Any suggestions?