OS versions

[Brewer]

Wondering if anyone could explain the difference between the MU versions?
IE 3.1.2 MU1
3.1.2 MU2
3.1.2 MU3

Are you able to upgrade from one version to the other?

Thanks

[Josh26]

"Maintenance Upgrade" is another way of saying "service pack".

You certainly can upgrade between MU levels.