I used to make an
to upgrade my system from 12.04.X to 12.04.X+1, but now I have doubts if
is better or even if that command classified as an option to such minor upgrades. In the
do-release-upgrade man page one can read
Upgrade the operating system to the latest release
but is not clear to me if that mean latest minor version or latest major version, because latest major version could be seem even like another OS and not a version of the same OS.