What is the preferred way of upgrading from 7.3 with aptitude? On the wiki https://wiki.debian.org/Aptitude https://wiki.debian.org/Aptitude they say dist-upgr

What is the preferred way of upgrading from 7.3 with aptitude? On the wiki https://wiki.debian.org/Aptitude https://wiki.debian.org/Aptitude they say dist-upgrade is no longer recommended, I am a bit confused (I don't keep up with linux world very much, I am just a linux hobbyist). Thanks.