upgrade upgrades only installed packages, and only when it can do so without adding/removing other packages. dist-upgrade will do the same, plus upgrade packages that have dependency changes. If package A v1 depends on package B, but package A v2 depends on package C instead, using upgrade will keep your package A at v1, while dist-upgrade will install the new dependency and upgrade package A to v2.
full-upgrade is dist-upgrade, it got renamed because of the possible ambiguity (one could think that it upgrade your distribution, like from debian 11 to 12)
upgradeupgrades only installed packages, and only when it can do so without adding/removing other packages.dist-upgradewill do the same, plus upgrade packages that have dependency changes. If package A v1 depends on package B, but package A v2 depends on package C instead, usingupgradewill keep your package A at v1, whiledist-upgradewill install the new dependency and upgrade package A to v2.great explanation, thank you :)
Can you also please elaborate on what full-upgrade does?
full-upgrade is dist-upgrade, it got renamed because of the possible ambiguity (one could think that it upgrade your distribution, like from debian 11 to 12)