minecraft "big" update: we added 1 new mob and 3 features
terraria "small" update: let's add like 9 cool items, weapons, and mounts that massively affect gameplay and make players think in new ways, shove in a hidden music track or two, and maybe even a new minibiome for really desperate cases ;)
(don't get me wrong, i don't hate either of the two games; in fact, i love them both, and they both formed roughly equal parts in my childhood... that said, MC got ruined sadly :'c)