The smallest fix is the most critical release you will make to your software.
It is the most critical because it is the most overlooked.
“I ran it on my machine.”
“It’s just this one isolated thing.”
“It won’t affect anyone.”
“We don’t have to tell anyone we’re deploying it.”
Because it’s small we decide (for some odd reason) to treat it differently than our most significant releases and as such when something goes wrong, it generally stems from those mini releases (hotfixes, patches, service packs) than the big ones.
Treat your smallest releases with the same fervor and dedication as you do your largest ones.