Sadly updates don't just remove bugs, but sometimes also add them. Silently adding a bug to previously working code is a lot more bad than silently fixing a bug

Sadly updates don't just remove bugs, but sometimes also add them. Silently adding a bug to previously working code is a lot more bad than silently fixing a bug you didn't know you had is good, so I wouldn't want to have a load of self-updating code snippets in my codebase.