I was messing around with my Docker and just pulled a 400MB Home Assistant update. Which is strange as I just updated it a couple days ago. Anyone know what's in the update? Updating my HA container didn't break anything.
Depends which bit changed. Docker images are layers built on top of each other; if they only changed the final layer then all the others are the same as the ones you've already downloaded, if they changed the base image then everything is considered new and needs to be downloaded again.