I am asking this out of curiosity after updating my computer...
beforehand, I want to make it clear - as far as I understand - that hibernation is the term for unloading the current state of the operating system into the disk (swap-space) and powering down the system completely in order to be able to resume the system later.
Now for the actual question
Let's say I updated my kernel and let my system into hibernation. When I power on my system again wouldn't it be the newer version of the kernel that is booted and loads the suspended state from swap-space? And thus (Kind of but not really) saving me a reboot? even though rebooting often feels quicker than restoring from hibernation
My hypothesis is that
uname -r changes after updating and hibernating (assuming that the kernel is not immediately reloaded after updating).
I came to think about this after recently enabling hibernation by setting the kernel parameter