Cookedcomps and the GUID

Hello,

I noticed that the files inside the folder

…../Content/Packages/fs-base-ui/cookedcomps

are all having a {GUID} as prefixes (file name).

Why is that? And will these file names be regenerated when updating the SIM (e.g SU3 → SU4 or even SU4Beta → SU4Final)?

Cheers