New comment by simvux on void-packages repository

https://github.com/void-linux/void-packages/pull/45500#issuecomment-1870774867

Comment:
Out of curiosity, what is the process for updating a core package like this? 

It seems that we're bumping the revision for packages to force them to re-build with the new gcc/glibc version. However; how do we know which packages should be rebuilt and which shouldn't? 
Or are we using some sort of script that automatically bumps the revision for anything that depends on a specified package? 

After merge, will there still be packages that are built against the old glibc version but at runtime will link against the new installed glibc version?