changes-8e18c70.json contains all glibc derivations of the last 10 minor glibc releases available in nixpkgs since rev 8e18c70. (This file can be generated by nix run, which calls get-revisions.rb)

Run ./check-compatibilities.sh to check various combinations of NSS modules and client binaries with differing glibc derivations.
This shows that NSS modules and client binaries of all patchlevels of a minor glibc release (e.g. 2.33) are compatible with each other.