Version in base suite: 1+15.8+1~deb12u1
Version in overlay suite: 1+16.1+2~deb12u1

Base version: shim-helpers-amd64-signed_1+15.8+1~deb12u1
Target version: shim-helpers-amd64-signed_1+16.1+2~deb12u1
Base files: shim-helpers-amd64-signed_1+15.8+1~deb12u1_amd64.deb
Target files: shim-helpers-amd64-signed_1+16.1+2~deb12u1_amd64.deb

+W: old-fsf-address-in-copyright-file