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

Base version: shim_15.8-1~deb12u1
Target version: shim_16.1-2~deb12u1
Base files: shim-helpers-arm64-signed-template_15.8-1~deb12u1_arm64.deb shim-unsigned_15.8-1~deb12u1_arm64.deb
Target files: shim-helpers-arm64-signed-template_16.1-2~deb12u1_arm64.deb shim-unsigned_16.1-2~deb12u1_arm64.deb

File lists identical on package level (after any substitutions)

Control files of package shim-helpers-arm64-signed-template: lines which differ (wdiff format)
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Version: [-15.8-1~deb12u1-] {+16.1-2~deb12u1+}

Control files of package shim-unsigned: lines which differ (wdiff format)
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Installed-Size: [-1945-] {+2067+}
Version: [-15.8-1~deb12u1-] {+16.1-2~deb12u1+}