Version in base suite: 6.1.170+3
Version in overlay suite: 6.1.172+1

Base version: linux-signed-arm64_6.1.172+1
Target version: linux-signed-arm64_6.1.174+1
Base files: linux-signed-arm64_6.1.172+1.dsc
Target files: linux-signed-arm64_6.1.174+1.dsc

-E: version-substvar-for-external-package Depends ${binary:Version} linux-headers-arm64 -> linux-headers-6.1.0-48-arm64 [debian/control:518]
-E: version-substvar-for-external-package Depends ${binary:Version} linux-headers-cloud-arm64 -> linux-headers-6.1.0-48-cloud-arm64 [debian/control:546]
-E: version-substvar-for-external-package Depends ${binary:Version} linux-headers-rt-arm64 -> linux-headers-6.1.0-48-rt-arm64 [debian/control:574]
-W: odd-historical-debian-changelog-version 6.1.170-3 (for native) [debian/changelog:14]
+E: version-substvar-for-external-package Depends ${binary:Version} linux-headers-arm64 -> linux-headers-6.1.0-49-arm64 [debian/control:518]
+E: version-substvar-for-external-package Depends ${binary:Version} linux-headers-cloud-arm64 -> linux-headers-6.1.0-49-cloud-arm64 [debian/control:546]
+E: version-substvar-for-external-package Depends ${binary:Version} linux-headers-rt-arm64 -> linux-headers-6.1.0-49-rt-arm64 [debian/control:574]
+W: odd-historical-debian-changelog-version 6.1.172-1 (for native) [debian/changelog:24]