I installed the version of apt from trusty-proposed and then completed an upgrade from Trusty to Xenial using that version of apt with the libgcrypt packages installed.
>From /var/log/dist-upgrade/apt-term.log we can see the following: Processing triggers for libc-bin (2.19-0ubuntu6.7) ...^M (Reading database ... ^M(Reading database ... 5%^M(Reading database ... 10%^M(Reading database ... 15%^M(Reading database ... 20%^M(Reading database ... 25%^M(Reading database ... 30%^M(Reading database ... 35%^M(Reading database ... 40%^M(Reading database ... 45%^M(Reading database ... 50%^M(Reading database ... 55%^M(Reading database ... 60%^M(Reading database ... 65%^M(Reading database ... 70%^M(Reading database ... 75%^M(Reading database ... 80%^M(Reading database ... 85%^M(Reading database ... 90%^M(Reading database ... 95%^M(Reading database ... 100%^M(Reading database ... 232996 files and directories currently installed.)^M Preparing to unpack .../libgcrypt20_1.6.5-2_i386.deb ...^M Unpacking libgcrypt20:i386 (1.6.5-2) over (1.6.1-2ubuntu1.14.04.1) ...^M Selecting previously unselected package libgcrypt20:amd64.^M Preparing to unpack .../libgcrypt20_1.6.5-2_amd64.deb ...^M Unpacking libgcrypt20:amd64 (1.6.5-2) ...^M Processing triggers for libc-bin (2.19-0ubuntu6.7) ...^M Setting up libgcrypt20:amd64 (1.6.5-2) ...^M Setting up libgcrypt20:i386 (1.6.5-2) ...^M Processing triggers for libc-bin (2.19-0ubuntu6.7) ...^M Selecting previously unselected package libsystemd0:amd64.^M (Reading database ... ^M(Reading database ... 5%^M(Reading database ... 10%^M(Reading database ... 15%^M(Reading database ... 20%^M(Reading database ... 25%^M(Reading database ... 30%^M(Reading database ... 35%^M(Reading database ... 40%^M(Reading database ... 45%^M(Reading database ... 50%^M(Reading database ... 55%^M(Reading database ... 60%^M(Reading database ... 65%^M(Reading database ... 70%^M(Reading database ... 75%^M(Reading database ... 80%^M(Reading database ... 85%^M(Reading database ... 90%^M(Reading database ... 95%^M(Reading database ... 100%^M(Reading database ... 232998 files and directories currently installed.)^M Preparing to unpack .../libsystemd0_229-4ubuntu4_amd64.deb ...^M Unpacking libsystemd0:amd64 (229-4ubuntu4) ...^M Processing triggers for libc-bin (2.19-0ubuntu6.7) ...^M Setting up libsystemd0:amd64 (229-4ubuntu4) ...^M Processing triggers for libc-bin (2.19-0ubuntu6.7) ...^M So that looks good for Trusty too. ** Tags removed: verification-needed ** Tags added: verification-done-trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560797 Title: apt does not configure Pre-Depends: before depending package To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1560797/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs