Landing the apt piece of this without the unattended-upgrades piece has regressed the around-the-clock distribution of unattended-upgrades downloads (which is enabled by default for security updates in 16.04).
The plan is to follow up with unattended-upgrades SRU today to get this all landed before 16.04.3 so that the point release images are in a coherent state.
apt must also declare a versioned Breaks: against versions of unattended-upgrades that don't implement --download-only. Otherwise, the infrastructure consequences of a future apt update published to the security pocket without a matching unattended-upgrades update would be severe.
Landing the apt piece of this without the unattended-upgrades piece has regressed the around-the-clock distribution of unattended-upgrades downloads (which is enabled by default for security updates in 16.04).
The plan is to follow up with unattended-upgrades SRU today to get this all landed before 16.04.3 so that the point release images are in a coherent state.
apt must also declare a versioned Breaks: against versions of unattended-upgrades that don't implement --download-only. Otherwise, the infrastructure consequences of a future apt update published to the security pocket without a matching unattended-upgrades update would be severe.