Unattended-upgrade starts upgrading packages on dev release 21 days before the release date

[Didier Roche-Tolomelli]

With the default configuration (nothing changed), I see in the development version of ubuntu (disco) that unattended-upgrade is now updating every package first thing after boot.

As you can see below, it didn't update packages from the security pocket, but all packages in the release pocket (mutter, gnome-shell and others just migrated to disco-release).

1. This makes on the development version a PITA, because you don't control your own updates
2. I didn't enroll to update all packages at any time
3. "Software & Updates" tells me it is set to only auto-install security updates, which isn't the case (at least on the development version)

-----
Start-Date: 2019-04-12 07:54:35
Commandline: /usr/bin/unattended-upgrade
Upgrade: runc:amd64 (1.0.0~rc6+git20190307.2b18fe1d-0ubuntu1, 1.0.0~rc7+git20190403.029124da-0ubuntu1)
End-Date: 2019-04-12 07:54:38

Start-Date: 2019-04-12 07:54:41
Commandline: /usr/bin/unattended-upgrade
Upgrade: gir1.2-mutter-4:amd64 (3.32.0-1ubuntu2, 3.32.0+git20190410-1ubuntu1), libmutter-4-0:amd64 (3.32.0-1ubuntu2, 3.32.0+git20190410-1ubuntu1), mutter-common:amd64 (3.32.0-1ubuntu2, 3.32.0+git20190410-1ubuntu1)
End-Date: 2019-04-12 07:54:44

Start-Date: 2019-04-12 07:54:46
Commandline: /usr/bin/unattended-upgrade
Upgrade: gnome-shell-common:amd64 (3.32.0-1ubuntu1, 3.32.0+git20190410-1ubuntu1), gnome-shell:amd64 (3.32.0-1ubuntu1, 3.32.0+git20190410-1ubuntu1)
End-Date: 2019-04-12 07:54:49

Start-Date: 2019-04-12 07:54:51
Commandline: /usr/bin/unattended-upgrade
Upgrade: fwupd-signed:amd64 (1.5+1.2.5-1, 1.6+1.2.5-1ubuntu1), fwupd:amd64 (1.2.5-1, 1.2.5-1ubuntu1)
End-Date: 2019-04-12 07:54:53

Start-Date: 2019-04-12 07:54:56
Commandline: /usr/bin/unattended-upgrade
Upgrade: libopenexr-dev:amd64 (2.2.1-4build1, 2.2.1-4.1), libopenexr23:amd64 (2.2.1-4build1, 2.2.1-4.1)
End-Date: 2019-04-12 07:54:57

Start-Date: 2019-04-12 07:55:00
Commandline: /usr/bin/unattended-upgrade
Upgrade: python3-apport:amd64 (2.20.10-0ubuntu26, 2.20.10-0ubuntu27), apport-gtk:amd64 (2.20.10-0ubuntu26, 2.20.10-0ubuntu27)
End-Date: 2019-04-12 07:55:01

Start-Date: 2019-04-12 07:55:04
Commandline: /usr/bin/unattended-upgrade
Upgrade: libfwupd2:amd64 (1.2.5-1, 1.2.5-1ubuntu1)
End-Date: 2019-04-12 07:55:04

Start-Date: 2019-04-12 07:55:07
Commandline: /usr/bin/unattended-upgrade
Upgrade: mutter:amd64 (3.32.0-1ubuntu2, 3.32.0+git20190410-1ubuntu1)
End-Date: 2019-04-12 07:55:07

Start-Date: 2019-04-12 07:55:10
Commandline: /usr/bin/unattended-upgrade
Upgrade: apport-retrace:amd64 (2.20.10-0ubuntu26, 2.20.10-0ubuntu27)
End-Date: 2019-04-12 07:55:11

Start-Date: 2019-04-12 07:55:13
Commandline: /usr/bin/unattended-upgrade
Upgrade: apport:amd64 (2.20.10-0ubuntu26, 2.20.10-0ubuntu27)
End-Date: 2019-04-12 07:55:16
-----------

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: unattended-upgrades 1.10ubuntu2
ProcVersionSignature: Ubuntu 5.0.0-8.9-generic 5.0.1
Uname: Linux 5.0.0-8-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Fri Apr 12 08:12:34 2019
InstallationDate: Installed on 2018-05-24 (322 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
SourcePackage: unattended-upgrades
UpgradeStatus: Upgraded to disco on 2019-01-08 (93 days ago)

[Balint Reczey (rbalint)]

The behavior is intentional:
https://github.com/mvo5/unattended-upgrades/pull/149

After the release the release pocket does not change and only security updates and their dependencies from the release pocket will be upgraded/installed.

[Balint Reczey (rbalint)]

Just sent an email about this thus I close the bug:
https://lists.ubuntu.com/archives/ubuntu-devel/2019-April/040658.html