[Bug 2015513] Re: apt list --upgradeable does not show what can be upgraded!

[Gordon Lack]

Doesn't alter the point that if "apt --list --uprgadeable" doesn't
report what "apt update" would update then it makes it impossible to
script a check for whether there is anything to update.

And given that KDE no longer has any update warning in the System Tray
such a facility is needed, otherwise you'll never know that *any* update
is pending.

Since "apt update" is able to decide *not* to update a package it should
be possible for "apt --list --uprgadeable" to *not* report that it is
upgradeable.

As for phasing, "aptitude safe-upgrade" totally ignores it all anyway.
(Perhaps that's a bug?).

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https://bugs.launchpad.net/bugs/2015513

Title:
  apt list --upgradeable does not show what can be upgraded!

Status in apt package in Ubuntu:
  Opinion

Bug description:
  Packages are now being released in Phased updates.

  However, it seems that whereas apt (and apt-get, and even Discover?)
  are aware of this, the command, "apt list --upgradeable" is unaware of
  it and will report that there are upgradable packages which apt(-get)
  upgrade will *not* in fact install.

  This makes it impossible(?) to script update notifications, which are
  needed as Plasma 5.27 no longer has an Updates entry in the System
  Tray - see bug #2009761.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.10
  Package: apt 2.5.3
  ProcVersionSignature: Ubuntu 5.19.0-38.39-generic 5.19.17
  Uname: Linux 5.19.0-38-generic x86_64
  ApportVersion: 2.23.1-0ubuntu3.1
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: KDE
  Date: Fri Apr  7 00:19:33 2023
  InstallationDate: Installed on 2022-05-04 (337 days ago)
  InstallationMedia: Kubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419)
  SourcePackage: apt
  UpgradeStatus: Upgraded to kinetic on 2022-11-12 (145 days ago)
  mtime.conffile..etc.cron.daily.apt-compat: 2022-05-04T17:22:10.420246

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