[Bug 1700829] Re: -d switch doesn't accurately describe itself

[Launchpad Bug Tracker]

This bug was fixed in the package update-manager - 1:17.10.1

---------------
update-manager (1:17.10.1) artful; urgency=medium

  [ Steve Langasek ]
  * ubuntu-support-status: instead of checking the Release timestamp in
    the releases file for every single package on the system, get the
    release date from distro-info-data because it will always be the same.
    This speeds up the script by > 50% in testing.

  [ Brian Murray ]
  * update-manager: Clarify that the "-d" switch is only for upgrading from
    the latest supported release to the development release, not any release.
    (LP: #1700829)
  * Remove --sandbox (aufs support) as it has been broken for some time and
    was rather unused. (LP: #1605259)

 -- Brian Murray <brian at ubuntu.com>  Wed, 12 Jul 2017 15:03:18 -0700

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https://bugs.launchpad.net/bugs/1700829

Title:
  -d switch doesn't accurately describe itself

Status in ubuntu-release-upgrader package in Ubuntu:
  Fix Released
Status in update-manager package in Ubuntu:
  Fix Released
Status in ubuntu-release-upgrader source package in Artful:
  Fix Released
Status in update-manager source package in Artful:
  Fix Released

Bug description:
  The -d switch for update-manager is documented as 'Check if upgrading
  to the latest devel release is possible'.  This implies that no matter
  what release you are running the -d switch check if you can upgrade to
  the devel release (Artful right now) however, this isn't actually what
  the -d switch does. Right now the -d switch will take you to the next
  unsupported release of Ubuntu, so in a few weeks will upgrade you from
  X to Y (since its unsupported). That's not really what we ant either.

  The -d switch will be changed so that it only upgrades you to the
  development release of Ubuntu if you are running the release
  immediately before the development release. So right now it would only
  work from Zesty to Artful.

  The help documentation for -d needs to be changed to reflect what it
  actually does.

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