[Bug 2079966] Re: tzdata 2024b release

[Launchpad Bug Tracker]

This bug was fixed in the package tzdata - 2024b-1ubuntu2.1

---------------
tzdata (2024b-1ubuntu2.1) oracular; urgency=medium

  * Make remaining legacy timezones selectable in debconf (LP: #2070285)

tzdata (2024b-1ubuntu2) oracular; urgency=medium

  [ Aurelien Jarno ]
  * Build timezones with zic -b 'fat' (Closes: #1084111)
  * tzdata-legacy: bump Replaces: tzdata version to handle the
    Asia/Choibalsan move

  [ Benjamin Drung ]
  * Move UNIX System V zones back from backzone to backwards file
    to keep them unchanged for the stable release updates.

tzdata (2024b-1ubuntu1) oracular; urgency=medium

  * Merge with Debian unstable. Remaining changes:
    - Ship ICU timezone data which are utilized by PHP in tzdata-icu
    - Add autopkgtest test case for ICU timezone data
    - Do not rename NEWS into changelog.gz, this fixes a build failure on
      moment-timezone.js
    - Point Vcs-Browser/Git to Launchpad
  * Update the ICU timezone data to 2024b
  * Add autopkgtest test case for ICU timezone data 2024b

tzdata (2024b-1) unstable; urgency=medium

  * New upstream release (LP: #2079966):
    - Improve historical data for Mexico, Mongolia, and Portugal.
    - System V names are now obsolescent.
    - The main data form now uses %z.
    - Asia/Choibalsan is now an alias for Asia/Ulaanbaatar
  * Add autopkgtest test case for 2024b release
  * Update Asia/Choibalsan to Asia/Ulaanbaatar on upgrade and move
    Asia/Choibalsan to tzdata-legacy
  * Bump Standards-Version to 4.7.0
  * generate_debconf_templates: Work around AttributeError on icu import

 -- Benjamin Drung <bdrung at ubuntu.com>  Tue, 03 Dec 2024 22:34:58 +0100

** Changed in: tzdata (Ubuntu Oracular)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/2079966

Title:
  tzdata 2024b release

Status in tzdata package in Ubuntu:
  Fix Released
Status in tzdata source package in Focal:
  Fix Released
Status in tzdata source package in Jammy:
  Fix Released
Status in tzdata source package in Noble:
  Fix Released
Status in tzdata source package in Oracular:
  Fix Released

Bug description:
  [ Impact ]

  The 2024b release contains the following changes:

  * Improve historical data for Mexico, Mongolia, and Portugal.
  * System V names are now obsolescent.
  * The main data form now uses %z.

  [ Test Plan ]

  Test cases were added to the autopkgtest to cover the testing:

  * python: test_2024b
  * python-icu: test_2024b (only for focal and newer)

  So the test plan is to check that the autopkgtest succeeds.

  [ Other Info ]

  The autopkgtest for chrony is flaky on jammy and newer (see bug
  #2002910).

  There are backward-incompatible changes included:

      Names present only for compatibility with UNIX System V
      (last released in the 1990s) have been moved to 'backward'.
      These names, which for post-1970 timestamps mostly just duplicate
      data of geographical names, were confusing downstream uses.
      Names moved to 'backward' are now Links to geographical names if
      there is an exact match since 1970, and remain Zones otherwise.
      Those needing the previous TZDB behavior, which does not match any
      real-world clocks, can find the old entries in 'backzone'.
      (Problem reported by Justin Grant.)

  We need to exclude this change for the SRU since it can/will break
  user setup (e. g. the user from bug #2055718) and it will break a
  handful of tests (including dateparser, pandas, posrtesql-16). See
  https://bugs.debian.org/1084190

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