[Bug 2104284] Re: tzdata 2025b release

[Benjamin Drung]

** Changed in: tzdata (Ubuntu Focal)
   Importance: Undecided => High

** Changed in: tzdata (Ubuntu)
   Importance: Undecided => High

** Changed in: tzdata (Ubuntu Noble)
   Importance: Undecided => High

** Changed in: tzdata (Ubuntu Jammy)
   Importance: Undecided => High

** Changed in: tzdata (Ubuntu Oracular)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/2104284

Title:
  tzdata 2025b release

Status in tzdata package in Ubuntu:
  New
Status in tzdata source package in Focal:
  New
Status in tzdata source package in Jammy:
  New
Status in tzdata source package in Noble:
  New
Status in tzdata source package in Oracular:
  New

Bug description:
  [ Impact ]

  The 2025b release contains the following changes:

  * New America/Coyhaique zone for Aysén Region in Chile, which moves
    from -04/-03 to -03. It will not change its clocks on 2025-04-05.
  * Improve historical data for Iran

  [ Test Plan ]

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

  * python: test_2025b

  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).
  * The oracular autopkgtest for exchange-calendars needs to use 4.5.5-2ubuntu0.1
  * The focal autopkgtest for postgresql-12 needs to use 12.22-0ubuntu0.20.04.3

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