[Bug 2095233] Re: tzdata 2025a release

[Benjamin Drung]

Backport change from exchange-calendars 4.9-2 to oracular.

** Patch added: "exchange-calendars_4.5.5-2ubuntu0.1.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/tzdata/+bug/2095233/+attachment/5866101/+files/exchange-calendars_4.5.5-2ubuntu0.1.debdiff

** Also affects: exchange-calendars (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: exchange-calendars (Ubuntu)
   Importance: Undecided => High

** Changed in: exchange-calendars (Ubuntu)
       Status: New => Fix Released

** No longer affects: exchange-calendars (Ubuntu Focal)

** No longer affects: exchange-calendars (Ubuntu Jammy)

** No longer affects: exchange-calendars (Ubuntu Noble)

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https://bugs.launchpad.net/bugs/2095233

Title:
  tzdata 2025a release

Status in exchange-calendars package in Ubuntu:
  Fix Released
Status in tzdata package in Ubuntu:
  Fix Released
Status in tzdata source package in Focal:
  Fix Committed
Status in tzdata source package in Jammy:
  Fix Committed
Status in tzdata source package in Noble:
  Fix Committed
Status in exchange-calendars source package in Oracular:
  New
Status in tzdata source package in Oracular:
  Fix Committed

Bug description:
  [ Impact ]

  The 2025a release contains the following changes:

  * Paraguay adopts permanent -03 starting spring 2024
  * No leap second on 2025-06-30

  [ Test Plan ]

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

  * python: test_2025a
  * python-icu: test_2025a (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).

  This tzdata release causes the postgresql autopkgtest to regress (see
  bug #2098518)

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