[Bug 1948698] Re: Update tzdata to version 2021e

[Launchpad Bug Tracker]

This bug was fixed in the package tzdata - 2021e-0ubuntu0.21.04

---------------
tzdata (2021e-0ubuntu0.21.04) hirsute; urgency=medium

  * New upstream release (LP: #1948698), affecting the following timestamp:
    - Palestine will fall back 2021-10-29 (not 2021-10-30) at 01:00.
  * Update ICU timezone data files which are utilized by php to 2021a3.
  * Dropped the patches which were cherry-picked from upstream as the
    situation is somewhat less confused now.

 -- Brian Murray <brian at ubuntu.com>  Mon, 25 Oct 2021 16:17:48 -0700

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

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

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https://bugs.launchpad.net/bugs/1948698

Title:
  Update tzdata to version 2021e

Status in tzdata package in Ubuntu:
  In Progress
Status in tzdata source package in Bionic:
  Fix Released
Status in tzdata source package in Focal:
  Fix Released
Status in tzdata source package in Hirsute:
  Fix Released
Status in tzdata source package in Impish:
  Fix Released

Bug description:
  New upstream version affecting the following timestamp:

  $region/$timezone = Asia/Gaza

  Verification is done with 'zdump'. The first timezone that gets
  changed in the updated package is dumped with 'zdump -v
  $region/$timezone_that_changed' (this needs to be greped for in
  /usr/share/zoneinfo/). [For example: 'zdump -v Asia/Gaza'.] This is
  compared to the same output after the updated package got installed.
  If those are different the verification is considered done.

  [Test Case for all releases]
  1) zdump -v Asia/Gaza 2021

  For releases with ICU timezone data verification is done using the following with dates before and after the change:
  [Test Case for releases >= 20.04 LTS]
  1) sudo apt-get install python3-icu
  2) python3 -c 'from datetime import datetime; from icu import ICUtzinfo, TimeZone; tz = ICUtzinfo(TimeZone.creat eTimeZone('Pacific/Apia')); print(str(tz.utcoffset(datetime(2021, 9, 26))))'

  Additionally, an upstream update of tzdata removed the 'old' SystemV
  timezones, so we should ensure that they are kept in Ubuntu 20.04 LTS
  and earlier releases. Subsequently, these should be checked for using
  the following:

  [Test Case for releases <= 20.04 LTS]
  diff <(zdump -v America/Phoenix | cut -d' ' -f2-) <(zdump -v SystemV/MST7 | cut -d' ' -f2-)

  Nothing should be returned by the above command.

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