[Bug 1891733] Update Released

[Brian Murray]

The verification of the Stable Release Update for language-selector has
completed successfully and the package is now being released to
-updates.  Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1891733

Title:
  Support better Arabic font

Status in Ubuntu Seeds:
  New
Status in language-selector package in Ubuntu:
  Fix Released
Status in language-selector source package in Focal:
  Fix Released
Status in language-selector source package in Groovy:
  Fix Released

Bug description:
  [Impact]

  Arabic speaking users have requested better rendering of Arabic. This
  proposed upload addresses that wish. Related discussion is being held
  at <https://discourse.ubuntu.com/t/14573>.

  So how is this an SRUable bug fix and not just an enhancement which
  should go to -backports? Well, currently, if you install the Arabic
  language via Language Support, a couple of Arabic fonts packages are
  pulled. But even if you set an Arabic locale, those fonts won't make a
  difference. The explanation is that DejaVu fonts, which also are able
  to render Arabic, have higher fontconfig precedence. The user must
  mess with fontconfig themselves to change the effective font, which is
  a bug. (I can't tell if it ever worked as intended.)

  So to summarize: This is a combination of a bug fix and an
  enhancement.

  [Test Case]

  * Install the language-selector-{gnome,common} packages
    from focal-proposed.

  * Open the Language Support tool and install Arabic.

  * Open a terminal window and run this command:

    LC_CTYPE=ar_EG.UTF-8 fc-match -a | head -10

  * Find that Noto fonts are at the top of the list.

  [Regression risk]

  This will change the effective font for rendering Arabic for some
  users. But the user experience will be improved in those cases, not
  the opposite.

  The change in font will only happen for users with an Arabic locale.
  The risk that other users would be affected by the change is low.

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