[wp-meta] [Making WordPress.org] #5727: Bump ServeHappy PHP constants to 7.3+

[Making WordPress.org]

#5727: Bump ServeHappy PHP constants to 7.3+
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 Reporter:  SergeyBiryukov  |      Owner:  (none)
     Type:  task            |     Status:  new
 Priority:  normal          |  Milestone:
Component:  API             |   Keywords:
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 Background: #5257, #5279.

 The `SUPPORTED_PHP` value in [source:sites/trunk/wordpress.org/public_html
 /wp-content/mu-plugins/pub/servehappy-config.php servehappy-config.php] is
 currently at 7.3.

 The `SECURE_PHP` and `ACCEPTABLE_PHP` values are at 7.2, last changed in
 [9959] / #5257.

 Since security support for PHP 7.2 and active support for PHP 7.3
 [https://www.php.net/supported-versions.php ended last December], these
 values should be updated. Some context:

 * `SUPPORTED_PHP` is the lowest branch of PHP which is actively supported.
 * `SECURE_PHP` is the lowest branch of PHP which is receiving security
 updates.
 * `ACCEPTABLE_PHP` is the lowest branch of PHP which is still considered
 "acceptable" in WordPress. Sites with a version lower than this will see
 the ServeHappy dashboard widget urging them to update.

 Based on the above, it seems like:
 * `SUPPORTED_PHP` should be updated to 7.4.
 * `SECURE_PHP` should be updated to 7.3.
 * `ACCEPTABLE_PHP` should also be updated to 7.3, since we want users to
 have a secure version.

 We can also discuss whether we want to bump the `RECOMMENDED_PHP` version
 to 8.0, however, given the large number of breaking changes there and
 unknown state of plugin compatibility, it might be a bit premature at this
 time.

-- 
Ticket URL: <https://meta.trac.wordpress.org/ticket/5727>
Making WordPress.org <https://meta.trac.wordpress.org/>
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