[wp-trac] [WordPress Trac] #54546: Fatal error receive while updating WP 5.8.2 to WP 5.9.

[WordPress Trac]

#54546: Fatal error receive while updating WP 5.8.2 to WP 5.9.
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 Reporter:  apeksha10          |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  5.9
Component:  Upgrade/Install    |     Version:  trunk
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
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Comment (by hellofromTonya):

 Replying to [comment:12 SergeyBiryukov]:
 > Hmm, unless I'm missing something, I don't think the Gutenberg plugin is
 relevant here, but rather the fact that the updater itself uses an older
 version of the Requests library during the core update process.

 Yes that is what is expected to happen. The point of the test was to
 validate that the "to" (i.e. 5.9.0) `wp-admin/includes/update-core.php`
 was loaded into memory and being executed. The fact that the older version
 of Gutenberg was deactivated proves that 5.9's version of `update-
 core.php` was the file being executed.

 Why did we do that check? Because the older versions of HTTP and Requests
 were the ones being executed in memory. We needed to figure out if the
 Updater was able older (i.e. the "from" version) or the new 5.9.0 version.

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Ticket URL: <https://core.trac.wordpress.org/ticket/54546#comment:15>
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