[wp-trac] [WordPress Trac] #63052: Extension check during upgrade does not work on WordPress prior to 5.1

[WordPress Trac]

#63052: Extension check during upgrade does not work on WordPress prior to 5.1
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 Reporter:  johnbillion      |      Owner:  johnbillion
     Type:  defect (bug)     |     Status:  assigned
 Priority:  normal           |  Milestone:  6.8
Component:  Upgrade/Install  |    Version:  trunk
 Severity:  major            |   Keywords:  needs-patch
  Focuses:                   |
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 As discovered by the upgrade checks for 6.8 beta 1, the check for missing
 required extensions during the upgrade process that were added in [59803]
 calls the `WP_Error::has_errors()` method which was introduced in
 WordPress 5.1. This means sites running WordPress prior to 5.1 will
 experience a fatal during the upgrade process.

 The site will remain online and functional, but it won't be possible to
 proceed with the upgrade.

 Example failing workflow: https://github.com/WordPress/wordpress-
 develop/actions/runs/13657290367/job/38180581900

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Ticket URL: <https://core.trac.wordpress.org/ticket/63052>
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