[wp-trac] [WordPress Trac] #53432: Fatal error during update to 5.8 of a site with an active Gutenberg plugin (version less than 10.8.4)

[WordPress Trac]

#53432: Fatal error during update to 5.8 of a site with an active Gutenberg plugin
(version less than 10.8.4)
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 Reporter:  oglekler         |      Owner:  (none)
     Type:  defect (bug)     |     Status:  new
 Priority:  normal           |  Milestone:  Awaiting Review
Component:  Upgrade/Install  |    Version:  trunk
 Severity:  normal           |   Keywords:
  Focuses:                   |
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 Versions of Gutenberg less than 10.7.4 have WP_Block_Template which is now
 in Core in WordPress 5.8 and without a checkup that this block is already
 active on a site (or some other compatibility precautions), it crushes
 with Fatal Error.

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Ticket URL: <https://core.trac.wordpress.org/ticket/53432>
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