[wp-trac] [WordPress Trac] #60478: Upgrade to jQuery 4.0

[WordPress Trac]

#60478: Upgrade to jQuery 4.0
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 Reporter:  nickchomey               |       Owner:  (none)
     Type:  task (blessed)           |      Status:  new
 Priority:  normal                   |   Milestone:  7.0
Component:  External Libraries       |     Version:
 Severity:  normal                   |  Resolution:
 Keywords:  needs-patch needs-       |     Focuses:  javascript,
  testing                            |  performance
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Comment (by siliconforks):

 Replying to [comment:34 TobiasBg]:
 > I tentatively moved this to milestone 7.0. Given that we are still in
 the alpha phase, it might good to implement this soon, to get lots of
 testing.

 That seems really...optimistic.  jQuery 3.0 was released in 2016, but it
 was not until 2020 that WordPress finally updated to jQuery 3.x (see
 #50564).

 According to [https://core.trac.wordpress.org/ticket/51812#comment:139
 this comment], jQuery Migrate 3.6.0 "will prepare to a future migration to
 jQuery 4 much better by warning against many more breaking changes."  But
 WordPress is still using jQuery Migrate 3.4.1.  Wouldn't it be better to
 update to jQuery Migrate 3.6.0 first, before trying to update to jQuery 4?

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Ticket URL: <https://core.trac.wordpress.org/ticket/60478#comment:39>
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