[wp-trac] [WordPress Trac] #50564: Update jQuery step two

[WordPress Trac]

#50564: Update jQuery step two
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 Reporter:  azaozz              |       Owner:  (none)
     Type:  defect (bug)        |      Status:  new
 Priority:  normal              |   Milestone:  5.6
Component:  External Libraries  |     Version:
 Severity:  normal              |  Resolution:
 Keywords:  early needs-patch   |     Focuses:  javascript
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Comment (by mgol):

 One thing that may be important here - while we (the jQuery Core team)
 generally try to follow semver right now and only do breaking changes in
 major releases, we had to do a breaking change in 3.5 to resolve a
 security issue. Details on that change are included in the 3.5 upgrade
 guide: https://jquery.com/upgrade-guide/3.5/.

 Note that Migrate will not automatically restore previous behavior here as
 we prefer Migrate to not reintroduce security issues by default. If this
 upgrade is too much for you to do at once, you can call:
 {{{
 jQuery.UNSAFE_restoreLegacyHtmlPrefilter();
 }}}
 as indicated in the upgrade guide. This is a Migrate API so it's only
 available if you load a new enough Migrate version.

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Ticket URL: <https://core.trac.wordpress.org/ticket/50564#comment:2>
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