[wp-trac] [WordPress Trac] #58083: Run tests with jQuery 3.x-git in preparation for jQuery 3.7.0

[WordPress Trac]

#58083: Run tests with jQuery 3.x-git in preparation for jQuery 3.7.0
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 Reporter:  mgol            |      Owner:  (none)
     Type:  enhancement     |     Status:  new
 Priority:  normal          |  Milestone:  Awaiting Review
Component:  General         |    Version:
 Severity:  normal          |   Keywords:
  Focuses:  ui, javascript  |
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 Hey! The jQuery team is preparing for a release of jQuery 3.7.0. While
 formally not a breaking update, there are major changes in that version
 that incur some risk. Before we release, I'm trying to verify the changes
 are not breaking important projects.

 What we'll release as 3.7.0 should be very similar to what you can
 currently find at https://releases.jquery.com/git/jquery-3.x-git.js.

 Do you have some tests you could invoke on that pre-release version?

 Summary of the most risky changes:
 * removal of Sizzle in favor of inlining the selector engine code within
 jQuery with a lot of removals of workarounds for legacy browsers - we have
 tests but there's always risk we removed too much
 * implementing the focus jQuery event in IE via focusin and blur via
 focusout - this is because focusin & focusout native handlers are executed
 synchronously in IE while focus & blur are async; in other browsers, all 4
 are sync

 I guess the second part doesn't affect you since you don't support IE
 anymore?

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Ticket URL: <https://core.trac.wordpress.org/ticket/58083>
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