Closes gh-4642

Travis reports warnings in our config:
* root: deprecated key sudo (The key `sudo` has no effec...

Make sure events & data keys matching Object.prototype properties work.
A separate fix for such...

Use a dist README fixture kept in the jQuery repository instead of modifying
an existing one. T...

Node.js code is written more & more commonly in ES6+ so it doesn't make sense
to enable it ther...

It is no longer needed to create `done` wrappers in tests that require
multiple async operation...

Closes gh-4613

1. Support passing custom document to jQuery.globalEval; the script will be
invoked in the c...

jQuery.event.global has been write-only in the jQuery source for the past few
years; reading fr...

The file contents now lie in deprecated/event.js so the README reference
is no longer correct.
...

While we have absolutely no style-related expectations to our minified file,
we do care that it...

A new `src/deprecated` directory makes it possible to exclude some deprecated
APIs from a custo...

The consequence is `.css( "opacity" )` will now return an empty string for
detached elements in...

While we have absolutely no style-related expectations to our minified file,
we do care that it...

Otherwise it's hard to see at a glance that a particular job is running
on Firefox ESR, for exa...

So far, the slim build only excluded ajax & effects modules. As many web apps
right now rely on...

Before this change, `val()` was stripping out carriage return characters from
the returned valu...

The tests relied on `jQuery.cache` so they only ever worked in jQuery 1.x.

Closes gh-4586

This removes a needless function call in modern browsers.

Closes gh-4587

PR gh-4550 added support for running ES modules & AMD tests via Karma. This
required reading th...

This commit fixes unit tests for the following builds:

1. The no-deprecated build: `custom:-d...

With Microsoft going Chromium with Edge, its old EdgeHTML issues were all
removed. :(

Closes...

Closes gh-4578

Remove the workaround for a broken `:enabled` pseudo-class on anchor elements
in Chrome <=77. T...

Ref gh-4556
Close gh-4571

Also, run such a suite in CI to make sure modules are working as expected
when used directly.
...

jQuery source has been migrated in gh-4541 from AMD to ES modules. To maintain
support for cons...

There was a check in jQuery.event.add that was supposed to make it a noop
for objects that don'...

macOS has been around for long enough to update the naming here.

Closes gh-4552

This commit gets rid of rollup-plugin-hypothetical in favor of a simpler
inline Rollup plugin t...

jQuery source is now authored in ECMAScript modules. Native browser support
for them requires f...

qSA in IE 11/Edge often (but not always) don't find elements with an empty
name attribute selec...

Migrate all source AMD modules to ECMAScript modules. The final bundle
is compiled by a custom ...

Firefox 70 & newer fail this test but the issue there is more profound - Firefox
doesn't subtra...

Chrome 78 dropped support for synchronous XHR requests inside of
beforeunload, unload, pagehide...

The environmental variable BROWSERS was being created but it wasn't read in the
list of browser...

Closes gh-4530

(cherry picked from commit 0a73b94a21d4c30b5598b95923dc73d640e07b99)

Closes gh-4528

Also, run them on both ChromeHeadless & FirefoxHeadless locally on
`grunt karma:main`.

Plus,...

IE/Edge sometimes crash when comparing documents between frames using the strict
equality opera...

Closes gh-4511

Sizzle's PR jquery/sizzle#456 introduced a test catching not throwing on
badly-escaped identifi...

This prepares us for possibly hiding jQuery.find in jQuery 4.0.

Closes gh-4517

Fixes gh-4490
Closes gh-4506

An optimization added in jquery/sizzle#431 skips the temporary IDs for selectors
not using chil...

So far, only browser-based JS files were required to be in strict mode (in the
function form). ...

Saves 20 bytes.

Closes gh-4504

`http://brew.sh/` -> `https://brew.sh/`

Closes gh-4501

Without this change passing `--dry-run` to jquery-release still pushes to the
jquery-dist repos...

File `src/core.js` has started erroneously being copied to `dist/` in gh-2981.

Fixes gh-4489
...

After recent merging of Sizzle & jQuery AUTHORS.txt, the `grunt authors` task
doesn't provide me...

The script transport used to evaluate fetched script sources which is
undesirable for unsuccessf...

Calling `Array.prototype.concat.apply( [], inputArray )` to flatten `inputArray`
crashes for lar...

IE/Edge sometimes crash when comparing documents between frames using the strict
equality opera...

Closes gh-4473

`:even` & `:odd` are deprecated since jQuery 3.4.0 & will be removed in 4.0.0.
The new `even()`...

Ref gh-4461

With new selector code doing less convoluted support tests, it was possible
to extract a lot of...

Previously, jQuery.ajaxSettings.xhr, contents were wrapped in a try-catch
as we defined jQuery....

Now that Sizzle is gone & we use npm, we can read from node_modules directly
and skip the setup...

Fixes gh-4363
Closes gh-4461

Ref https://github.com/jquery/sizzle/pull/450
Closes gh-4464

The `:scope` pseudo-class[1] has surprisingly good browser support: Chrome,
Firefox & Safari ha...

A copied comment line was accidentally left out above the line defining
`QUnit.jQuerySelectorsP...

Close gh-4446
Ref gh-4445

Due to a faulty IE 8 workaround removal, the fast path qSA mode was skipped
when jQuery's find ...

This commit removes Sizzle from jQuery, inlining its code & removing obsolete
workarounds where ...

Apart from porting most Sizzle tests to jQuery (mostly to its selector module),
this commit fix...

This commit requires all function parameters to be used, not just the last one.
In cases where ...

The previous regex caused the final jQuery binary to have syntax errors for
var-modules with na...

Also, update some tests to IE-sniff when deciding whether
to skip a test.

Fixes gh-4386
Clo...

The original fix didn't account for the fact that in IE `<object>` elements
with no `data` attr...

Fixes gh-4384
Closes gh-4385

Because of the above conditional, the 'type' variable has a value of type
'string' or undefined...

A leftover `rboxStyle` was left in the wrapper parameters but not in the
dependency array, caus...

Also, update support comments format to match format described in:
https://github.com/jquery/co...

Closes gh-4357

Fixes gh-4056
Closes gh-4364

In IE, focus & blur events fire asynchronously, the test now accounts for that.

Ref gh-4362

Latest versions of all browsers now implement focusin & focusout natively
and they all converge...

The camelCase implementation used by the data module no longer turns `-ms-foo`
into `msFoo` but...

(cherry-picked from 6c1e7dbf7311ae7c0c31ba335fe216185047ae5f)

Closes gh-4353

(cherry-picked from 24d71ac70406f522fc1b09bf7c4025251ec3aee6)

Fixes gh-4350
Closes gh-4354

Closes gh-4369

Also, prevent further similar breakages by changing our ESLint configuration
to disallow relyin...

Fixes gh-1756
Fixes gh-4170
Fixes gh-4249
Closes gh-4345

Fixes gh-2795
Closes gh-4055
Ref gh-4009

core-js 3 no longer includes a built file in the bundle but core-js-bundle
does.

Closes gh-4...

Closes gh-4341

Android Browser disregards td's box-sizing, treating it like it was content-box.
Unlike in IE, ...

Android Browser versions provided by BrowserStack fail the "prototype collision
(constructor)" ...

Fixes gh-4323
Closes gh-4328

Also, reduce size.

Closes gh-4329
Ref gh-4279

Closes gh-4333

Summary of the changes/fixes:
1. Trigger checkbox and radio click events identically (cherry-pic...

Fixes gh-4322
Closes gh-4325
Ref gh-3991
Ref gh-4010
Ref gh-4185
Ref gh-4187