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@timmywil timmywil released this 18 Jan 00:27
· 9 commits to main since this release
Immutable release. Only release title and notes can be modified.
4.0.0
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timmywil Timmy Willison
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Learn about vigilant mode.
4f2fae0
This commit was signed with the committer’s verified signature.
timmywil Timmy Willison
GPG key ID: 5504C1CD93C19EAB
Verified
Learn about vigilant mode.

Changelog

https://blog.jquery.com/2026/01/17/jquery-4-0-0/

Ajax

  • Don't treat array data as binary (992a1911)
  • Allow processData: true even for binary data (ce264e07)
  • Support binary data (including FormData) (a7ed9a7b)
  • Support headers for script transport even when cross-domain (#5142, 6d136443)
  • Support null as success functions in jQuery.get (#4989, 74978b7e)
  • Don't auto-execute scripts unless dataType provided (#4822, 025da4dd)
  • Make responseJSON work for erroneous same-domain JSONP requests (68b4ec59)
  • Execute JSONP error script responses (#4771, a1e619b0)
  • Avoid CSP errors in the script transport for async requests (#3969, 07a8e4a1)
  • Drop the json to jsonp auto-promotion logic (#1799, #3376, e7b3bc48)
  • Overwrite s.contentType with content-type header value, if any (#4119, 7fb90a6b)
  • Deprecate AJAX event aliases, inline event/alias into deprecated (23d53928)
  • Do not execute scripts for unsuccessful HTTP responses (#4250, 50871a5a)
  • Simplify jQuery.ajaxSettings.xhr (#1967, abdc89ac)

Attributes

  • Make .attr( name, false ) remove for all non-ARIA attrs (#5388, 063831b6)
  • Shave off a couple of bytes (b40a4807)
  • Don't stringify attributes in the setter (#4948, 4250b628)
  • Drop the toggleClass(boolean|undefined) signature (#3388, a4421101)
  • Refactor val(): don't strip carriage return, isolate IE workarounds (ff281991)
  • Don't set the type attr hook at all outside of IE (9e66fe9a)

CSS

  • Fix dimensions of table <col> elements (#5628, eca2a564)
  • Drop the cache in finalPropName (640d5825)
  • Tests: Fix tests & support tests under CSS Zoom (#5489, 071f6dba)
  • Fix reliableTrDimensions support test for initially hidden iframes (b1e66a5f)
  • Selector: Align with 3.x, remove the outer selector.js wrapper (53cf7244)
  • Make the reliableTrDimensions support test work with Bootstrap CSS (#5270, 65b85031)
  • Make offsetHeight( true ), etc. include negative margins (#3982, bce13b72)
  • Return undefined for whitespace-only CSS variable values (#5120) (7eb00196)
  • Don’t trim whitespace of undefined custom property (#5105, ed306c02)
  • Skip falsy values in addClass( array ), compress code (#4998, a338b407)
  • Justify use of rtrim on CSS property values (655c0ed5)
  • Trim whitespace surrounding CSS Custom Properties values (#4926, efadfe99)
  • Include show, hide & toggle methods in the jQuery slim build (297d18dd)
  • Remove the opacity CSS hook (865469f5)
  • Workaround buggy getComputedStyle on table rows in IE/Edge (#4490, 26415e08)
  • Don't automatically add "px" to properties with a few exceptions (#2795, 00a9c2e5)

Core

  • Remove obsolete workarounds, update support comments (e2fe97b7)
  • Switch $.parseHTML from document.implementation to DOMParser (0e123509)
  • Fix the exports setup to make bundlers work with ESM & CommonJS (#5416, 60f11b58)
  • Add more info about named exports (5f869590)
  • Simplify code post browser support reduction (93ca49e6)
  • Move the factory to separate exports (46f6e3da)
  • Use named exports in src/ (#5262, f75daab0)
  • Fix regression in jQuery.text() on HTMLDocument objects (#5264, a75d6b52)
  • Selector: Move jQuery.contains from the selector to the core module (024d8719)
  • Drop the root parameter of jQuery.fn.init (d2436df3)
  • Don't rely on splice being present on input (9c6f64c7)
  • Manipulation: Add basic TrustedHTML support (#4409, de5398a6)
  • Report browser errors in parseXML (#4784, 89697325)
  • Make jQuery.isXMLDoc accept falsy input (#4782, fd421097)
  • Drop support for Edge Legacy (i.e. non-Chromium Microsoft Edge) (#4568, e35fb62d)
  • Fire iframe script in its context, add doc param in globalEval (#4518, 4592595b)
  • Exclude callbacks & deferred modules in the slim build as well (fbc44f52)
  • Migrate from AMD to ES modules 🎉 (d0ce00cd)
  • Use Array.prototype.flat where supported (#4320, 9df4f1de)
  • Remove private copies of push, sort & splice from the jQuery prototype (b59107f5)
  • Implement .even() & .odd() to replace POS :even & :odd (78420d42)
  • Deprecate jQuery.trim (#4363, 5ea59460)
  • Remove IE-specific support tests, rely on document.documentMode (#4386, 3527a384)
  • Drop support for IE <11, iOS <11, Firefox <65, Android Browser & PhantomJS (#3950, #4299, cf84696f)
  • Remove deprecated jQuery APIs (#4056, 58f0c00b)

Data

  • Refactor to reduce size (805cdb43)
  • Event:Manipulation: Prevent collisions with Object.prototype (#3256, 9d76c0b1)
  • Separate data & css/effects camelCase implementations (#3355, 8fae2120)

Deferred

Deprecated

  • Define .hover() using non-deprecated methods (fd6ffc5e)
  • Remove jQuery.trim (0b676ae1)
  • Fix AMD parameter order (f810080e)

Dimensions

  • Add offset prop fallback to FF for unreliable TR dimensions (#4529, 3bbbc111)

Docs

  • Fix some minor issues in comments (e4d4dd81)
  • update herodevs link in README (#5695, 093e63f9)
  • Align CONTRIBUTING.md with 3.x-stable (d9281061)
  • Update CONTRIBUTING.md (4ef25b0d)
  • add version support section to README (cbc2bc1f)
  • Update remaining HTTP URLs to HTTPS (7cdd8374)
  • Fix module links in the package README (ace646f6)
  • update watch task in CONTRIBUTING.md (77d6ad71)
  • Fix typos found by codespell (620870a1)
  • remove stale gitter badge from readme (67cb1af7)
  • Remove the "Grunt build" section from the PR template (988a5684)
  • Remove stale badge from README (bcd9c2bc)
  • Update the README of the published package (edccabf1)
  • Remove git.io from a GitHub Actions comment (016872ff)
  • Update webpack website in README (01819bc3)
  • add link to patchwelcome and help wanted issues (924b7ce8)
  • add link to preview the new CLAs (683ceb8f)
  • Fix incorrect trac-NUMBER references (eb9ceb2f)
  • remove expired links from old jquery source (#4997) (ed066ac7)
  • Remove links to Web Archive from source (#4981, e24f2dcf)
  • Replace #NUMBER Trac issue references with trac-NUMBER (5d5ea015)
  • Update the URL to the latest jQuery build in CONTRIBUTING.md (9bdb16cd)
  • Remove the CLA checkbox in the pull request template (e1248931)
  • update irc to Libera and fix LAMP dead link (175db73e)
  • Update Frequently Reported Issues in the GitHub issue template (7a6fae6a)
  • Change JS Foundation mentions to OpenJS Foundation (11611967)
  • add SECURITY.md, show security email address (2ffe54ca)
  • Fix typos (1a7332ce)
  • Update the link to the jsdom repository (a62309e0)
  • Use https for hyperlinks in README (73415da2)
  • Remove a mention of the event/alias.js module from README (3edfa1bc)
  • Update links to EdgeHTML issues to go through Web Archive (1dad1185)
  • direct users to GitHub docs for cloning the repo (f1c16de2)
  • Change OS X to macOS in README (5a3e0664)
  • Update most URLs to HTTPS (f09d9210)
  • Convert link to Homebrew from HTTP to HTTPS (e0022f23)

Effect

  • Fix a unnecessary conditional statement in .stop() (#4374, 110802c7)

Effects

Event

  • Use .preventDefault() in beforeunload (7c123dec)
  • Increase robustness of an inner native event in leverageNative (#5459, 527fb3dc)
  • Avoid collisions between jQuery.event.special & Object.prototype (bcaeb000)
  • Simplify the check for saved data in leverageNative (dfe212d5)
  • Make trigger(focus/blur/click) work with native handlers (#5015, 6ad3651d)
  • Simulate focus/blur in IE via focusin/focusout (#4856, #4859, #4950, ce60d318)
  • Don't break focus triggering after .on(focus).off(focus) (#4867, e539bac7)
  • Make focus re-triggering not focus the original element back (#4382, dbcffb39)
  • Don't crash if an element is removed on blur (#4417, 5c2d0870)
  • Remove the event.which shim (#3235, 1a5fff4c)
  • remove jQuery.event.global (18db8717)
  • Only attach events to objects that accept data - for real (#4397, d5c505e3)
  • Stop shimming focusin & focusout events (#4300, 8a741376)
  • Prevent leverageNative from registering duplicate dummy handlers (eb6c0a7c)
  • Fix handling of multiple async focus events (#4350, ddfa8376)

Manipulation

  • Make jQuery.cleanData not skip elements during cleanup (#5214, 3cad5c43)
  • Generalize a test to support IE (88690ebf)
  • Support $el.html(selfRemovingScript) (#5378) (#5377, 937923d9)
  • Extract domManip to a separate file (ee6e8740)
  • Don't remove HTML comments from scripts (#4904, 2f8f39e4)
  • Respect script crossorigin attribute in DOM manipulation (#4542, 15ae3614)
  • Avoid concatenating strings in buildFragment (9c98e4e8)
  • Make jQuery.htmlPrefilter an identity function (90fed4b4)
  • Selector: Use the nodeName util where possible to save size (4504fc3d)

Offset

  • Increase search depth when finding the 'real' offset parent (556eaf4a)

Release

  • 4.0.0 (4f2fae08)
  • remove dist files from main branch (c838cfb5)
  • 4.0.0-rc.2 (97525193)
  • Update AUTHORS.txt (c128d5d8)
  • Fix release issues uncovered during the 4.0.0-rc.1 release (a5b0c431)
  • remove dist files from main branch (9d06c6dd)
  • 4.0.0-rc.1 (586182f3)
  • Run npm publish in the post-release phase (ff1f0eaa)
  • Only run browserless tests during the release (fb5ab0f5)
  • Temporarily disable running tests on release (3f79644b)
  • publish tmp/release/dist folder when releasing (#5658, a865212d)
  • correct build date in verification; other improvements (53ad94f3)
  • remove dist files from main branch (be048a02)
  • 4.0.0-beta.2 (51fffe9f)
  • ensure builds have the proper version (3e612aee)
  • set preReleaseBase in config file (1fa8df5d)
  • fix running pre/post release scripts in windows (5518b2da)
  • update AUTHORS.txt (862e7a18)
  • migrate release process to release-it (jquery/jquery-release#114, 2646a8b0)
  • add factory files to release distribution (#5411, 1a324b07)
  • use buildDefaultFiles directly and pass version (b507c864)
  • copy dist-module folder as well (63767650)
  • only published versioned files to cdn (3a0ca684)
  • remove scripts and dev deps from dist package.json (7eac932d)
  • update build command in Release.generateArtifacts (3b963a21)
  • add support for md5 sums in windows (f088c366)
  • remove the need to install grunt globally (b2bbaa36)
  • upgrade release dependencies (967af732)
  • Remove an unused chalk dependency (bfb6897c)
  • Use an in-repository dist README fixture (358b769a)
  • Update AUTHORS.txt (1b74660f)
  • update AUTHORS.txt (cf9fe0f6)

Selector

  • Remove the workaround for :has; test both on iPhone & iPad (65e35450)
  • Properly deprecate jQuery.expr[ ":" ]/jQuery.expr.filters (329661fd)
  • Make selector.js module depend on attributes/attr.js (#5379, e06ff088)
  • Eliminate selector.js depenencies from various modules (e8b7db4b)
  • Re-expose jQuery.find.{tokenize,select,compile,setDocument} (#5259, 338de359)
  • Stop relying on CSS.supports( "selector(...)" ) (#5194, 68aa2ef7)
  • Backport jQuery selection context logic to selector-native (#5185, 2e644e84)
  • Make selector lists work with qSA again (#5177, 09d988b7)
  • Implement the uniqueSort chainable method (#5166, 5266f23c)
  • Re-introduce selector-native.js (4c1171f2)
  • Manipulation: Fix DOM manip within template contents (#5147, 3299236c)
  • Drop support for legacy pseudos, test custom pseudos (8c7da22c)
  • Use jQuery :has if CSS.supports(selector(...)) non-compliant (#5098, d153c375)
  • Remove the "a:enabled" workaround for Chrome <=77 (c1ee33ad)
  • Make empty attribute selectors work in IE again (#4435, 05184cc4)
  • Use shallow document comparisons in uniqueSort (#4441, 15750b0a)
  • Add a test for throwing on post-comma invalid selectors (6eee5f7f)
  • Make selectors with leading combinators use qSA again (ed66d5a2)
  • Use shallow document comparisons to avoid IE/Edge crashes (#4441, aa6344ba)
  • reduce size, simplify setDocument (29a9544a)
  • Leverage the :scope pseudo-class where possible (#4453, df6a7f7f)
  • Bring back querySelectorAll shortcut usage (cef4b731)
  • Inline Sizzle into the selector module (47835965)
  • Port Sizzle tests to jQuery (79b74e04)

Support

  • ensure display is set to block for the support div (#4832, 09f25436)

Tests

  • Fix the "outside view position" test in Headless Chrome (23d72cb1)
  • Fix selector tests in Chrome 141 (25a1b080)
  • Increase nomodule test timeout for IE from 1s to 5s (5eab0a3c)
  • Fix module/nomodule tests flakiness (5964acf3)
  • Use releases.jquery.com as external host for AJAX testing (f21a6ea6)
  • Fix tests for jQuery.get( String, null-ish, null-ish, String ) (05325801)
  • Add tests for jQuery.get( String, null-ish, null-ish, String ) (76687566)
  • Backport the hidden="until-found" attr tests from 3.x-stable (3a31866b)
  • migrate test runner to jquery-test-runner (733e62d2)
  • Add custom attribute getter tests to the selector module (44667709)
  • Switch to an updated fork of promises-aplus-tests (559bc5ac)
  • Run tests in Edge in IE mode in GitHub Actions (6d78c076)
  • Run tests on both real Firefox ESRs (4b7ecbad)
  • align mock.php spacing with 3.x-stable branch (d5ae14f6)
  • replace dead links in qunit fixture (dbc9dac7)
  • replace express with basic Node server (c85454a8)
  • remove unnecessary scroll feature test (ea31e4d5)
  • Align :has selector tests with 3.x-stable (f2d9fde5)
  • revert concurrency group change (fa73e2f1)
  • include github ref in concurrency group (5880e027)
  • Make the beforeunload event tests work regardless of extensions (399a78ee)
  • share queue/browser handling for all worker types (284b082e)
  • improve diffing for values of different types (b9d333ac)
  • show any and all actual/expected values (f80e78ef)
  • add diffing to test reporter (44fb7fa2)
  • add actual and expected messages to test reporter (1e84908b)
  • fix worker restarts for failed browser acknowledgements (fedffe74)
  • add --hard-retries option to test runner (822362e6)
  • fix cleanup in cases where server doesn't stop (0754d596)
  • fix flakey message logs; ignore delete worker failures (02d23478)
  • reuse browser workers in BrowserStack tests (#5428) (95a4c94b)
  • Use allowlist instead of whitelist (2b97b6bb)
  • migrate testing infrastructure to minimal dependencies (dfc693ea)
  • Fix Karma tests on Node.js 20 (d478a1c0)
  • Disable the ":lang respects escaped backslashes" test (#5271, 62b9a258)
  • Indicate Chrome 112 & Safari 16.4 pass the cssHas support test (89ef81f8)
  • Test AJAX deprecated event aliases properly (cff28998)
  • Indicate Firefox 106+ passes the cssSupportsSelector test (716130e0)
  • Remove a workaround for a Firefox XML parsing issue (e7ffe1f1)
  • Fix the link to QUnit CSS file (8cf39b78)
  • Exclude tests based on compilation flags, not API presence (#5069, fae5fee8)
  • Workaround an XML parsing bug in Firefox (af1cd6f2)
  • lock colors version to 1.4.0 (9603b3c8)
  • Skip ETag AJAX tests on TestSwarm (00c060d1)
  • Allow statusText to be "success" in AJAX tests (19ced963)
  • Make Karma browser timeout larger than the QUnit one (4fd6912b)
  • Don't remove csp.log in the cspClean action of mock.php (1019074f)
  • Load the TestSwarm listener via HTTPS (d225639a)
  • Switch background image from online file to local 1x1.jpg (482f8462)
  • Strip untypical callback parameter characters from mock.php (a7027463)
  • Make more tests run natively in Chrome & Firefox (50e8e846)
  • Fix tests for not auto-executing scripts without dataType (d38528b1)
  • Recognize callbacks with dots in the Node.js mock server (df6858df)
  • Skip the "jQuery.ajax() on unload" test in Safari (c18dc496)
  • Remove an unused local variable (82b87f6f)
  • Remove remaining obsolete jQuery.cache references (d96111e1)
  • Workaround failures in recent XSS tests in iOS 8 - 12 (11066a9e)
  • Add tests for recently fixed manipulation XSS issues (dc06d68b)
  • Use only one focusin/out handler per matching window & document (9b732043)
  • Fix flakiness in the "jQuery.ajax() - JSONP - Same Domain" test (7b0864d0)
  • Pass a number of necessary done() calls to assert.async() (364476c3)
  • Remove obsolete jQuery data tests (eb35be52)
  • Skip a "width/height on a table row with phantom borders" test in Firefox (a612733b)
  • Don't test synchronous XHR on unload in Chrome (323575fb)
  • Stop using jQuery.find in tests (1d624c10)
  • Port changes from Sizzle (ac5f7cd8)
  • Fix a comment in testinit.js (7bdf307b)
  • update npo.js and include unminified source instead (b334ce77)
  • Restrict an event test fallback to TestSwarm (bde53edc)
  • Fix the new focusin/focusout test in IE (6f2fae7c)
  • Fix the core-js polyfill inclusion method (2e4b79ab)

Traversing

  • Fix contents() on <object>s with children in IE (ccbd6b93)
  • Fix contents() on <object>s with children (#4384, 4d865d96)

Upgrade

  • Bump actions/setup-node from 3.3.0 to 3.4.1 (78321f07)
  • set up periodic code scanning analysis (39c5778c)
  • updated the vulnerability reporting process and added escalation steps (02cf4ee0)
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