jQuery 3.0 最终版发布了。jQuery 3.0将是jQuery的未来。但如果你需要IE6-8支持，您可以继续使用最新版本1.12。

为了帮助用户升级，jQuery 发布了，以及将帮助您识别代码中的兼容性问题。

您可以从jQuery CDN获取文件，或者直接访问链接：

您也可以从以下npm获得更新：

此外，jQuery Migrate 3.0 也更新了。地址：

更新日志：

Golf away 21 bytes ()

• Preserve URL hash on requests (,)

• Execute jQuery#load callback with correct context (,)

• Ensure ajaxSettings.traditional is still honored (,)

• Remove unnecessary use of jQuery.trim ()

Avoid infinite recursion on non-lowercase attribute getters (,)

• Add a support comment & fix a link @ tabIndex hook ()

• Strip/collapse whitespace for set values on selects (,)

• Remove redundant parent check ()

• Fix setting selected on an option in IE<=11 (,)

Don't workaround the IE 11 iframe-in-fullscreen sizing issues (,)

• Toggle detached elements as visible unless they have display: none (,)

• Make sure elem.ownerDocument.defaultView is not null (,)

• Add animation-iteration-count to cssNumber (,)

• Restore cascade-override behavior in .show (,,)

• Stop Firefox from treating disconnected elements as cascade-hidden (,)

Implement ready without Deferred (,,)

• Improve isNumeric logic and test coverage (,)

• Set the base href of the context in parseHTML (,)

• Simplify isPlainObject (,)

• Add test for `jQuery.isPlainObject(localStorage)` ()

• Do not expose second argument of the `jQuery.globalEval` ()

• Deprecate jQuery.parseJSON (,)

Separate the two paths in jQuery.when (,)

• Provide explicit undefined context for jQuery.when raw casts (,)

• Remove default callback context (,)

• Warn on exceptions that are likely programming errors (,)

• Propagate progress correctly from unwrapped promises (,)

• Make jQuery.when synchronous when possible (,)

• Remove undocumented progress notifications in $.when (,)

• Give better stack diagnostics on exceptions ()

Add tests for negative borders & paddings ()

Fix varIoUs spelling errors ()

• Update support comments related to IE ()

• Fix an incorrect comment in the attributes module (@L_404_33@)

• Update support comments to follow the new Syntax ()

• Use https where possible ()

• Use HTTPS URLs for jsfiddle & jsbin ()

• Add FAQ to reduce noise in issues ()

• Add a note about loading source with AMD (,)

• Add note about code organization with AMD (,)

• Reference new feature guidelines and API tenets (,)

Remove width/height exception for oldIE (,)

• Add tests for using jQuery.speed directly (,)

Allow constructing a jQuery.Event without a target (,)

• Add touch event properties,eliminates need for a plugin (,)

• Add the most commonly used pointer event properties ()

• Remove fixHooks,propHooks; switch to ES5 getter with addProp (,,)

• Make event dispatch optimizable by JavaScript engines ()

• Evaluate delegate selectors at add time (,)

• Cover invalid delegation selector edge cases ()

• Fix chaining .on() with null handlers (,)

• Remove pageX/pageY fill for event object (,)

Don't execute native stop(Immediate)Propagation from simulation (,)

Bring tagname regexes up to spec (,)

Resolve strict mode ClientRect “no setter” exception ()

filters -> pseudos (,)

• Update Sizzle to 2.3.0 ()

• Add jQuery.escapeSelector (,)

Treat literal and function-returned null/undefined the same (,)

• Reduce size ()

Improve support properties computation (,)

Take Safari 9.1 into account ()

• Limit selection to #qunit-fixture in attributes.js ()

• Set Edge's expected support for clearClone to true ()

• Fix Deferred tests in Android 5.0's stock Chrome browser & Yandex.Browser ()

• Add additional test for jQuery.isPlainObject ()

• Build: update QUnit and fix incorrect test ()

• Fix manipulation tests in Android 4.4 ()

• Remove side-effects of one attributes test ()

• Account for new offset tests ()

• Make iframe tests wait after checking isReady ()

• Refactor testIframe() to make it DRYer and more consistent ()

• Weaken sync-assumption from jQuery.when to jQuery.ready.then ()

• Test element position outside view (,)

• Make the regex catching Safari 9.0/9.1 more resilient ()

.not/.filter consistency with non-elements (,)

• Never let .closest() match positional selectors (,)

• Restore jQuery push behavior in .find (,)

详情：

原文链接：https://www.f2er.com/jquery/47979.html