jQuery 3.0 最终版发布

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                　　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 发布了全新的3.0升级指南，以及 jQuery Migrate 3.0 插件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：
　　

• https://code.jquery.com/jquery-3.0.0.js
  
• https://code.jquery.com/jquery-3.0.0.min.js
  

　　您也可以从以下npm获得更新：
npm install jquery@3.0.0　　
　　此外，jQuery Migrate 3.0 也更新了。地址：

• https://code.jquery.com/jquery-migrate-3.0.0.js
  
• https://code.jquery.com/jquery-migrate-3.0.0.min.js
  

npm install jquery-migrate@3.0.0　　更新日志：
　　
Ajax

• 　　Golf away 21 bytes (eaa3e9f)
  
• 　　Preserve URL hash on requests (#1732, e077ffb)
  
• 　　Execute jQuery#load callback with correct context (#3035, 5d20a3c)
  
• 　　Ensure ajaxSettings.traditional is still honored (#3023, df2051c)
  
• 　　Remove unnecessary use of jQuery.trim (0bd98b1)
  

Attributes

• 　　Avoid infinite recursion on non-lowercase attribute getters (#3133, e06fda6)
  
• 　　Add a support comment & fix a link @ tabIndex hook (9cb89bf)
  
• 　　Strip/collapse whitespace for set values on selects (#2978, 7052698)
  
• 　　Remove redundant parent check (b43a368)
  
• 
  　　Fix setting selected on an option in IE
  
• 　　Fix an incorrect comment in the attributes module (5430c54)
  
• 　　Updated links to https where they are supported. (b0b280c)
  
• 　　Update support comments to follow the new syntax (6072d15)
  
• 　　Use https where possible (1de8346)
  
• 　　Use HTTPS URLs for jsfiddle & jsbin (63a303f)
  
• 　　Add FAQ to reduce noise in issues (dbdc4b7)
  
• 　　Add a note about loading source with AMD (#2714, e0c25ab)
  
• 　　Add note about code organization with AMD (#2750, dbc4608)
  
• 　　Reference new feature guidelines and API tenets (#2320, 6054139)
  

Effects

• 
  　　Remove>
  
• 　　Add tests for using jQuery.speed directly (#2716, cb80b42)
  

Event

• 　　Allow constructing a jQuery.Event without a target (#3139, 2df590e)
  
• 　　Add touch event properties, eliminates need for a plugin (#3104, f595808)
  
• 　　Add the most commonly used pointer event properties (7d21f02)
  
• 　　Remove fixHooks, propHooks; switch to ES5 getter with addProp (#3103, #1746, e61fccb)
  
• 　　Make event dispatch optimizable by JavaScript engines (9f268ca)
  
• 　　Evaluate delegate selectors at add time (#3071, 7fd36ea)
  
• 　　Cover invalid delegation selector edge cases (e8825a5)
  
• 　　Fix chaining .on() with null handlers (#2846, 17f0e26)
  
• 　　Remove pageX/pageY fill for event object (#3092, 931f45f)
  

Events

• 　　Don’t execute native stop(Immediate)Propagation from simulation (#3111, 94efb79)
  

Manipulation

• 　　Bring tagname regexes up to spec (#2005, fb9472c)
  

Offset

• 　　Resolve strict mode ClientRect “no setter” exception (3befe59)
  

Selector

• 　　filters -> pseudos (#2073, 0402963)
  
• 　　Update Sizzle to 2.3.0 (5c4be05)
  
• 　　Add jQuery.escapeSelector (#1761, 25068bf)
  

Serialize

• 　　Treat literal and function-returned null/undefined the same (#3005, 9fdbdd3)
  
• 
  　　Reduce>
  

Support

• 　　Improve support properties computation (#3018, 44cb97e)
  

Tests

• 　　Take Safari 9.1 into account (234a2d8)
  
• 　　Limit selection to #qunit-fixture in attributes.js (ddb2c06)
  
• 　　Set Edge’s expected support for clearClone  to true (28f0329)
  
• 　　Fix Deferred tests in Android 5.0’s stock Chrome browser & Yandex.Browser (5c01cb1)
  
• 　　Add additional test for jQuery.isPlainObject (728ea2f)
  
• 　　Build: update QUnit and fix incorrect test (b97c8d3)
  
• 　　Fix manipulation tests in Android 4.4 (0b0d4c6)
  
• 　　Remove side-effects of one attributes test (f9ea869)
  
• 　　Account for new offset tests (f52fa81)
  
• 　　Make iframe tests wait after checking isReady (08d73d7)
  
• 　　Refactor testIframe() to make it DRYer and more consistent (e5ffcb0)
  
• 　　Weaken sync-assumption from jQuery.when to jQuery.ready.then (f496182)
  
• 　　Test element position outside view (#2909, a2f63ff)
  
• 　　Make the regex catching Safari 9.0/9.1 more resilient (7f2ebd2)
  

Traversing

• 　　.not/.filter consistency with non-elements (#2808, 0e2f8f9)
  
• 　　Never let .closest() match positional selectors (#2796, a268f52)
  
• 　　Restore jQuery push behavior in .find (#2370, 4d3050b)
  

　　详情：jQuery 3.0 Final>