jQuery 1.9 and subsequent version updates: Outlook and Changes

This article outlines future update plans for jQuery versions 1.8, 1.9 and 2.0.

jQuery 2.0 aims to be “smaller and better performance” while “removing support for older IE (IE6,7,8)” and “enhanced device support”.

• jQuery 1.9 (early 2013): Many deprecated interfaces in version 1.8 will be removed; some interfaces will be provided in the form of alternative APIs supported by plugins or jQuery projects. IE 6/7/8 will continue to maintain existing support.
• jQuery 1.9.x (2013 and beyond): This version will continue to fix any regression issues, new browser errors, etc.
• jQuery 2.0 (early 2013, immediately after 1.9): This version will support the same API as jQuery 1.9, but removes the unique feature support for IE 6/7/8, such as the wrong event model, IE7's "attroperties", HTML5 shims, etc.

Our goal is to make 1.9 and 2.0 interchangeable in terms of the API sets they support. When 2.0 is released, it should be easy to choose which version you want: if you need IE 6/7/8 support, choose 1.9; otherwise, you can use 1.9 or 2.0. [Read full official article] [Read follow-up question and answer] [Read FAQs about jQuery Core Version 1.9]

What are the major changes in jQuery core version 1.9 compared with previous versions?

jQuery core version 1.9 has made some improvements based on its predecessor. The most notable change is the removal of several deprecated features that have brought confusion and complexity to developers. This version also introduces the jQuery Migrate plugin to help developers migrate from older versions of jQuery to version 1.9. In addition, this version improves the HTML string parsing mechanism to make it safer and more efficient.

How to download and install jQuery core version 1.9?

You can download jQuery core version 1.9 from the official jQuery website. After downloading, you can include it in the HTML file using script tags. You can also include jQuery in your project using CDN (Content Distribution Network). This method can improve website performance because jQuery files can be cached by the browser.

What is jQuery Migrate plugin and how to use it?

jQuery Migrate plugin is a tool that helps developers migrate from older versions of jQuery to new versions. It provides warnings about deprecated features removed in new versions. To use it, you need to include it in the HTML file after including jQuery. It automatically provides warnings about deprecated features in the browser's console.

What security improvements are there in jQuery core version 1.9?

jQuery Core Version 1.9 introduces several security improvements. The most notable is the improved HTML string parsing mechanism. This mechanism ensures that only valid HTML strings are parsed, preventing potential security risks such as cross-site scripting (XSS) attacks.

How to use jQuery core version 1.9 in my project?

To use jQuery core version 1.9 in your project, you need to include it in the HTML file using script tags. Once included, you can use the functionality of jQuery in your JavaScript code. Remember to include jQuery before any other script that uses it.

What are the browser compatibility issues in jQuery core version 1.9?

jQuery Core Version 1.9 supports all modern browsers. However, it has abandoned support for Internet Explorer 6/7/8. If you need to support these browsers, you should use an older version of jQuery or use polyfill.

How to contribute code to jQuery project?

You can contribute code to your jQuery project in a variety of ways. You can report errors, suggest new features, or contribute code. To contribute your code, you need to fork the jQuery repository on GitHub, make changes, and then submit the pull request.

What are the alternatives to jQuery?

jQuery has several alternatives, including native JavaScript and other JavaScript libraries such as React, Angular, and Vue.js. These alternatives offer different features and benefits, so the best choice depends on your specific needs and preferences.

How to learn more about jQuery?

There are many resources to help you learn more about jQuery. The official jQuery website provides comprehensive documentation and tutorials. There are also many online courses, books and tutorials on sites like Udemy, Coursera, and YouTube.

What is the future development of jQuery?

jQuery is still a popular and widely used JavaScript library. However, with the rise of modern JavaScript frameworks such as React, Angular, and Vue.js, the use of jQuery is declining. Nevertheless, jQuery is still a valuable tool for many developers and it will continue to be maintained and updated.