--- title: jQuery Releases v4: First Major Version in Almost 10 Years description: jQuery 4.0 has been released, marking the first major version in nearly 10 years and coinciding with the library's 20th anniversary. Key changes include... canonical: https://daily.dev/posts/jquery-releases-v4-first-major-version-in-almost-10-years-tvf7uw4a5 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: jQuery Releases v4: First Major Version in Almost 10 Years | daily.dev og:description: jQuery 4.0 has been released, marking the first major version in nearly 10 years and coinciding with the library's 20th anniversary. Key changes include... og:url: https://daily.dev/posts/jquery-releases-v4-first-major-version-in-almost-10-years-tvf7uw4a5 og:image: https://api.daily.dev/og/posts/TvF7uW4a5.png og:image:alt: jQuery Releases v4: First Major Version in Almost 10 Years og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # jQuery Releases v4: First Major Version in Almost 10 Years **[InfoQ](https://daily.dev/sources/infoq)** · 4 min read · 0 upvotes · 0 comments ## Summary jQuery 4.0 has been released, marking the first major version in nearly 10 years and coinciding with the library's 20th anniversary. Key changes include dropping support for IE10 and older browsers, migrating the source from AMD to ES modules, switching from RequireJS to Rollup for packaging, and removing deprecated utility functions like jQuery.isArray and jQuery.parseJSON in favor of native browser equivalents. The slim build now weighs around 19.5k bytes gzipped. Trusted Types support has been added for improved CSP compliance. The jQuery Migrate plugin and a comprehensive upgrade guide are available to ease the transition. Community reaction is largely positive, with developers noting jQuery's continued relevance for maintaining legacy codebases, progressive enhancement, and server-rendered sites. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [jQuery 4.0.0 JavaScript library features trusted types](https://daily.dev/posts/jquery-4-0-0-javascript-library-features-trusted-types-ycv0lqp4p) · InfoWorld · 2 upvotes · 0 comments - [jQuery 4 – Frontend Masters Blog](https://daily.dev/posts/jquery-4-frontend-masters-blog-i3yph3gan) · Frontend Masters · 66 upvotes · 5 comments - [jQuery 4.0.0 Support: What’s New \+ Kendo UI Has You Covered](https://daily.dev/posts/jquery-4-0-0-support-what-s-new-kendo-ui-has-you-covered-e9qndqpbt) · Telerik · 0 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#webdev](https://daily.dev/tags/webdev), [#javascript](https://daily.dev/tags/javascript), [#jquery](https://daily.dev/tags/jquery) [View this post on daily.dev](https://daily.dev/posts/jquery-releases-v4-first-major-version-in-almost-10-years-tvf7uw4a5) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"jQuery Releases v4: First Major Version in Almost 10 Years","url":"https://daily.dev/posts/jquery-releases-v4-first-major-version-in-almost-10-years-tvf7uw4a5","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/jquery-releases-v4-first-major-version-in-almost-10-years-tvf7uw4a5"},"datePublished":"2026-02-20T12:44:00.831Z","dateModified":"2026-02-26T17:35:11.641Z","description":"jQuery 4.0 has been released, marking the first major version in nearly 10 years and coinciding with the library's 20th anniversary. 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