"Now, in 2026, the landscape looks different. React, Vue, and Svelte dominate new development. Yet, jQuery remains the backbone of the internet. It powers millions of legacy sites, WordPress themes, and enterprise dashboards. The jQuery team has officially released jQuery 4.0.0. This is the first major release in nearly ten years. It represents a shift from "compatibility at all costs" to "modernization where possible.""
"jQuery 4.0 drops support for Internet Explorer 10 and all earlier versions. The team preserved IE11 support temporarily but plans to remove it in jQuery 5.0. This staged deprecation approach gives enterprise teams additional time to phase out legacy browser requirements. The removed browser list also includes Edge Legacy (the pre-Chromium version), iOS versions older than the most recent three releases, Firefox versions older than the most recent two (excluding ESR), and Android Browser."
jQuery 4.0 modernizes the library after nearly ten years by shifting from compatibility-first to modernization where possible. The release targets teams maintaining legacy codebases that still rely on jQuery for DOM manipulation, AJAX, and animation. A companion migration guide and an updated jQuery Migrate plugin assist in identifying and fixing compatibility issues. Browser support is narrowed: IE10 and older are dropped, IE11 retained temporarily with planned removal in jQuery 5.0, and Edge Legacy, older iOS and Firefox versions, and Android Browser are removed. The revised support matrix focuses on current mainstream browsers and permits removal of substantial legacy compatibility code.
Read at Jqueryscript
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