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WebKit

Safari 26.2 introduces 62 new web platform features and fixes 165 bugs. Major additions include CSS field-sizing for auto-growing text fields, HTML button commands for controlling popovers and dialogs without JavaScript, Navigation API for building single-page apps, and anchor positioning improvements. The release adds text shaping across element boxes for languages like Arabic, full-width number normalization, CHIPS for partitioned cookies, WebGPU support in WebXR on visionOS, and various CSS enhancements including random() and sibling functions, scrollbar-color property, and improved initial letter support. JavaScript gains Math.sumPrecise() and Map.getOrInsert(), while WebAssembly adds resizable buffer APIs. Performance measurement tools like Event Timing API and Largest Contentful Paint are now supported.

WebKit Features for Safari 26.2