WebKit Features in Safari 18.4

Safari 18.4 introduces 84 new features including a new declarative mechanism for Web Push notifications, a new CSS shape() function, enhancements to the HTML color picker, media format support, Web APIs, and JavaScript features. The update also includes thousands of resolved issues and deprecations aimed at improving compatibility. The Web Inspector has been enhanced with device viewport presets and a more configurable request inspection process. Additional improvements span across networking, storage, connection security, canvas rendering, and web extensions.