Safari Technology Preview Release 245 is now available, bringing WebKit improvements across multiple browser components.
- •Added support for case-sensitive modifier s in CSS attribute selectors and :host:has() compound selector
- •Fixed numerous CSS layout issues affecting aspect-ratio on flex children, font family serialization, and :has() style invalidation
- •Resolved performance regression in dynamic <img> insertion and improved HDR image rendering using GPU-backed surfaces
- •Fixed WebRTC video feed freezing with virtual backgrounds and screen sharing performance issues
- •Improved editing support for Vietnamese, Korean, and Zhuyin input methods with composition mode fixes
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