Release Notes for Safari Technology Preview 252

What happened

Safari Technology Preview Release 252 is now available for download for macOS Golden Gate and macOS Tahoe. If you already have Safari Technology Preview installed, you can update it in System Settings under General → Software Update.

( 319362@main ) (185152473) Fixed an animation of width or height being incorrectly accelerated when only some keyframes have a size-dependent transform . ( 319369@main ) (185162728) Fixed keyframes using revert-layer or revert-rule no longer being recomputed after a KeyframeEffect is copied.

( 320040@main ) (185206745) CSS New Features Added support for the named-feature() function in @supports conditions. ( 319412@main ) (183688843) Added support for CSSConditionRule.supports .

Key facts

• Safari Technology Preview Release 252 is now available for download for macOS Golden Gate and macOS Tahoe.
• If you already have Safari Technology Preview installed, you can update it in System Settings under General → Software Update.
• ( 319362@main ) (185152473) Fixed an animation of width or height being incorrectly accelerated when only some keyframes have a size-dependent transform .
• ( 319369@main ) (185162728) Fixed keyframes using revert-layer or revert-rule no longer being recomputed after a KeyframeEffect is copied.
• ( 320040@main ) (185206745) CSS New Features Added support for the named-feature() function in @supports conditions.