Safari Technology Preview Release 227 is available for macOS Tahoe and macOS Sequoia and includes WebKit changes between 298484@main and 299099@main. Accessibility improvements add automatic scrolling of off-screen <input type="radio"> elements into view when focused to aid screen reader and keyboard navigation. Animation updates add endpoint-inclusive active intervals in Animation.commitStyles() and fix issues with extremely large animation-duration values and committing custom and logical properties. CSS updates add support for cursor on pseudo-elements, position-visibility, the math-shift property for MathML, remembering position-try fallbacks for anchor positioning, position-try on pseudo-elements, and fractional initial-letter values.
"Added support for the cursor property on pseudo-elements. (298777@main) (90364915) Added support for the position-visibility property. (298622@main) (129789653) Added support for the new math-shift CSS property to control compact or "cramped" rendering of MathML formulas, reducing vertical shifts for superscripts. (298839@main) (138023006) Added support for remembering the last successful position-try fallback in CSS anchor positioning to reduce layout jumps when styles change. (298718@main) (154352444) Added support for position-try on pseudo-elements like ::before, ::after, and ::backdrop. (298519@main) (156550553)"
"Added support for endpoint-inclusive active intervals in Animation.commitStyles() to correctly persist styles for completed animations. (299031@main) (158684709) Resolved Issues Fixed a bug where extremely large animation-duration values could cause the page to become unresponsive. (298975@main) (158775366) Fixed Animation.commitStyles() so that custom properties are properly committed to the target element. (299045@main) (158919736) Fixed Animation.commitStyles() to correctly commit logical properties as their corresponding physical properties. (299046@main) (158920529)"
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