--- title: Safari Technology Preview 225 Release Notes framework: safari-technology-preview-release-notes role: article role_heading: Article path: safari-technology-preview-release-notes/stp-release-225 --- # Safari Technology Preview 225 Release Notes Learn about the latest web technology updates in Safari Technology Preview: Accessibility, CSS, Canvas, HTML, JavaScript, Rendering, SVG, WebDriver, and WebRTC. ## Overview Overview Safari Technology Preview Release 225 is now available for download for macOS Tahoe and macOS Sequoia. If you already have Safari Technology Preview installed, you can update it in System Settings under General → Software Update. This release includes WebKit changes between: 297036@main…297660@main. Accessibility Resolved Issues Fixed incorrect accessibility bounds of SVG roots, ensuring assistive technologies have access to the correct geometry. (297649@main) (153782363) CSS Resolved Issues Fixed the default computed value for text-emphasis-style: filled|open to be filled|open circle not filled|open dot in horizontal typographic modes. (297616@main) (155911820) HTML New Features Added support for auto-expanding
element. (297083@main) (155256522) Added support for hidden=until-found. (297084@main) (155256718) JavaScript Resolved Issues Fixed the order of function’s special properties returned by Object.keys and Object.entries. (297260@main) (155607661) Fixed compatibility issues with the timezone option in the Intl.DateTimeFormat constructor. (297594@main) (156148700) Fixed Intl.Local#language to return "und" if the language subtag is "und". (297585@main) (156248659) Rendering Resolved Issues Fixed anchor-center to shift to fit in the original containing block. (297226@main) (153569520) Fixed chained anchors to scroll with their anchor. (297286@main) (154355127) Fixed anchor-positioned or fixed-positioned element getting clipped by the viewport. (297297@main) (154908754) Fixed file upload to have a consistent baseline when the file selector is display: none. (297516@main) (155109925) Fixed computing static position to correctly size and locate an inset modified containing block. (297403@main) (155650719) Fixed alignment candidate to consider both first and last baseline item position. (297402@main) (155806707) WebDriver Resolved Issues Fixed an issue where events could be dispatched to an incorrect frame due to a stale state. (297613@main) (155933183) WebRTC Deprecations Removed the fec and rtx from WebRTC encoding parameters. (297107@main) (155046829) ## See Also ### 2025 - [Safari Technology Preview 234 Release Notes](safari-technology-preview-release-notes/stp-release-234.md) - [Safari Technology Preview 233 Release Notes](safari-technology-preview-release-notes/stp-release-233.md) - [Safari Technology Preview 232 Release Notes](safari-technology-preview-release-notes/stp-release-232.md) - [Safari Technology Preview 231 Release Notes](safari-technology-preview-release-notes/stp-release-231.md) - [Safari Technology Preview 230 Release Notes](safari-technology-preview-release-notes/stp-release-230.md) - [Safari Technology Preview 229 Release Notes](safari-technology-preview-release-notes/stp-release-229.md) - [Safari Technology Preview 228 Release Notes](safari-technology-preview-release-notes/stp-release-228.md) - [Safari Technology Preview 227 Release Notes](safari-technology-preview-release-notes/stp-release-227.md) - [Safari Technology Preview 226 Release Notes](safari-technology-preview-release-notes/stp-release-226.md) - [Safari Technology Preview 224 Release Notes](safari-technology-preview-release-notes/stp-release-224.md) - [Safari Technology Preview 223 Release Notes](safari-technology-preview-release-notes/stp-release-223.md) - [Safari Technology Preview 222 Release Notes](safari-technology-preview-release-notes/stp-release-222.md) - [Safari Technology Preview 221 Release Notes](safari-technology-preview-release-notes/stp-release-221.md) - [Safari Technology Preview 220 Release Notes](safari-technology-preview-release-notes/stp-release-220.md) - [Safari Technology Preview 219 Release Notes](safari-technology-preview-release-notes/stp-release-219.md)