--- title: Safari Technology Preview 228 Release Notes framework: safari-technology-preview-release-notes role: article role_heading: Article path: safari-technology-preview-release-notes/stp-release-228 --- # Safari Technology Preview 228 Release Notes Learn about the latest web technology updates in Safari Technology Preview: Accessibility, CSS, DOM, Editing, Forms, JavaScript, Media, PDF, Rendering, SVG, Service Worker, Web API, Web Extensions, Web Inspector, WebGPU, and WebRTC. ## Overview Overview Safari Technology Preview Release 228 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: 299100@main…299754@main. Accessibility New Features Added support for auto-expanding details and hidden=“until-found” elements for text searches done via assistive technologies. (299649@main) (159913471) Resolved Issues Fixed an issue where VoiceOver reports the wrong radio count with a dynamically inserted radio option. (299585@main) (159221583) Fixed exposing content within dynamically expanded details elements in the accessibility tree. (299601@main) (159291226) CSS New Features Added support for :scope when the scoping root is :visited. (299560@main) (157588890) Added support for using color-mix() without a color space, defaulting to oklab. (299440@main) (159039709) Added support for display-p3-linear colors in CSS. (299381@main) (159579630) Resolved Issues Fixed -webkit-user-select: none disabling find-in-page in Safari. (299624@main) (8081660) Fixed anchor position to only generate position options on base style. (299135@main) (158900076) Fixed out-of-flow box with no sibling ignoring align-content. (299107@main) (159097576) Fixed performance of :has(> .changed) .subject selectors. (299162@main) (159173631) Fixed handling of the ::first-line pseudo-element when floats prevent the initial line from containing inline content, ensuring correct styling is applied to the actual first formatted line. (299402@main) (159613287) DOM Resolved Issues Fixed an issue where command-clicking to open a link in a new tab navigates the current tab. (299537@main) (57216935) Editing Resolved Issues Fixed jumbled text when copy/pasting bidirectional text starting with left-to-right. (299176@main) (152236717) Forms Resolved Issues Fixed