# Safari Technology Preview 248 Release Notes Learn about the latest web technology updates in Safari Technology Preview: Accessibility, CSS, Editing, Formes, Images, JavaScript, Media, Navigation, Networking, Rendering, SVG, Scrolling, Security, Storage, Web API, Web Inspector, WebDriver, and WebRTC. ## Overview [Safari Technology Preview](https://webkit.org/blog/6017/introducing-safari-technology-preview/) Release 248 is now [available for download](https://developer.apple.com/safari/resources/) 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. This release includes WebKit changes between: [315567@main…316817@main](https://github.com/WebKit/WebKit/compare/666fd351d376a96584c357fee973f74f701800be...84565916779faa5f54b09bc075add03a779723c1). ### Accessibility #### Resolved Issues - Fixed VoiceOver on Safari unable to navigate to content revealed by disclosure widgets using `hidden="until-found"`. ([315964@main](https://commits.webkit.org/315964@main)) (173228707) - Fixed stale `aria-labelledby` when the referenced element dynamically changes its `aria-label`. ([316316@main](https://commits.webkit.org/316316@main)) (180319221) ### CSS #### New Features - Added support for forwarding missing color components when interpolating between analogous color spaces. ([315569@main](https://commits.webkit.org/315569@main)) (180239320) - Added support for the `no-clamp` option on the CSS `progress()` function. ([315977@main](https://commits.webkit.org/315977@main)) (180473472) #### Resolved Issues - Fixed serialization of various CSS at-rules not escaping identifiers. ([315795@main](https://commits.webkit.org/315795@main)) (178750383) - Fixed `:last-child` and related selectors incorrectly gating on parser state outside of style resolution. ([316495@main](https://commits.webkit.org/316495@main)) (178879939) - Fixed changing the `color-scheme` of an `