--- title: Safari Technology Preview 172 Release Notes framework: safari-technology-preview-release-notes role: article role_heading: Article path: safari-technology-preview-release-notes/stp-release-172 --- # Safari Technology Preview 172 Release Notes Learn about the latest web technology updates in Safari Technology Preview: Web Inspector, CSS, Image Set, Rendering, Editing, JavaScript, Media, Popover, SVG, Accessibility, HTML, IndexedDB, and Web API. ## Overview Overview Safari Technology Preview Release 172 is now available for download for macOS Ventura. 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: 264302@main…264854@main. Web Inspector Fixed truncation for deeply nested async stack traces to avoid infinite nesting (264354@main) Fixed XHR request with the same URL as the main resource to have an XHR type (264686@main) CSS Added unprefixed hyphens and hyphenate-character CSS properties (264628@main) Added :has() invalidation support for :defined pseudo class (264602@main) Added nowrap white-space to the User-Agent Stylesheet for the option element (264691@main) Fixed child-indexed pseudo-classes to match root elements (264620@main) Fixed baseline alignment to not synthesize the first baseline when a flex item block axis is parallel to a flex cross axis (264423@main) Fixed input elements to respect line heights smaller than normal (264802@main) Fixed computing table overflow to take overflow: clip into account (264849@main) Fixed viewport layout size when a site specifies an initial scale (264842@main) Image Set Fixed type() function to only take one string (264310@main) Fixed image-set options with identical resolutions to choose the first supported image type (264481@main) Rendering Fixed calculating the actual column count to avoid floating point precision issues (264667@main) Fixed wrong input text position with line-height (264613@main) Fixed which element scrollbar-width is resolved from for the viewport (264632@main) Fixed resize handles to render correctly when scrollbar-width is none (264630@main) Editing Fixed option and optgroup to not be focusable in a menulist (264755@main) Fixed text selection to appear correctly for partially rotated text (264556@main) Fixed the caret color when specifying caret-color: auto (264818@main) Fixed the input renderer applying overflow clipping to the content box (264731@main) Fixed matching elements without a parent with child-indexed pseudo-classes (264620@main) Fixed overflowing placeholder text inside an input (264684@main) Fixed clipping a caret rect changing size instead of clipping (264708@main) JavaScript Added String#split cache (264749@main) Allowed CellOrOther for PutByVal etc. (264683@main) Disabled fp-contract explicitly for Date math (264453@main) Fixed to use ApproximateTime in CodeCache (264640@main) Media Fixed WebRTC backed media element rendering layer changes slowly (size or layer made hidden/visible) (264777@main) Added the BufferedChangeEvent object (264472@main) Fixed media recorder producing empty chunks (264478@main) Fixed getDisplayMedia capture to mute other tabs when starting (264611@main) Popover Fixed hidePopover to prevent a recursive loop (264623@main) SVG Fixed animateMotion to accumulate properly with rotate: auto or rotate: auto-reverse (264595@main) Fixed to not create an interval if a value in begin-value-list doesn’t have a matching value in end-value-list (264635@main) Fixed using a nested SVG resource (264618@main) Fixed the computed display for SVG elements (264627@main) Fixed the mapping from a point to a character index for the SVG element (264796@main) Accessibility Fixed aria-checked to work for role="treeitem" elements with display: contents (264761@main) Fixed display: contents lists to return the correct sub-role (264644@main) Fixed elements with the popovertarget attribute to expose expanded state to assistive technologies (264852@main) HTML Removed -webkit-user-select: none from draggable elements (264448@main) IndexedDB Fixed an array keyPath to yield an array key (264479@main) Web API Added applying cookie policy on WebSocket requests (264753@main) Fixed the change event to fire when the user reverts the value of a color, date, time, or datetime input after JavaScript changed the value (264528@main) Fixed images with decoding="async" flickering while zooming in (264433@main) Fixed forbidden host and domain code points to align with specifications (264482@main) Fixed to not fire a mousemove event when a modifier key is pressed (264455@main) Fixed the heuristics for reporting storage quota (264446@main) Fixed CSS.supports() to always use no-quirks mode (264835@main) Fixed window.stop() to fire abort events on XMLHttpRequest asynchronously (264765@main) Fixed navigator.credentials.preventSilentAccess() (264345@main) Fixed HTMLOptionElement text setter to not have a non-conforming observable behavior (264442@main) Fixed ignoring bidi control characters while collecting fallback fonts (264509@main) Fixed missing network connection integrity policies when connecting via (264382@main) Fixed to resolve percentage in use against the instance’s viewport element (264596@main) Fixed selecting an OptGroup label not unselecting the selected item (264767@main) Fixed ServiceWorker downloads when chunks are sent via postMessage (264412@main) ## See Also ### 2023 - [Safari Technology Preview 185 Release Notes](safari-technology-preview-release-notes/stp-release-185.md) - [Safari Technology Preview 184 Release Notes](safari-technology-preview-release-notes/stp-release-184.md) - [Safari Technology Preview 183 Release Notes](safari-technology-preview-release-notes/stp-release-183.md) - [Safari Technology Preview 182 Release Notes](safari-technology-preview-release-notes/stp-release-182.md) - [Safari Technology Preview 181 Release Notes](safari-technology-preview-release-notes/stp-release-181.md) - [Safari Technology Preview 180 Release Notes](safari-technology-preview-release-notes/stp-release-180.md) - [Safari Technology Preview 179 Release Notes](safari-technology-preview-release-notes/stp-release-179.md) - [Safari Technology Preview 178 Release Notes](safari-technology-preview-release-notes/stp-release-178.md) - [Safari Technology Preview 177 Release Notes](safari-technology-preview-release-notes/stp-release-177.md) - [Safari Technology Preview 176 Release Notes](safari-technology-preview-release-notes/stp-release-176.md) - [Safari Technology Preview 175 Release Notes](safari-technology-preview-release-notes/stp-release-175.md) - [Safari Technology Preview 174 Release Notes](safari-technology-preview-release-notes/stp-release-174.md) - [Safari Technology Preview 173 Release Notes](safari-technology-preview-release-notes/stp-release-173.md) - [Safari Technology Preview 171 Release Notes](safari-technology-preview-release-notes/stp-release-171.md) - [Safari Technology Preview 170 Release Notes](safari-technology-preview-release-notes/stp-release-170.md)