Web Inspector

• Console tab
  • Added showing the target of a WeakRef (264171@main)
  • Fixed timestamps taking up different amounts of space (264161@main)
• Sources tab
  • Fixed Step Over behaving like resume when stepping over a function with a falsy conditional breakpoint (264160@main)
• Storage tab
  • Fixed truncated localStorage editing giving the illusion of a proper edit and the truncated string being saved (264166@main)
• Fixed popovers so that only one can be displayed at a time (264159@main)

CSS

• Added support for @font-face { src: tech() } and @supports font-tech() (263725@main)
• Added support for @font-face size-adjust descriptor (263604@main)
• Fixed ascent for flex items that are scroll containers to be clamped to the border box (263974@main)
• Fixed text-shadow and box-shadow with currentcolor (264120@main)
• Fixed the containing block for items in a masonry columns grid to be the logical width of the grid’s content box (264011@main)
• Fixed not adding extra grid gap at the bottom of masonry rows (263657@main)
• Fixed computing masonry item offsets (263709@main)
• Fixed image-set to accept zero resolution and clamp negative resolutions used in calc expressions (264298@main)
• Fixed container query length units to use the content box instead of the border box (263595@main)
• Fixed CSS Masonry Layout to ensure grid size updates on resize (263712@main)
• Fixed overflow: clip fails when intrusive float is present (264101@main)
• Removed parsing support of left and right values for caption-side (264262@main)
• Renamed text-box-trim value normal to none (263702@main)
• Renamed leading-trim to text-box-trim to match the latest spec (263587@main)
• Renamed text-edge to text-box-edge to match the latest spec (263612@main)
• Fixed the bug that @supports selector() fails for all -webkit- prefixed pseudo elements (264090@main)

CSS Counter Styles

• Added support for extending ethiopic counter styles (263602@main)
• Added support for extending CJK counter styles (263542@main, 263544@main)

Web Animations

• Removed animation support for zoom (263908@main)

Rendering

• Fixed images with decoding="async" flickering while zooming in (264433@main)
• Fixed handling multi-column intrinsic inline-size changes (264292@main)
• Fixed SVG use element doesn’t render if it references a subsequent element after a style resolution (264085@main)
• Fixed alt texts rendered horizontally in vertical writing mode (263776@main)
• Fixed OffscreenCanvas rendering hiding the border from the element (263731@main)
• Complex text path: Make tab glyph invisible after advancing (263929@main)
• Fixed text not wrapping in a nested grid (264252@main)
• Changed to respect style containment on list items (264273@main)
• Fixed negative shadow repaint issue (263899@main)
• Fixed width of textarea with overflow hidden including scrollbar thickness (264095@main)
• Fixed textarea’s logical height with overflow: auto to not include scrollbar-thickness (264251@main)

JavaScript

• Cached default Intl NumberFormat (264057@main)
• Cached lookups of ProxyObject’s traps (263944@main)
• Changed to not use Strong<> in VM and simplify jsString (264099@main)
• Changed to not use Vector as intermediate transfer buffer for typed array (263942@main)
• Disabled Array#group and Array#groupToMap (263922@main)
• Fixed definePropertyOnReceiver() to account for put_by_val_with_this bytecode op (263559@main)
• Fixed /\p{Number}--]/v; to be a syntax error (264175@main)
• Fixed JSON.parse to use simple recursion until it hits a soft-recursion threshold (263744@main)
• Fixed StringConstructor constant function inlining in the case of [[Construct]] (264191@main)
• Fixed Stringifier to quickly get names even if it involves accessors (263619@main)
• Optimized Dictionary access (264040@main)
• Optimized JSON.stringify integer serialization (263765@main)

Popover

• Changed to not throw when popover or dialog is in requested state (263957@main)
• Changed to only use the invoker to establish popover hierarchy (264002@main)
• Changed to use the <dialog> focus algorithm for dialog popovers (263749@main)
• Changed hidePopover to restore focus only when focus was in the popover (263645@main)
• Reset the invoker in showPopover() (264006@main)

Web API

• Added more explicit error messages for new URL(url, base) Constructor (264129@main)
• Added value argument to URLSearchParams’s has() and delete() (263726@main)
• Added support for AbortSignal.any() (264163@main)
• Added support for ServiceWorkerRegistration.getNotifications() (264169@main)
• Added support for the <search> element (264110@main)
• Exposed DeviceMotionEvent and DeviceOrientationEvent on the global Window object on macOS (264271@main)
• Changed document.body.onerror setter to setup a five-parameter listener (264190@main)
• Changed the HTML parser to allow <hr> to be used inside <select> as a separator per a recent HTML Standard change the WebKit team contributed, which makes it easier to add a visual separator on macOS (263624@main)
• Changed to not escape <, >, &, and nbsp inside a <noscript> element when scripting is enabled (263633@main)
• Changed to respect Content-Type from internal headers instead of caching it in body (264054@main)
• Changed to allow relative URLs and http(s) scheme in the WebSocket constructor (263968@main)
• Changed WebSocket‘s binaryType setter to not throw (263963@main)
• Fixed firing a controllerchange event on clients when a service worker gets deleted (264255@main)
• Fixed running a service worker before firing its activate event (264242@main)
• Fixed document.write of template producing multiple text nodes (263841@main)
• Fixed event dispatching on disabled form controls (264098@main)
• Fixed a bug in the preload scanner with nested templates (263850@main)
• Fixed node depth computation for shadow nodes in ResizeObserver (263920@main)
• Fixed revealing the focused input element in an event loop task instead of a post layout task (263665@main)
• Fixed <input type="date"> with an invalid date to return an empty string for the value instead of the default value (263784@main)
• Fixed sanitizing email input when the multiple attribute is set (263555@main)
• Fixed selecting a link and pasting plain text changes text in the link, but not the link href (263539@main)
• Fixed StorageManager.persist() (263930@main)
• Fixed input.validity reporting valid: true for partially completed dates and times (263748@main)
• Fixed Compression Streams not handling large outputs during the flush stage (263997@main)
• Mapped align="abscenter" to vertical-align: middle (263852@main)

Media

• Added support for getDisplayMedia video track clone resizing (263750@main)
• Exposed aspectRatio and frameRate in RTCPeerConnection remote MediaStreamTrack settings (263849@main)
• Fixed camera and microphone to all have groupIds (264112@main)

Accessibility

• Fixed the HTML <menu> element to map to role=list (264077@main)
• Fixed aria-describedby to be equivalent to aria-description and override it when both are present (263813@main)
• Fixed slot elements not computing a label for aria-labelledby (263644@main)
• Fixed slotted elements inside <dialog> and aria-modal not being accessible (263561@main)

SVG

• Fixed <marker orient="-1"> to orient correctly (264053@main)
• Fixed overflow="visible" having no effect on the dimension of a use element unless its dimensions are specified (263977@main)