Web Inspector

• Sources
  • Collapsed blackboxed call frames in the Call Stack section (r272371)

CSS

• Added support for aspect-ratio on grid items (r272307)
• Added support for logical variants of scroll-padding and scroll-margin (r272035)
• Added support for color(a98-rgb ...), color(prophoto-rgb ...), color(rec2020 ...), color(xyz ...), hwb() as part of CSS Color 4 (r271992, r272125, r272123, r272311, r272344)
• Added support for percentages when parsing color(srgb ...) and color(display-p3 ...) per-spec (r271866)
• Changed sRGB to XYZ conversion matrix values to match values in the latest spec (r272498)
• Fixed max-height percentages that are wrongly resolved for replaced grid items (r272309)
• Fixed grid item to fill the grid area for stretch or normal self alignment (r272308)
• Fixed animation of rotate or scale property to correctly account for static translate property (r272201)
• Fixed font-stretch to apply to system-ui (r272073)
• Fixed the nested grid container which has a replaced item with max-height incorrectly getting width(0px) (r272338, r272711)
• Implemented scroll-snap-stop for scroll snapping (r272610)
• Handled aspect-ratio: auto m/n for replaced elements (r272360)
• Handled min-width: auto or min-height: auto for aspect-ratio (r272718)
• Handled zero aspect-ratio width or height (r271948)
• Made auto && <ratio> use content box-sizing (r272569)

GPU Process

• Enabled audio capture in GPUProcess by default (r272735)
• Enabled audio capture for speech recognition in GPUProcess (r272434)
• Enabled GPU WebRTC codecs in GPUProcess by default on macOS (r272496)
• Enabled video capture in GPUProcess by default on macOS (r272810)
• Fixed <audio> not loading when the URL ends with .php causing some tests to time out (r272750)
• Fixed implementation of WebGL power preference and discrete/internal GPU selection with ANGLE (r271880)

Media

• Added intermediate volume icon states between “mute” and “max” (r272375)
• Changed media controls to show the total duration, only switching to time remaining when clicked (r272373)
• Changed MediaStream-backed video elements to not compute the mediaType based on track muted states (r272583)
• Connected MediaSession with MediaRemote and NowPlaying (r272445, r272589)
• Fixed sound on YouTube after switching back to foreground (r272829)
• Fixed playback of WebM/Opus generated from Chrome MediaRecorder (r272822)
• Fixed Picture-in-Picture video pauses when scrolling on Twitter (r271870)
• Updated media controls time scrubber styles (r272352, r272438)
• Updated media controls to use new SF Symbols (r272339)

Web API

• Fixed the return key binding for date inputs conflicting with pressing return to submit a form (r272495
• Fixed selecting a date on datetime-local inputs unexpectedly adding second and millisecond fields (r272368)
• Fixed rendering a pattern with an SVG image (r272549)
• Forbid “|” in URL hosts (r271899)
• Reduced the overhead of HTMLDocumentParser in innerHTML setter (r272622)

JavaScript

• Added @ in Error#stack even if function name does not exist (r272139)
• Added Atomics support for BigInt64Array and BigUint64Array behind a runtime flag (JSC_useSharedArrayBuffer=1) (r272341)
• Adjusted properties order of host JS functions (r272099)
• Changed Object.assign to throw for property creation on non-extensible target (r272411)
• Handled milliseconds in Date’s timezone without floating point rounding (r272127)
• Implemented BigInt64Array and BigUint64Array (r272170, r272215)
• Implemented private methods behind flag (JSC_usePrivateMethods=1)(r272580)
• Made JSON.parse faster by using table for fast string parsing (r272570)

WebAssembly

• Implemented WebAssembly.instantiateStreaming and WebAssembly.compileStreaming (r271993)
• Implemented streaming compilation/instantiation for the Blob type (r272221)
• Updated WebAssembly.Global to support Funcref and Externref (r272071, r272081, r272119)
• Enabled Wasm bulk-memory and reference-types (r272074)

Accessibility

• Exposed focusable elements even if the element or ancestor has aria-hidden=true (r272390)
• Fixed long narrow tables to not be made into data tables unnecessarily (r272024)

Speech Recognition

• Used the user media permission prompt for Speech Recognition (r272165)