Release Notes for Safari Technology Preview 254

Oct 8, 2026

by Jon Davis

Safari Technology Preview Release 254 is now available for download 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: 321068@main…322634@main.

Accessibility

Resolved Issues

  • Fixed VoiceOver on iOS not identifying date, time, and color inputs as pop-up buttons. (321384@main) (187696500)
  • Fixed VoiceOver being unable to press buttons, links, and form controls styled with pointer-events: none. (322472@main) (188003870)
  • Fixed VoiceOver announcing every focused ARIA menuitem, menuitemcheckbox, and menuitemradio as “selected”. (322397@main) (188185386)
  • Fixed an issue on iOS where an error message made of several pieces of text was read in reverse order with some text repeated. (322318@main) (188764297)

Animations

Resolved Issues

  • Fixed view timeline animations freezing once a sticky-positioned inline ancestor sticks to the scroll container. (321094@main) (187300111)
  • Fixed an issue where accelerated animations of opacity to 0, including scroll-driven animations, could leave elements fully visible instead of transparent. (322355@main) (187682187)

CSS

New Features

  • Added support for the size, min-size, and max-size shorthand properties. (321710@main) (187495014)
  • Added support for the border-*-radius side shorthands, such as border-top-radius, which set the radii of both corners on one side of a box at once. (322537@main) (187605885)
  • Added support for the interpolate-size property, which allows animations and transitions to and from intrinsic sizing keywords such as auto, min-content, and fit-content. (321370@main) (187701518)
  • Added support for the symbols() function for defining anonymous counter styles. (321624@main) (188048446)
  • Added support for CSS linked parameters, including the link-parameters property and param(), for passing values into linked SVG images. (321822@main) (188217737)
  • Added support for the calc-size() function, which allows calculations on intrinsic sizes such as auto, fit-content, and max-content. (322574@main) (188996389)

Resolved Issues

  • Fixed CSS Grid relayout cost growing quadratically with the number of grid items that have distinct order values. (321853@main) (173962596)
  • Fixed CSS Grid track sizing for items that span multiple tracks to follow the current specification for distributing extra space, including to non-affected tracks. (322402@main) (182725333)
  • Fixed table cells after an empty width: 0 column being placed off-screen. (322376@main) (183452074)
  • Fixed the rendering of outlines with a negative outline-offset on elements that use corner-shape. (321259@main) (186820849)
  • Fixed line-clamp and -webkit-line-clamp to share the same underlying values and cascade correctly against each other, with -webkit-line-clamp now treated as a shorthand. (322292@main) (187100061)
  • Fixed sibling-index() and sibling-count() returning 1 for children of a shadow root. (321182@main) (187201634)
  • Fixed line-clamp, max-lines, and block-ellipsis to match the latest specification syntax, allowing max-lines and line-clamp to combine auto with an integer and block-ellipsis to accept no-ellipsis, ellipsis, or a string. (321832@main) (187371224)
  • Fixed grid track sizing for items that span multiple tracks so that they are sized in groups by span count, as the CSS Grid specification requires. (321194@main) (187413690)
  • Fixed a min-content inline size to give both the min-content and max-content contributions of an element that size. (321278@main) (187601903)
  • Fixed an issue where a stretched grid item whose padding exceeded its grid area was sized narrower than its own padding. (321295@main) (187612019)
  • Fixed implicit named grid lines created by grid-template-areas sometimes being empty. (321401@main) (187753954)
  • Fixed fit-content() grid tracks growing beyond their limit when distributing extra space. (321720@main) (187757242)
  • Fixed grid layout to use a grid item’s margin box, rather than its border box, for its minimum size contribution so items with margins size their tracks correctly. (321614@main) (187850851)
  • Fixed clip-path with a <geometry-box> value ignoring corner-shape and clipping to rounded corners instead. (321557@main) (187891292)
  • Fixed a flex item’s base size ignoring the space available to it when its main size is fit-content. (322557@main) (187932371)
  • Fixed a box with a fixed width ignoring max-width: max-content when contributing its intrinsic size. (322298@main) (188008779)
  • Fixed grid track sizing so a track’s growth limit is never initialized smaller than its base size. (321616@main) (188023571)
  • Fixed the intrinsic width of grid containers with contain: inline-size, container-type: inline-size, or content-visibility: hidden so it comes from contain-intrinsic-size rather than the grid items. (321612@main) (188029152)
  • Fixed missing repaints in CSS Grid layouts when grid items move. (321737@main) (188142676)
  • Fixed table-layout: fixed being ignored when a table’s width is intrinsic, min-intrinsic, or a calc-size() value. (322409@main) (188201473)
  • Fixed relative color syntax to preserve none channel values that are referenced directly, so oklab(from oklab(none none none) l a b) resolves to oklab(none none none). (321724@main) (188215354)
  • Fixed color serialization so that sRGB colors with none components serialize using color(srgb ...), and hsl() and hwb() colors serialize their saturation, lightness, whiteness, and blackness components as percentages. (321758@main) (188254602)
  • Fixed relative color syntax so that missing (none) components are preserved instead of becoming 0 when the origin color is converted to a different color space. (321802@main) (188300348)
  • Fixed relative alpha() colors to serialize in the most precise form using color() syntax, matching color-mix() and other relative color expressions. (321829@main) (188323511)
  • Fixed relative alpha() color functions to require an alpha parameter, so values like alpha(from red) are now invalid, following a CSS Working Group resolution. (321852@main) (188339902)
  • Fixed deprecated CSS system colors, such as ActiveBorder, Menu, Scrollbar, ThreeDFace, and Window, to compute to their CSS Color 4 equivalents on macOS. (322193@main) (188365953)
  • Fixed border-image-repeat: round to round the tile count to the nearest whole number instead of rounding it down. (321996@main) (188369219)
  • Fixed a regression where elements with aspect-ratio inside a column flex container did not shrink when the container got narrower. (321951@main) (188393652)
  • Fixed line-clamp to make room for the block ellipsis during line breaking, moving content that doesn’t fit next to the ellipsis to the next line, including nowrap content. (322495@main) (188393991)
  • Fixed line-clamp so that when the block ellipsis displaces all content on the clamped line, only the ellipsis remains and the line is not made taller by inline boxes. (322500@main) (188440163)
  • Fixed an issue where grid items with aspect-ratio and a percentage height did not shrink when the grid got narrower. (322176@main) (188444964)
  • Fixed CSS color conversion to follow the latest specification rules for missing hue components on achromatic colors, including in hsl() and hwb(). (321984@main) (188471496)
  • Fixed line-clamp adding a block ellipsis to the last line when all of the content fits within the line limit. (322510@main) (188500712)
  • Fixed line-clamp to count the lines of nested blocks towards the maximum number of lines. (322521@main) (188535368)
  • Fixed an issue where a justified line came up short when its hanging trailing whitespace was inside an inline box. (322224@main) (188548682)
  • Fixed line-clamp to remove hanging trailing whitespace before the block ellipsis. (322531@main) (188551752)
  • Fixed an issue where line-clamp was ignored on floats and absolutely positioned boxes. (322551@main) (188552622)
  • Fixed an issue where ruby annotations lost their text inside a line-clamp container. (322578@main) (188552871)
  • Fixed an issue where text inside a display: contents element inherited the wrong style after its parent’s style changed. (322092@main) (188591349)
  • Fixed line-clamp incorrectly clamping lines on a multi-column container. (322584@main) (188595965)
  • Fixed an issue where changing the width of a line-clamp container showed the lines past the clamp point. (322600@main) (188596942)
  • Fixed aspect-ratio being ignored on absolutely positioned boxes with height: fit-content, min-content, or max-content. (322178@main) (188597811)
  • Fixed line-clamp: auto to clamp at the container’s block size. (322603@main) (188621599)
  • Fixed an issue where changing shape-image-threshold did not update the shape when the shape image was a gradient. (322232@main) (188772999)
  • Fixed grid items ignoring their ::first-line styles in certain cases. (322319@main) (188830233)
  • Fixed fit-content() grid tracks with a percentage argument being stretched when the grid’s size is indefinite. (322421@main) (188848301)
  • Fixed overflow-wrap: anywhere keeping extra characters on a line, or breaking inside a surrogate pair, next to punctuation that is prohibited at the start of a line. (322554@main) (188884467)
  • Fixed the initial value of position-visibility to be anchor-visible. (322565@main) (188939499)

Canvas

Resolved Issues

  • Fixed rect() using the wrong winding direction when given a negative width or height. (322101@main) (188036092)
  • Fixed TextMetrics emHeightAscent and emHeightDescent to add up to the font’s em size, and updated the top, hanging, middle, ideographic, and bottom baselines to match when drawing text. (322077@main) (188368945)
  • Fixed sizing of image sources, such as SVG images without a natural size, used by canvas drawImage() and createPattern(), createImageBitmap(), WebGL, and VideoFrame to follow CSS object size negotiation. (322003@main) (188524860)

Deprecations

  • Removed support for the non-standard darker value of globalCompositeOperation. (321811@main) (188035440)

Editing

Resolved Issues

  • Fixed an issue where the caret was hard to see after pasting wrapped text whose color contrasts poorly with the editor’s background, such as dark text pasted into a dark-mode editor. (321615@main) (186543233)
  • Fixed drag-selecting text that starts inside a position: fixed element so that the page autoscrolls when the pointer moves past the edge of the window. (322310@main) (188330363)
  • Fixed an issue where converting a bulleted list to a numbered list left a stray type attribute on the resulting <ol>. (322170@main) (188445470)

Forms

Resolved Issues

  • Fixed ::picker-icon on <select> elements to draw the dropdown arrow as a built-in glyph instead of a text character positioned with a negative margin, so authors no longer need to reset margins when styling it. (321110@main) (185952359)
  • Fixed setting valueAsNumber to throw a TypeError for infinite values and to clear the value when set to NaN, instead of throwing a NotSupportedError for both. (321668@main) (188047421)
  • Fixed missing icons in search fields, including the magnifying glass in <input type="search"> and the filter field icons in Web Inspector. (322219@main) (188297101)

HTML

Resolved Issues

  • Fixed an iframe whose src changed before its first load committed being missing from the back/forward list, which could show the wrong frame content after navigating back. (321768@main) (149977268)
  • Fixed navigating a subframe that still shows its initial about:blank document to replace the history entry instead of adding a new one, so the back button works as expected. (321285@main) (187298226)
  • Fixed changes to the scrolling attribute on an <iframe> not taking effect immediately when overlay scrollbars are in use. (321994@main) (188326221)

Images

Resolved Issues

  • Fixed top-level image viewer to support dark-mode. (322117@main) (97965029)
  • Fixed a broken <img> with an empty alt attribute to have no natural size or aspect ratio, so block-level images no longer show a broken-image icon. (321251@main) (155149701)
  • Fixed the bitmap image naturalWidth and naturalHeight to return the image metadata size rather than the decoded size; this fixed layout of the image for different sizes. (322220@main) (172477431)
  • Fixed image-rendering not applying to generated images, such as cross-fade(), used in the CSS content property. (322533@main) (189024049)
  • Fixed the bitmap image naturalWidth and naturalHeight to return the density-corrected natural rather than the layout size which can be affected the style such as image-orientation. (322534@main) (189024238)

JavaScript

Resolved Issues

  • Fixed BigInt("-") and BigInt("0x ") to throw a SyntaxError. (321129@main) (187423917)
  • Fixed an issue where optimized code could read a stale value of a module variable after an import cycle. (321135@main) (187432418)
  • Fixed spreading or applying a strict mode arguments object truncating its length to 32 bits. (321213@main) (187527803)
  • Fixed stack trace capture to read Error.stackTraceLimit from the Error constructor. (321296@main) (187633441)
  • Fixed named backreferences (\k<name>) inside regular expression lookbehinds incorrectly matching the empty string in some cases. (321355@main) (187741552)
  • Fixed RegExp.prototype.test() skipping the observable read of lastIndex for some anchored regular expressions. (321363@main) (187754780)
  • Fixed ArrayBuffer.prototype.slice() to correctly look up Symbol.species on the constructor, including for ArrayBuffer objects from other realms. (321451@main) (187853060)
  • Fixed Intl.DateTimeFormat.prototype.resolvedOptions() reporting a dayPeriod value for 12-hour formats that was never requested, which caused formatters recreated from those options to output text like “in the morning” instead of “AM”. (321443@main) (187860472)
  • Fixed Intl.Segmenter containing() returning a segment that also included the preceding segment when the index was at a boundary before a surrogate pair, such as an emoji. (322218@main) (187863002)
  • Fixed Intl.DurationFormat dropping zero minutes and seconds that follow a numeric unit. (321755@main) (188252937)
  • Fixed Promise.prototype.then(), catch(), finally(), Promise.resolve(), and Promise.reject() creating promises and errors in the wrong realm when used with a Promise from another realm, such as an iframe. (321864@main) (188345846)
  • Fixed (a?.b)(x) skipping the call and returning undefined when a is null or undefined, instead of evaluating the arguments and throwing a TypeError. (321867@main) (188347937)
  • Fixed Intl.DurationFormat dropping a fractional value folded into a zero unit, so formatting { milliseconds: 500 } with milliseconds: "numeric" returns 0.5 sec instead of an empty string. (321878@main) (188362824)
  • Fixed Intl.DurationFormat dropping the minus sign for fractional values between -1 and 0. (321988@main) (188478180)
  • Fixed String.prototype and RegExp.prototype methods such as match(), replace(), split(), and test() incorrectly running with the caller’s realm when used with a RegExp or function from another realm. (321990@main) (188478512)
  • Fixed tagged templates with a parenthesized optional chain as the tag to keep the correct this value. (322141@main) (188677696)
  • Fixed tagged templates that use a super property as the tag so the tag function is called with the current this value. (322253@main) (188790013)
  • Fixed TypedArray constructors creating an empty array when passed a Proxy that wraps an array-like object. (322260@main) (188794129)
  • Fixed the ArrayBuffer constructor to throw a RangeError for an invalid length before reading the prototype of newTarget. (322281@main) (188822488)
  • Fixed the Array constructor to read the prototype of newTarget before throwing a RangeError for an invalid length. (322282@main) (188822747)

Media

New Features

  • Added support for the transfer option in WebCodecs EncodedAudioChunk, EncodedVideoChunk, AudioData, VideoFrame, and ImageDecoder constructors, allowing ownership of ArrayBuffer data to be transferred instead of copied. (321548@main) (187834056)
  • Added support for the hevc option in VideoEncoder configurations so that WebCodecs can produce HEVC video in Annex B format. (322385@main) (188387670)

Resolved Issues

  • Fixed paused media with audio in a hidden page being able to start playing again without a user gesture. (322266@main) (169468617)
  • Fixed video disappearing while audio continued after returning from Picture-in-Picture to element fullscreen and then exiting to inline on iOS. (321751@main) (181656299)
  • Fixed an issue where text tracks whose mode was set with JavaScript could be overridden by automatic caption selection, preventing multiple text tracks from showing at the same time. (321838@main) (183472153)
  • Fixed an issue where media range responses could drop the last byte of a requested range. (321101@main) (187225949)
  • Fixed a mirrored VideoFrame being flipped vertically instead of horizontally when its rotation is applied. (321697@main) (187300986)
  • Fixed an issue where the play() promise never resolved and the playing event never fired for Media Source Extensions content mixing clear and encrypted media when the decryption key was already available. (321495@main) (187850389)
  • Fixed WebCodecs VideoEncoder and VideoDecoder hanging on flush() when the underlying codec buffers more than four frames. (321682@main) (188165426)
  • Fixed incorrect colors in 8-bit 4:2:2 VP9 video decoded in software, where the chroma channels were swapped and caused a visible color cast. (322477@main) (188857520)
  • Fixed the software VP9 decoder used by WebCodecs and media playback to report a decode error instead of silently dropping 4:4:4 frames or producing corrupted 12-bit frames. (322513@main) (188868857)

Networking

Resolved Issues

  • Fixed cookies with non-ASCII characters set using document.cookie or cookieStore.set() getting truncated, and changed reading them to decode as UTF-8 to match other browsers. (322447@main) (124266311)
  • Fixed resources from app-registered custom URL schemes failing to load because of stricter cross-origin checks. (321782@main) (182251092)
  • Fixed a regression on iOS where Apple Wallet passes delivered through a data: URL navigation did not open in Wallet. (322096@main) (184582548)
  • Fixed an issue where a speculation rules prefetch that hit a cross-origin redirect also cancelled a real navigation to the same URL. (321796@main) (187701208)
  • Fixed an issue where a failed speculative prefetch could break the actual navigation, sometimes prompting users to download the page instead of displaying it. (322091@main) (188119964)
  • Fixed structured header field parsing rejecting the entire header when a dictionary or parameter key begins with *. (321835@main) (188260300)
  • Fixed cross-origin stylesheets loaded without CORS never being reused from the parsed stylesheet cache, improving page load performance. (322418@main) (188872969)

PDF

Resolved Issues

  • Fixed the context menu for selected text in PDFs on macOS not offering the Translate option. (322064@main) (186553741)

Performance

Resolved Issues

  • Fixed unnecessary style resolution for ::before and ::after rules that cannot generate content, such as box-sizing resets, improving performance. (322517@main) (186807298)
  • Fixed synthetically bolded text always using the slower text measurement path. (321394@main) (187588326)
  • Fixed a regression where items with a percentage flex-basis inside deeply nested column flex containers could make layout time grow exponentially and freeze the page. (321866@main) (187727635)

Rendering

New Features

  • Added live pinch-to-zoom on macOS, so content stays sharp during the gesture and fixed and sticky elements follow the zoom. (322535@main) (106728296)

Resolved Issues

  • Fixed synthetic bold text being measured wider than the font’s real metrics, which caused letter-spaced text to overflow and wrap and skewed ch units and tab-size. (321206@main) (55307109)
  • Fixed a retriggered overlay scrollbar expansion animation jumping instead of animating smoothly from its current progress. (321389@main) (183216907)
  • Fixed the intrinsic width of replaced elements with a percentage width and a resolvable percentage height. (321748@main) (187522214)
  • Fixed floats and inline-blocks being sized incorrectly when a child sets min-width: min-content or min-width: max-content. (321332@main) (187621931)
  • Fixed hit testing on 3D-transformed elements rotated so far that part of them is behind the viewer, where the visible portion did not receive pointer events. (321633@main) (188120032)
  • Fixed an issue where white-space: nowrap content containing spaces overflowed the line instead of wrapping to the next line. (322209@main) (188406135)
  • Fixed an issue where inline box borders were drawn closed on a fragment where the inline box continues past a line-clamp clamp point. (322345@main) (188471367)
  • Fixed unnecessary rendering and compositing work when a frame moves without resizing, improving scrolling performance on pages with fixed-position iframes. (322194@main) (188665149)

SVG

Resolved Issues

  • Fixed calling clear() on a pattern’s patternTransform.baseVal so the patternTransform attribute is ignored. (321124@main) (170518953)
  • Fixed getComputedTextLength() and the character position methods to account for lengthAdjust="spacingAndGlyphs". (321445@main) (187473448)
  • Fixed SVG angle values to serialize numbers using CSS number formatting, consistent with SVG lengths and CSS values. (321460@main) (187757273)
  • Fixed a regression where an SVG without a viewBox had zero width as a flex item. (321446@main) (187794543)
  • Fixed the transform attribute on the outermost <svg> element being ignored or applied in the wrong position. (321441@main) (187854814)
  • Fixed pointer-events values stroke, visibleStroke, visible, and all missing the stroke area of SVG shapes when stroke is none. (322143@main) (188285211)
  • Fixed paused SVG image animations restarting from the beginning instead of resuming, matching the behavior of animated bitmap images. (322303@main) (188834229)

Security

Resolved Issues

  • Fixed navigator.hardwareConcurrency returning unusual core counts to known fingerprinting scripts, which could trigger bot detection challenges, by alternating between 4 and 8 instead. (321431@main) (177211562)
  • Fixed Content Security Policy violations in workers not firing securitypolicyviolation events or notifying a ReportingObserver. (322099@main) (188368580)

Web API

Resolved Issues

  • Fixed Navigation API dispose events for entries removed by another frame’s navigation seeing stale navigation.entries(), and fixed a crash when a frame is detached during a dispose event. (321726@main) (184961466)
  • Fixed an issue where ending a worker with both a readwrite and a readonly IndexedDB transaction in flight could leave that database permanently unable to run any transaction. (321564@main) (187349025)
  • Fixed window.outerWidth and window.outerHeight returning 0 in some apps that embed WebKit. (321417@main) (187603389)
  • Fixed pagehide, visibilitychange, and unload event handlers having no effect, such as beacons and messages never arriving, when navigating to a cross-site page that loads in a different process. (321626@main) (188113419)
  • Fixed memory growth when reading Blob data, such as with Blob.arrayBuffer() or FileReader, by no longer storing completed reads in the memory cache. (321948@main) (188322145)
  • Fixed an issue where calling preventDefault() in a navigate event handler did not cancel a cross-site navigation.navigate(). (322591@main) (188636761)
  • Fixed Largest Contentful Paint to use an image’s natural dimensions when computing its effective visual area, so SVG images with only one natural dimension are no longer reported as candidates. (322624@main) (189112402)

Web Extensions

Resolved Issues

  • Fixed webRequest events not firing for subframes loaded inside an extension’s action popup. (321290@main) (167403221)
  • Fixed an issue where a web extension’s background service worker could handle messages before it finished registering after being reloaded, causing checks for existing offscreen documents to fail. (321556@main) (186304610)
  • Fixed webRequest event listeners filtered by types so that main_frame and sub_frame match top-level and iframe loads respectively instead of being swapped. (321074@main) (187214709)
  • Fixed webRequest events reporting the wrong parentFrameId for subframes whose parent is the main frame, which now correctly report 0. (321079@main) (187227773)
  • Fixed an issue where HTTP and HTTPS iframes loaded inside a web extension page incorrectly received the extension’s Content Security Policy. (322449@main) (188407446)
  • Fixed an issue where an extension offscreen document calling window.close() did not close the document. (321974@main) (188408957)

Web Inspector

Resolved Issues

  • Fixed very large values, such as border-radius: calc(infinity * 1px), overflowing the box model diagram. (322462@main) (174246956)
  • Fixed a regression where the Sources tab showed no scripts when inspecting an older remote target. (322286@main) (187134944)
  • Fixed JavaScript breakpoints showing an incorrect resolved state on pages with multiple frames when one frame navigates or reloads. (322410@main) (187726262)
  • Fixed exported Timeline recordings losing the DOM node associated with layout and rendering events when imported again. (321679@main) (188164899)

WebAssembly

New Features

  • Added support for WebAssembly wide arithmetic, which adds instructions for 128-bit integer addition and subtraction and for multiplying two 64-bit integers into a 128-bit result. (321926@main) (188342106)

Resolved Issues

  • Fixed an inefficiency in the WebAssembly in-place interpreter by making its instruction handlers smaller, improving performance by about 5% on Apple silicon. (321217@main) (187291986)
  • Fixed redundant work when compiling WebAssembly code that uses garbage-collected structs and arrays, improving compile times. (322019@main) (188134232)

WebDriver

New Features

  • Added initial support for the WebDriver BiDi browsingContext.captureScreenshot command, which captures the page viewport as a PNG. (321353@main) (145987196)

Resolved Issues

  • Fixed WebDriver key actions so that the Insert, Pause, and Cancel keys report the correct DOM key and code values, and so that keypad keys on iOS report Numpad* codes and the numpad key location. (322405@main) (187036197)
  • Fixed WebDriver to queue classic commands for a session so they run one at a time, preventing hangs when commands overlap. (322485@main) (187215746)
  • Fixed an issue where a WebDriver command waiting for navigation to complete could hang indefinitely when another command on the same page also started waiting, by returning an error for the replaced command. (321165@main) (187217320)
  • Fixed returning a stale element from a script to report a “stale element reference” error instead of “no such element”. (322221@main) (187510557)

WebGL

Resolved Issues

  • Fixed a regression where WebGL texImage2D() and texSubImage2D() uploads from image sources handled premultiplied alpha incorrectly. (321143@main) (187093618)

WebGPU

Resolved Issues

  • Fixed copyExternalImageToTexture() to preserve alpha values instead of passing lossy premultiplied data, which caused some textures with transparency to render incorrectly. (321601@main) (142087137)
  • Fixed createComputePipelineAsync() and createRenderPipelineAsync() never settling when the device was lost or destroyed. (321466@main) (187846864)
  • Fixed fragment shaders that discard before loops writing NaN values to the render target on some Apple silicon GPUs. (321870@main) (187997601)
  • Fixed WebGPU content permanently dropping to a fraction of the display refresh rate after a few slow frames. (322439@main) (188257377)
  • Fixed an issue where render pipelines created from an already-used GPUShaderModule always missed the shader cache, making repeated pipeline creation as slow as a cold compile. (321998@main) (188501171)
  • Fixed an issue where reusing a render bundle with executeBundles() lost the bind group dynamic offsets after the first execution. (322002@main) (188524116)
  • Fixed setBindGroup() on render pass encoders doing redundant sampler registration work. (322005@main) (188530801)

WebRTC

Resolved Issues

  • Fixed H.265 video encoded or decoded through WebRTC and WebCodecs always being tagged as BT.709 limited range instead of preserving its actual color space. (321788@main) (187787801)
  • Fixed full-range color handling for H.264 video in WebRTC and WebCodecs by decoding it with WebKit’s own VideoToolbox decoder. (322034@main) (188171149)
  • Fixed H.264 video encoding and decoding to preserve the video’s color space, and fixed frames from a canvas to use the sRGB color space when encoded. (322056@main) (188373969)