Today, Apple released the Safari Technology Preview 164 update and the latest update fixes some bugs and improves performance. You can check the complete release notes which are mentioned below.
The latest Safari Technology Preview 164 fixes some bugs and improves performance for Web Inspector, CSS, Rendering, Web Animations, SVG, Media, JavaScript, WebAssembly, Service Workers, Accessibility, Editing, and Web API.
Apple Safari Technology Preview 164 Release Notes Check Here
Apple Safari Technology Preview 163 Release Notes Check Here
Apple Safari Technology Preview 162 Release Notes Check Here
Apple Safari Technology Preview 161 Release Notes Check Here
Apple Safari Technology Preview 160 Release Notes Check Here
Apple Safari Technology Preview 159 Release Notes Check Here
WebAssembly
- Fixed error message for local.get (256176@main)
JavaScript
- Changed to allow variables with the same name as the class in its static block (256311@main)
Rendering
- Fixed floating boxes overlapping their margin boxes (256183@main)
- Fixed rendering artifacts when presenting a fullscreen video (256251@main)
Apple Safari Technology Preview 158 Release Notes Check Here
Apple Safari Technology Preview 157 Release Notes
Web Inspector
- Elements Tab
- Added support for event breakpoints to be case-insensitive and regular expression matching (255196@main)
- Fixed disabling inline breakpoints unexpectedly removing them (255292@main)
- Fixed inline breakpoints appearing for minified resources before they are pretty-printed (255200@main)
CSS
- Added support for @font-feature-settings and function values of font-variant-alternates (256002@main, 255677@main)
- Added support for font-synthesis longhand properties (255171@main)
- Added support for last baseline alignment for CSS Grid (255455@main)
- Added support for last baseline alignment for Flexbox containers (255383@main)
- Added support for lh and rlh units (255540@main)
- Added margin when comptuing the baseline position for tables (255357@main)
- Changed outline to follow border-radius (255314@main, 255300@main)
- Changed to treat rem and rlh as absolute units for font size (255594@main)
- Changed to allow the font-variant-east-asian shorthand property in any position (255134@main)
- Changed to only preserve a scroll snap target if there are targets for both axes (255493@main)
- Changed CSS Keyframe name handling to not allow CSS-wide keywords (255640@main)
- Changed to use min-intrinsic size to compute min-content size for non-replaced flex items (255858@main)
- Fixed the display property value of a computed style to be “none” instead of “inline” for an <audio> element without controls (255528@main)
- Fixed font-style: oblique to allow angles equal to 90deg or -90deg (255875@main)
- Fixed font-weight to be clamped to 1 as a minimum (255873@main)
- Fixed the left-aligned contentEditable caret instead of centered when the :before pseudo-element is used (255333@main)
- Fixed CSS 3D transform by matrix3d() with translations to take page zoom into account (255416@main)
- Unprefixed font-size: -webkit-xxx-large (255602@main)
- Updated @font-palette-values override-colors order (255604@main)
Rendering
- Fixed flickering while scrolling when the keyboard scrolling spring damping animation doesn’t finish (255306@main, 255099@main)
JavaScript
- Added support for class static initialization blocks (255173@main)
- Changed the default style of Intl.DurationFormat from “digital” to “short” (255255@main)
- Fixed Intl.NumberFormat ignoring maximumFractionDigits with compact notation for currency and decimal (255691@main)
- Improved Object.entries runtime function performance (255470@main)
- Updated useGrouping handling for Intl.NumberFormat (255275@main)
WebCodecs
- Added support for WebCodecs encoder bitrate related parameters (255476@main)
- Added support for WebCodecs video encoder flush (255785@main)
- Added support for WebCodecs Validate VideoFrameInit algorithm (255786@main)
- Added support for WebCodecs VideoFrame allocationSize (255313@main)
- Added support for WebCodecsVideoEncoder (255316@main, 255262@main)
- Added support for WebCodecsVideoDecoder (255215@main, 255138@main)
- Added support for WebCodecs VideoFrame copyTo (255429@main)
- Added support for WebCodecsVideoDecoder with VPx backend (255138@main)
- Added support for AVC H.264 WebCodecsVideoEncoder and WebCodecsVideoDecoder (255430@main, 255422@main)
- Added support for GPU-based WebCodecsVideoDecoder flush (255388@main)
- Added cropping support to WebCodecsVideoFrame copyTo (255716@main)
- Added initial implementation to VideoFrame (255259@main)
- Added support for RGBX and BGRX pixel formats (255390@main)
- Added WebCodecs VideoFrame support for createImageBitmap (255776@main)
- Ensured VPx WebCodecs encoders and decoders are created asynchronously (255478@main)
- Ensured the bitrate and framerate are set for VPx encoders (255666@main)
- Fixed canvas to be able to draw a WebCodecsVideoFrame (255720@main)
- Validated width, height, x and y for I420 and NV12 video frames (255489@main)
Web API
- Added support for CSSNumericValue.toSum() (255679@main)
- Added support for CSSNumericValue.parse() (255791@main)
- Added support for CSSTransformValue.toMatrix (255299@main)
- Added support for EXT_provoking_vertex draft extension (255261@main)
- Added support for the Sec-Fetch-Site header (255810@main)
- Added support for cancel event support on <input type=file> (255394@main)
- Added support for referrerpolicy in link headers (255354@main)
- Added a log channel for IntersectionObserver (255197@main)
- Added the class FilterTargetSwitcher (255802@main)
- Changed to fire an error event when CSP blocks inline stylesheets (255744@main)
- Changed to fire an error event when link preload fails synchronously (255740@main)
- Fixed CSSPerspective.toMatrix() to throw an exception if its length is not compatible with a px unit (255876@main)
- Fixed CSSTransformComponent.toMatrix() to flatten to two-dimenions if necessary (255290@main)
- Fixed headers iteration to not happen on the cached headers list (255639@main)
- Made onpointerlockchange and onpointerlockerror enumerable (255153@main)
- Updated ResizeObserver and IntersectionObserver timing to match other browsers (255132@main)
Media
- Accept image/jpg for compatibility (255268@main)
- Changed to enforce Low Power Mode and Optimize Video Streaming setting by tone mapping HDR video to SDR (255127@main)
- Changed aspect-ratio to use lengths computed from presentational hints before the video loads (255743@main)
- Changed to switch to an alternate <source> element for AirPlay when necessary (255624@main)
- Fixed the display able to go to sleep when the camera is on (255636@main)
Web Animations
- Fixed Animation.commitStyles() triggering a mutation even when the styles are unchanged (255129@main)
- Fixed updating timing to invalidate the effect (255863@main)
- Updated to account for iterationComposite when blending (255834@main)
HTML
- Added the display of a thumbnail of selected file for <input type=file> on macOS (255355@main)
Accessibility
- Fixed accessibility for the <meter> and <progress> elements when -webkit-appearance: none or appearance: none is set (255836@main)
- Fixed accessibility to not limit navigation when focus is explicitly moved outside of a modal (255665@main)
- Fixed a bug causing VoiceOver to double-read list markers and not output braille for list items (255276@main)
Security
- Fixed Cross-Origin-Embedder-Policy incorrectly blocking scripts on a cache hit (255302@main)
Privacy
- Capped cookie lifetimes to 7 days for responses from third-party IP addresses (255849@main)
- Omitted document.referrer for third-party requests while in ephemeral mode (255649@main)
Safari Web Extensions
- Added support for the modifyHeaders action type in Declarative Net Request rules
- Fixed Declarative Net Request rules not loading after an extension was turned off and then back on
Apple Safari Technology Preview 154 Release Notes
Web Inspector
- Sources Tab
- Added support for inline breakpoints (254015@main, 254052@main, 254057@main, 254309@main)
- Enhanced symbolic breakpoints to also pause for native functions (253999@main)
- Elements Tab
- Added “Scroll” labels in the element tree for scrollable elements (254061@main)
- Added warnings in the Font details sidebar for synthesized boldness or obliqueness (254188@main)
- Fixed DOM Tree to update when a top-level item in the DOM tree is added or removed (254062@main)
- Prevented showing the Target in the Event badge popover (254018@main)
- Timelines Tab
- Fixed selecting timeline records from a coalesced record bar selecting the first record in the group, not the record nearest the cursor. (254056@main)
- Settings
- Added a setting to control whether nodes that are not rendered are de-emphasized (254022@main)
CSS
- Enabled :dir by default (254051@main, 254106@main, 253878@main, 253881@main, 253896@main)
- Implemented overflow: clip for SVG elements (254295@main)
- Implemented :has(~:dir(~)) (254017@main)
- Fixed parsing of list-style CSS property shorthand (254282@main)
- Fixed a bug that a disconnected subtree with lang content attribute will never match :lang pseudo class (253915@main)
- Stopped inheriting text-decoration-thickness CSS property (254010@main)
JavaScript
- Fixed ShadowRealm test262 failures (253977@main)
- Finished to and from methods for Temporal.PlainDate[Time] (Behind the –useTemporal flag) (253876@main)
- Optimized Proxy [[Get]] operations (254092@main)
- Optimized String#replace(String, String) (254156@main)
- Optimizde String#replace with constant String via Boyer-Moore-Horspool search algorithm (254342@main)
Rendering
- Fixed incorrect bidi visual direction after forced line break (253872@main)
- Fixed <div> with border-radius not getting repainted correctly when the bounds change (254041@main)
- Fixed border-radius clipping of composited layers (254253@main)
- Fixed updating transforms on table sections (254351@main)
Reporting API
- Added support for generateTestReport in WebDriver (254122@main)
- Hooked up to Content-Security-Policy ‘report-to’ directive (253966@main)
- Refactored network send logic for Report-related code (254208@main)
Web API
- Added support for COOP navigation violation reporting (254291@main)
- Added support for ElementInternals.role, ariaLabel, and ariaRoleDescription (254278@main)
- Added support for PermissionStatus.onchange (254193@main)
- Added support for InputEvent.isComposing (254131@main)
- Added ReferrerPolicy to the PolicyContainer (254003@main)
- Added generation of IndexedDB object serializers (254196@main)
- Enabled Scroll To Text Fragment by default (253855@main)
- Enabled SKAttributionEnabled by default (254328@main)
- Changed to not parse or scroll to text fragments in iframe URLs (254073@main)
- Fixed memory usage scaling for Compression Streams to handle out-of-memory conditions (253930@main)
- Fixed deleting a button element leaving the style inside the button element (254285@main)
- Fixed matching fancy quotes and apostrophes for Scroll To Text Fragment fragments (254275@main)
- Fixed link elements to be able to fire more than one load or error event (254290@main)
- Fixed String.prototype.includes incorrectly returning false when the string is empty and the position is past end of string (254319@main)
- Fixed opening the share sheet to not clear the text selection (254136@main)
- Fixed <canvas> ConicGradient angle to start at the x-axis, not at the top (254038@main)
- Fixed X-Frame-Options HTTP headers with an empty value being incorrectly ignored (254245@main)
- Stopped painting a border for images with loading=”lazy” before it loaded (253960@main)
Accessibility
- Implemented WebVTT-based audio descriptions with text-to-speech (253931@main, 254266@main)
- Implemented the ARIA 1.3 mark role, which provides parity with the <mark> tag (254008@main)
Media
- Fixed AudioWorklet scripts to inherit their owner document’s referrer policy (254306@main)
- Fixed canPlayType for WebM VP8 on older Macs without VP9 (254013@main)
- Fixed WebM files that fail to play (254219@main)
- Fixed WebVTT styles not getting applied with in-band tracks (254109@main)
Intelligent Tracking Prevention
- Updated to wait longer before deleting website data for domains where a user interacted with a Web Push notification (254048@main)