# Safari 18.2 Release Notes Released December 11, 2024 — 18.2 (20620.1.16) ## Overview Safari 18.2 is available for iOS 18.2, iPadOS 18.2, visionOS 2.2, macOS 15.2, macOS Sonoma, and macOS Ventura. ### Accessibility #### Resolved Issues - Fixed `text-transform: full-size-kana` to not affect speech output. (115504070) - Fixed element reflection attributes to be able to retrieve a disconnected element. (133693674) - Fixed VoiceOver focus to activate PDF form fields when it lands on them. (134522935) - Fixed tree updates becoming broken when children change for a dynamically ignored element and its unignored ancestor is in the same tree update cycle. (137876593) - Fixed handling dynamically-created and nested `aria-modal` dialogs. (137883473) - Fixed the accessibility tree to update when a text selection is cleared. (137960839) ### Browser #### New Features - Added contextual menu support for generating text fragment links. (131712706) #### Resolved Issues - Fixed windows not getting restored after updating macOS. (138413468) ### Canvas #### Resolved Issues - Fixed CanvasRenderingContext2D `globalAlpha` property getting ignored for some values of `globalCompositeOperation`. (134840885) ### CSS #### New Features - Added support for cross-document View Transitions. (133994557) - Added support for View Transition Classes. (129849286) - Added support for View Transition Types. (132051697) - Added support for `view-transition-name: auto`. (137788958) - Added support for `ruby-align`. (133656625) - Added support for `ruby-overhang`. (135058411) - Added support for unprefixed `ruby-position`. (86128259) - Added support for `text-box-edge`. (133834296) - Added support for `text-box-trim`. (133947582) - Added support for the `text-box` shorthand. (133942602) - Added support for `text-underline-position: left` and `text-underline-position: right`. (130621143) - Added support for `background-clip: border-area`. (133788384) - Added support for `scrollbar-gutter`. (111918434) - Added support for `scrollbar-width`. (133019206) - Added support for `@page` margin descriptors. (118773100) - Added support for `jis-b4` and `jis-b5` sizes for `@page`. (133138325) - Added support for `:is(:host)`. (118582384) - Added support for `closest-corner` and `farthest-corner` in circle and ellipse shapes. (132936677) - Added support for `@property` `` syntax. (133250776) - Added support for `::target-text`. (134010063) - Updated `calc()` to the most recent web standard, including support for dividing by numbers with additional units. (134446246) #### Resolved Issues - Fixed backgrounds applied to a table row repeating in every table cell. (11446455) - Fixed the `size` property of `@page` to parse as a descriptor, not a global CSS property. (92963022) - Fixed `background-clip: text` to correctly paint text decorations. (93823895) - Fixed `font-variant: small-caps normal;` to be invalid syntax. (102679841) - Fixed `-webkit-line-clamp: none` to be parsable. (103158259) - Fixed `text-underline-offset` to support percentages. (117246233) - Fixed `text-decoration-thickness` to work in buttons. (118320835) - Fixed the `lh` unit sometimes getting computed before `line-height` is resolved. (118983248) - Fixed `touch-action` to use `pan-x pan-y` order when serializing. (125349558) - Fixed serialization of `place-content`, `place-items`, and `place-self` properties. (125415088) - Fixed: Updated CSS Nesting to remove the hoisting behavior. (130094168) - Fixed: Improved scrollbar styling support for interoperability. (131515907) - Fixed contrast between `ButtonFace` and `ButtonText` system colors in dark mode. (131996608) - Fixed: Disallow matching of `:has()` in CSS Nesting. (132102543) - Fixed defaults for text underline position and text emphasis marks in CJK languages. (132444497) - Fixed attribute `initial-value` makes the `@property` rule invalid for `[var(--x)]`. (134317319) - Fixed invalidating attribute values when programmatically mutated so that page attribute selectors work as expected. (137228504) - Fixed CSS Nested declarations inside a `@scope` to behave like `:where(:scope)`. (137307934) ### Editing #### Resolved Issues - Fixed aligning with the standardized version of the `autocorrect` attribute, which does not support Email, URL, and Password fields and does not treat the empty string value in a special way. (101036922) ### Forms #### New Features - Added support for `input type=week` on iOS, iPadOS, and visionOS. (10854201) #### Resolved Issues - Fixed `HTMLSelectElement.prototype.add` with `optgroup` elements. (120553757) ### History #### Resolved Issues - Fixed using Cross-Origin-Opener-Policy HTTP header disabling the back-forward cache. (128678196) ### JavaScript #### New Features - Implemented Float16Array. (109883982) - Added support for `Uint8Array.prototype.toBase64` and `Uint8Array.prototype.toHex`. (129045737) - Added support for `Uint8Array.fromBase64` and `Uint8Array.prototype.setFromBase64`. (131509586) - Added support for `firstDayOfWeek` for `Intl.Locale` info API. (132731533) - Added support for `Promise.try` and `RegExp.escape`. (132952304) - Enabled Base64 and Hex features. (133312461) - Added support for type reflection for `WebAssembly.Module.imports` and `WebAssembly.Module.exports`. (133429946) - Added support for `Iterator.prototype.constructor` and `Iterator.prototype[@@toStringTag]`. (134598491) - Added support for `Iterator.from` from Iterator Helpers Proposal. (135065388) #### Resolved Issues - Fixed class field initializers to disallow `yield` and `await` expressions. (119044881) - Fixed DestructuringAssignmentTarget to be evaluated prior to calling `[[Get]]` or a stepping iterator. (121960976) - Fixed throwing an exception for negative exponent in BigInt in the JIT compiler. (131051084) - Fixed RegExp range quantifier to allow 2^53 - 1. (131710011) - Fixed `Uint8Array#setFromBase64` to decode and write chunks which occur prior to bad data. (132198988) - Fixed: Disallow `yield` and `await` expressions in class field initializers. (132338331) - Fixed TimeZone without Time to be rejected in ISO8601 strings. (133988956) - Fixed `Object.keys(global)` including non-enumerable properties unless deleted first. (134121649) - Fixed duration format’s nanoseconds calculation ordering. (134526619) - Fixed TimeZoneAnnotation to disallow sub-minute. (134541964) - Fixed: Improved the TypeError message when a WeakMap constructor takes an iterable that yields invalid entry. (135333331) - Fixed incorrect SyntaxError when destructuring `let`. (135353378) ### Loading #### Resolved Issues - Fixed `javascript:` URL navigation to another browsing context created from `window.open` not checking the source’s Content Security Policy. (137941234) ### Media #### New Features - Added support for viewing Spatial Photos in Safari in visionOS. (130545126) - Added a fallback image to Now Playing when a website doesn’t specify one in MediaSession metadata. (131185836) - Added support for allowing websites to override the system-default accessibility caption styling. (134265139) - Added support for Spatial Video in Safari in visionOS. (138482091) #### Resolved Issues - Fixed fullscreen error handling to include error messages. (103073510) - Fixed `audioTrack.configuration()` values for WebM files. (133545263) ### Networking #### New Features - Added support for Document render-blocking with ``. (122797243) - Added support for `NavigationActivation.finished` handling. (133220864) ### PDF #### Resolved Issues - Fixed a hang that could occur using the Select All keyboard shortcut ⌘A (Command-A) on a PDF causing all pages to be blank. (125375518) ### Rendering #### New Features - Added support for `blocking=render` attribute for `