# Safari 27.2 Beta Release Notes Released September 16, 2026 — 27.2 beta (20625.2.4) ## Overview Safari 27.2 beta is available for iOS 27.2 beta, iPadOS 27.2 beta, visionOS 27.2 beta, macOS 27.2 beta, macOS 26, and macOS Sequoia. ### Accessibility #### Resolved Issues - Fixed list, table, tree, and canvas content being omitted from the accessible name or description when the containing element is referenced by `aria-labelledby` or `aria-describedby`. (186015032) - Fixed VoiceOver repeating text it had already announced when a page streams content by re-rendering an `aria-live` region instead of appending to it. (186766347) ### Animations #### Resolved Issues - Fixed `animation-range-start` and `animation-range-end` resolving incorrectly when `zoom` is applied, including when the value is inherited from an element with a different zoom factor. (185760120) ### CSS #### Deprecations - Renamed the `flow-tolerance` property to `fit-tolerance` for `display: grid-lanes`, keeping `flow-tolerance` as a deprecated alias that Web Inspector now flags. (185816680) ### Forms #### New Features - Added support for `safe` and `unsafe` overflow alignment with `normal`, and for `safe` alignment on fixed position boxes so they stay in view even when that means overflowing their `position-area`. Also, applied `safe` alignment to `::picker(select)`, which keeps base appearance `` pickers fully in view. (186812035) #### Resolved Issues - Fixed: Updated the default styling for `appearance: base-select` to center-align items, use `lh` units for padding, and reset all font properties on ::picker-icon and ::checkmark. (184843832) ### HTML #### Resolved Issues - Fixed the window `load` event never being dispatched when a `readystatechange` handler starts a new load. (186475302) ### JavaScript #### Resolved Issues - Fixed `for await...of` over an async generator skipping the `Promise.prototype.constructor` lookup required by `PromiseResolve` when that property is replaced. (183960626) ### Media #### Resolved Issues - Fixed `AudioContext.decodeAudioData()` failing with an `EncodingError` for valid AAC and M4A files whose file brand is not `mp4`. (183474728) - Fixed video showing a black screen while audio continued to play after the video decoder was invalidated. (184041554) - Fixed `ManagedMediaSource` not firing the `startstreaming` event when seeking to a time that is not buffered, which could stall playback. (185166787) ### Networking #### Resolved Issues - Fixed cookies set by a top-level navigation’s own response being capped to a seven day lifetime when the site’s hostname is CNAMEd to a different registrable domain. (183787115) ### SVG #### Resolved Issues - Fixed dynamic changes to a `` element’s `x` and `y` values having no effect. (184273832) ### Safari MCP #### Resolved Issues - Fixed Safari taking keyboard focus from other apps when creating tabs or capturing screenshots under Safari MCP control. (182558329) ### Web Extensions #### Resolved Issues - Fixed a significant delay before web extension content is injected when Safari is cold launched. (185268822) ### WebGPU #### Resolved Issues - Fixed a severe frame rate drop when calling `executeBundles()` with render bundles that contain `drawIndirect()` or `drawIndexedIndirect()`. (186099290) ### WebRTC #### Resolved Issues - Fixed an issue where `getUserMedia()` requests for audio permanently failed with `NotAllowedError` after the system audio service was reset. (186939802) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)