# Safari Technology Preview 26 Release Notes Preview the latest web technology updates including: WebGPU, Web API, CSS, Rendering, Web Inspector, WebDriver, and WebCrypto. ## Overview [Safari Technology Preview](https://webkit.org/blog/6017/introducing-safari-technology-preview/) Release 26 is now [available for download](https://webkit.org/downloads/) for macOS Sierra. If you already have Safari Technology Preview installed, you can update from the Mac App Store’s Updates tab. This release covers WebKit revisions [213542-213822](https://trac.webkit.org/log?stop_rev=213542&rev=213822&limit=280). ### WebGPU - Added WebGPU prototype in the Experimental Features menu ([r213780](https://trac.webkit.org/changeset/213780), [r213783](https://trac.webkit.org/changeset/213783), [r213786](https://trac.webkit.org/changeset/213786)) ### Web API - Added support for `history.scrollRestoration` ([r213590](https://trac.webkit.org/changeset/213590)) - Aligned `Document.elementFromPoint()` with the CSSOM specification ([r213646](https://trac.webkit.org/changeset/213646)) - Changed the parameter to input.setCustomValidity() to not be nullable ([r213606](https://trac.webkit.org/changeset/213606)) - Fixed transitions and animations of background-position with right-relative and bottom-relative values ([r213603](https://trac.webkit.org/changeset/213603)) - Fixed an issue where WebSQL directories were not removed when removing website data ([r213547](https://trac.webkit.org/changeset/213547)) - Made the `XMLHttpRequest` method `setRequestHeader()` use “`, `” (including a space) as the separator ([r213766](https://trac.webkit.org/changeset/213766)) - Prevented displaying the label of an `` element in quirks mode ([r213542](https://trac.webkit.org/changeset/213542)) - Prevented extra downloads of preloaded CSS ([r213672](https://trac.webkit.org/changeset/213672)) - Dropped support for non-standard `document.all.tags()` ([r213619](https://trac.webkit.org/changeset/213619)) ### CSS - Implemented `stroke-width` CSS property ([r213634](https://trac.webkit.org/changeset/213634)) ### Rendering - Enabled asynchronous image decoding for large images ([r213764](https://trac.webkit.org/changeset/213764), [r213563](https://trac.webkit.org/changeset/213563)) - Fixed memory estimate for layers supporting subpixel-antialised text ([r213767](https://trac.webkit.org/changeset/213767)) - Fixed columns getting clipped horizontally in CSS Multicolumn ([r213593](https://trac.webkit.org/changeset/213593)) ### Web Inspector - Added DOM breakpoints for pausing on node and subtree modifications ([r213626](https://trac.webkit.org/changeset/213626)) - Added XHR breakpoints for pausing on requests by URL ([r213691](https://trac.webkit.org/changeset/213691)) - Added a “Create Breakpoint” context menu item for linked source locations ([r213617](https://trac.webkit.org/changeset/213617)) - Added settings for controlling Styles sidebar intelligence ([r213635](https://trac.webkit.org/changeset/213635)) - Added cache source information (Memory Cache or Disk Cache) in the Network tab ([r213621](https://trac.webkit.org/changeset/213621)) - Added protocol, remote address, priority, and connection ID in the Network tab ([r213682](https://trac.webkit.org/changeset/213682)) - Added individual messages to the content pane for a WebSocket ([r213666](https://trac.webkit.org/changeset/213666)) - Fixed an issue where the DOM tree is broken if an element has a `debounce` attribute ([r213565](https://trac.webkit.org/changeset/213565)) - Fixed an issue in the Resources tab navigation bar allowing the same file from a contextual menu item to be saved more than once ([r213738](https://trac.webkit.org/changeset/213738)) - Improved the layout of the compositing reasons in the Layers sidebar popover ([r213739](https://trac.webkit.org/changeset/213739)) ### WebDriver - Fixed an issue where automation commands hang making it impossible to navigate back or forward ([r213790](https://trac.webkit.org/changeset/213790)) ### WebCrypto - Implemented ECDH `ImportKey` and `ExportKey` operations ([r213560](https://trac.webkit.org/changeset/213560)) --- 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)