--- title: Safari Technology Preview 207 Release Notes framework: safari-technology-preview-release-notes role: article role_heading: Article path: safari-technology-preview-release-notes/stp-release-207 --- # Safari Technology Preview 207 Release Notes Learn about the latest web technology updates in Safari Technology Preview: CSS, Forms, JavaScript, Loading, Networking, Rendering, Scrolling, Web Extensions, and Web Inspector. ## Overview Overview Safari Technology Preview Release 207 is now available for download for macOS Sequoia and macOS Sonoma. 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: 284744@main…285486@main. CSS Resolved Issues Fixed: Updated the shape() function to match the proposed syntax. (285442@main) (138126105) Forms New Features Added enhancements to to support alpha and colorspace attributes. (285448@main) (137737348) JavaScript New Features Added support for Atomics.pause. (284917@main) (137571229) Resolved Issues Fixed: Stopped using resolved scope as this value when calling functions. (284931@main) (77915872) Fixed Set.prototype methods to invoke keys() without arguments. (284747@main) (137395979) Fixed Array.from(), Array.fromAsync(), and TypedArray.from() to invoke document.all passed as a mapper. (284868@main) (137490201) Fixed Intl.DurationFormat to have a value limit to match the specification. (285131@main) (137885273) Fixed a rounding error for Intl.DurationFormat. (285482@main) (138261569) Loading New Features Added noopener-allow-popups support in Cross-Origin-Opener-Policy. (284866@main) (129664445) Networking New Features Added Brotli support for Compression Streams. (285391@main) (99159497) Rendering Resolved Issues Fixed scriptlevel multipler for font-size in MathML. (285069@main) (137671252) Fixed a flex container with no flex item to not run flex layout. (285129@main) (137884128) Scrolling Resolved Issues Fixed changes to the “scrolling” attribute on an iframe element already in the DOM to take effect. (284947@main) (98911472) Web Extensions New Features Added support for documentId to the sender message object. (284855@main) (137532821) Added support for documentId to tabs.sendMessage() and tabs.connect(). (285438@main) (137532897) Resolved Issues Fixed tabs.executeScript ignoring the frameId parameter. (284915@main) (137449521) (FB15420092) Web Inspector Resolved Issues Fixed: Changed the label to use “Disable site-specific quirks” in settings. (285136@main) (137779118) ## See Also ### 2024 - [Safari Technology Preview 210 Release Notes](safari-technology-preview-release-notes/stp-release-210.md) - [Safari Technology Preview 209 Release Notes](safari-technology-preview-release-notes/stp-release-209.md) - [Safari Technology Preview 208 Release Notes](safari-technology-preview-release-notes/stp-release-208.md) - [Safari Technology Preview 206 Release Notes](safari-technology-preview-release-notes/stp-release-206.md) - [Safari Technology Preview 205 Release Notes](safari-technology-preview-release-notes/stp-release-205.md) - [Safari Technology Preview 204 Release Notes](safari-technology-preview-release-notes/stp-release-204.md) - [Safari Technology Preview 203 Release Notes](safari-technology-preview-release-notes/stp-release-203.md) - [Safari Technology Preview 202 Release Notes](safari-technology-preview-release-notes/stp-release-202.md) - [Safari Technology Preview 201 Release Notes](safari-technology-preview-release-notes/stp-release-201.md) - [Safari Technology Preview 200 Release Notes](safari-technology-preview-release-notes/stp-release-200.md) - [Safari Technology Preview 199 Release Notes](safari-technology-preview-release-notes/stp-release-199.md) - [Safari Technology Preview 198 Release Notes](safari-technology-preview-release-notes/stp-release-198.md) - [Safari Technology Preview 197 Release Notes](safari-technology-preview-release-notes/stp-release-197.md) - [Safari Technology Preview 196 Release Notes](safari-technology-preview-release-notes/stp-release-196.md) - [Safari Technology Preview 195 Release Notes](safari-technology-preview-release-notes/stp-release-195.md)