--- title: Safari Technology Preview 206 Release Notes framework: safari-technology-preview-release-notes role: article role_heading: Article path: safari-technology-preview-release-notes/stp-release-206 --- # Safari Technology Preview 206 Release Notes Learn about the latest web technology updates in Safari Technology Preview: CSS, Editing, JavaScript, Media, Rendering, SVG, Tables, Web Extensions,WebDriver, and WebRTC. ## Overview Overview Safari Technology Preview Release 206 is now available for download for macOS Sequoia beta 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: 284050@main…284743@main. CSS Resolved Issues Fixed: Dropped layout containment from container-type. (284730@main) (132549134) Fixed CSS nested declarations inside a @scope to behave like :where(:scope). (284635@main) (136856371) Editing New Features Implemented ClipboardItem.support() which gives the page author the ability to understand which formats are supported during Clipboard operations. It also now returns a TypeError for a new ClipboardItem() with an empty Array. (284593@main) (136008522) Resolved Issues Fixed missing SecureContext in the ClipboardItem interface. (284511@main) (137197266) JavaScript New Features Completed the Iterator Helpers proposal by implementing map(), filter(), take(), drop(), and flatMap() methods. (284597@main) (103171739) Resolved Issues Fixed Iterator.prototype.reduce() not properly forwarding the return() call to the underlying iterator. (284648@main) (137181340) Media New Features Added support for the Image Capture API. (284447@main) (136860809) Rendering Resolved Issues Fixed non-separable blend modes in mix-blend-mode to workon elements in compositing layers. (284170@main) (49387130) Fixed repeating background-image sized to the content-box failing to fill the viewport in an iframe. (284165@main) (133952319) Fixed floats not clearing in the WordPress Classic Editor sidebar layout. (284247@main) (136362683) SVG Resolved Issues Fixed: Updated getTotalLength() with the web specification to throw an exception when non-renderable and the path is empty. (284311@main) (136719548) Tables Resolved Issues Fixed Table Root to also account for fill-available in a fixed table layout. (284712@main) (137297914) Web Extensions New Features Added support for getKeys() in storage areas. (284602@main) (136595295) Added support for i18n.getSystemUILanguage and i18n.getPreferredSystemLanguages. (284637@main) (136929657) WebDriver Resolved Issues Fixed a crash that could occur when simulating drag events with the right mouse button. (284577@main) (137068514) WebRTC New Features Added support for enumerated visible network interfaces. (284687@main) (137067672) Resolved Issues Fixed MediaSession.setMicrophoneActive(true) prompting repeatedly if the microphone was muted by the user-agent once. (284399@main) (135941062) Fixed setCameraActive to not unmute microphone if the user-agent previously muted both camera and microphone. (284069@main) (136221456) Fixed AirPods unmuting to not unmute the camera if website muted the camera. (284514@main) (137065964) ## 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 207 Release Notes](safari-technology-preview-release-notes/stp-release-207.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)