Web API

• Changed openDatabase to return an empty object when WebSQL is disabled (r246707)
• Added an experimental behavior to prevent a 5 second delay for initial paint on pages that are using Google’s anti-flicker optimization when content blockers are enabled (r246764)

Web Sockets

• Added support for sending blob messages when using web sockets platform APIs (r246964)

Payment Request

• Changed to set state to Closed when show() is called during an active session (r246863)

Experimental Web Shading Language (WHLSL)

• Implemented arrays (r246875)

Rendering

• Fixed incorrect clipping with overflow: scroll inside overflow: hidden with border-radius (r246845)
• Fixed the preview of a <picture> element to match the element bounds (r246695)

WebGPU

• Made WebGPU enabled only on Mojave and later (r246888)

Web Inspector

• Implemented console.countReset (r246850)
• Implemented console.timeLog (r246798)
• Added additional demo audits for other WebInspectorAudit functions (r247042)
• Enable the Show Shadow DOM navigation item by default in the Elements tab (r246821)

Known Issues

• Open tabs are blank on initial launch after upgrading to Safari Technology Preview 87 and loading all tabs from the last session. To correct this behavior, reload open tabs or relaunch Safari Technology Preview.