Release Notes for Safari Technology Preview 54

Apr 18, 2018

by Jon Davis

Safari Technology Preview Release 54 is now available for download for macOS Sierra and macOS High 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 230029-230521.

Clipboard API

  • Fixed copying a list from Microsoft Word to TinyMCE when mso-list is the first property (r230120)
  • Prioritized file promises over filenames during drag and drop (r230221)

Beacon API

  • Fixed Beacon redirect responses to be CORS validated (r230495)

Web API

  • Implemented createImageBitmap(Blob) (r230350)

WebRTC

  • Added a special software encoder mode when a compression session is not using a hardware encoder and VCP is not active (r230451)
  • Added experimental support for MDNS ICE candidates in WebRTC data channel peer-to-peer connections (r230290, r230307)

Web Inspector

  • Fixed the errors glyph to fully change to blue when active (r230372)
  • Tinted all pixels drawn by a shader program when hovering over a tree element in the Canvas Tab (r230127)