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# Safari Technology Preview 54 Release Notes

Preview the latest web technology updates including: Clipboard API, Beacon API, Web API, WebRTC, and Web Inspector.

## Overview

[Safari Technology Preview](https://webkit.org/blog/6017/introducing-safari-technology-preview/) Release 54 is now [available for download](https://webkit.org/downloads/) 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](https://trac.webkit.org/log?stop_rev=230029&rev=230521&limit=999).

### Clipboard API

- Fixed copying a list from Microsoft Word to TinyMCE when `mso-list` is the first property ([r230120](https://trac.webkit.org/changeset/230120/webkit/))
- Prioritized file promises over filenames during drag and drop ([r230221](https://trac.webkit.org/changeset/230221/webkit/))

### Beacon API

- Fixed Beacon redirect responses to be CORS validated ([r230495](https://trac.webkit.org/changeset/230495/webkit/))

### Web API

- Implemented `createImageBitmap(Blob)` ([r230350](https://trac.webkit.org/changeset/230350/webkit/))

### WebRTC

- Added a special software encoder mode when a compression session is not using a hardware encoder and VCP is not active ([r230451](https://trac.webkit.org/changeset/230451/webkit/))
- Added experimental support for MDNS ICE candidates in WebRTC data channel peer-to-peer connections ([r230290](https://trac.webkit.org/changeset/230290/webkit/), [r230307](https://trac.webkit.org/changeset/230307/webkit/))

### Web Inspector

- Fixed the errors glyph to fully change to blue when active ([r230372](https://trac.webkit.org/changeset/230372/webkit/))
- Tinted all pixels drawn by a shader program when hovering over a tree element in the Canvas Tab ([r230127](https://trac.webkit.org/changeset/230127/webkit/))

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