The new Safari Technology Preview release 60 includes improvement in features and bug fixes for Web Animations, Media, CSS, Dark Mode, WebRTC, Web Inspector, Security, WebDriver, Plugins, Accessibility and Intelligent Tracking Prevention.
The new update is available for both macOS High Sierra and the new version macOS Mojave. MacOS Mojave is currently under beta test by the developers. Apple says that the release 60 of Safari Technology Preview will crash for the first version of macOS Mojave. To avoid the crashes, the users will have to upgrade the OS to the second beta. The homepage preference and the Develop menu preference will be lost for the release 60.
The Intelligent Tracking Prevention 2.0 was introduced in the previous release of Safari Technology Preview. This prevented the social widgets to track without permissions.
The release 60 is available to download to the users through the Software Update option in the Mac App Store. The Preview can run simultaneously with the existing Safari Browser and since it is designed for developers, it does not require a download of developer account to use.