Apple today released a new update for Safari Technology Preview, the experimental browser Apple first introduced more than a year ago in March of 2016. Apple designed the Safari Technology Preview to test features that may be introduced into future release versions of Safari.
Safari Technology Preview release 46 includes bug fixes and feature improvements for Security UI, Privacy, CSS, Rendering, Storage Access API, Web Inspector, Web Assembly, Web Driver, JavaScript, Media, and WebRTC. Today's update also enables Service Workers by default and makes several Service Workers tweaks and improvements.
The Safari Technology Preview update is available through the Software Update mechanism in the Mac App Store to anyone who has downloaded the browser. Full release notes for the update are available on the Safari Technology Preview website.
Apple's aim with Safari Technology Preview is to gather feedback from developers and users on its browser development process. Safari Technology Preview can run side-by-side with the existing Safari browser and while designed for developers, it does not require a developer account to download.
Top Rated Comments
Deleting all my STP caches, etc. across macOS and reinstalling STP doesn't fix it either. Always 464 with everything enabled.
Edit: The only way I get your score of 464 is if I toggle ServiceWorkers and WebGL 2.0 off.
Others have had higher scores than me on previous versions with the same features enabled, no idea why.