Safari Technology Preview: Apple releases version 166

March 24, 2023 Joe Kenehan

Apple releases the 166th version of Safari Technology Preview today. This is the experimental version of Safari to allow developers to preview what’s to come in the browser.

Availability of Safari Technology Preview 166

For this release, Apple says it focused on Web Inspector, CSS, JavaScript, Popover, Media, MSE, Web API, and Accessibility. The tab group system works with this release, as do shared tab groups, per-site tweaks, and extensions.

Developers are encouraged to read the full changes on Apple’s website. The download is done in click here for macOS Monterey and in click here for macOS Ventura. Go to System Preferences (or System Settings on macOS Ventura) > Software Update to download the new update if you have a previous version of Safari Technology Preview already installed.

Starting with version 147, Safari Technology Preview builds on Safari 16. This update includes several new features, including Live Text, better web technology support, improved push notifications, Passkeys, improved Safari web extensions, Web Inspector Extensions and Flexbox Inspector.