Safari Technology Preview 158 launches with bug fixes and performance improvements

Stage Manager running Safari on a MacBook Air
Stage Manager running Safari on a MacBook Air (Image credit: iMore/Joe Wituschek)

The latest version of Safari Technology Preview is here for anyone who wants to mess around with some of its latest experimental features.

Today, Apple released Safari Technology Preview 158. The latest version doesn't include any major features that end-users will notice but does include a number of notable updates for the underlying technology that powers the browser.

The latest version of Safari Technology Preview is an experimental version of Safari for users running a Mac that currently have the beta of macOS Ventura or macOS Monterey installed. The preview allows developers and the generally curious to test out the latest and greatest features of Apple's browser and provide feedback to the company before the public version goes live for everyone else.

What's new with Safari Technology Preview 158?

Apple has laid out in the release notes of Safari Technology Preview 158 that it has released a number of updates:

  • Web Inspector
  • CSS
  • JavaScript
  • Rendering
  • Media
  • WebCodecs
  • Web API

The company has noted that some features like Shared Tab Groups, syncing for Tab Groups, Website Settings, and Web Extensions do not work with this version of the browser. Other than that, the updates are more for developers than the regular Safari user.

If you want, you can download (opens in new tab) Safari Technology Preview and test it out for yourself. You can check out the release notes (opens in new tab) of Safari Technology Preview 158 on the Apple Developer website. It's currently unclear when the features in Safari Technology Preview 158 will make it to the general public.

If you want to try it on the latest software, you can try out macOS Ventura as a developer or public user as well through Apple's beta programs.

The release of Safari Technology Preview 158 comes on the same day that Apple has rolled out a number of public and beta releases across iOS, iPadOS, tvOS, and more. The company also rolled out a security patch to the latest developer beta for iOS 16.2.

Joe Wituschek
Contributor

Joe Wituschek is a Contributor at iMore. With over ten years in the technology industry, one of them being at Apple, Joe now covers the company for the website. In addition to covering breaking news, Joe also writes editorials and reviews for a range of products. He fell in love with Apple products when he got an iPod nano for Christmas almost twenty years ago. Despite being considered a "heavy" user, he has always preferred the consumer-focused products like the MacBook Air, iPad mini, and iPhone 13 mini. He will fight to the death to keep a mini iPhone in the lineup. In his free time, Joe enjoys video games, movies, photography, running, and basically everything outdoors.