Apple releases Safari Technology Preview 133 with improvements and fixes

Macos Big Sur Preview Safari Hero (Image credit: Rene Ritchie)

What you need to know

Apple has made Safari Technology Preview 130 available for download.
Builds are available for macOS Monterey and macOS Big Sur.

Apple has today released a new version of its Safari Technology Preview app, bringing the version number up to the heady heights of 133. This new update is available for macOS Monterey and macOS Big Sur and both versions can be downloaded from the Apple developer website.

This particular update includes fixes and changes across a whole raft of features including CSS, JavaScript, and Accessibility. Those living on the bleeding edge should note that Tab Groups are not syncing in this particular release, however.

The full release notes are available online while those looking to download the update themselves can go and do exactly that right now, too.

Get a sneak peek at upcoming web technologies in macOS and iOS with Safari Technology Preview and experiment with these technologies in your websites and extensions.

Safari is undoubtedly the best Mac web browser around, especially given Google Chrome's love of eating through any resources it can find.

Apple will be updating Safari across the board once macOS Monterey ships at some point this fall. There is no telling exactly when that will be, however, so keep your eyes peeled and we'll let you know as soon as the update is available for download to your very own Mac. Until then, those on the developer and public beta programs are the ones putting the update through its paces.

Oliver Haslam has written about Apple and the wider technology business for more than a decade with bylines on How-To Geek, PC Mag, iDownloadBlog, and many more. He has also been published in print for Macworld, including cover stories. At iMore, Oliver is involved in daily news coverage and, not being short of opinions, has been known to 'explain' those thoughts in more detail, too. Having grown up using PCs and spending far too much money on graphics card and flashy RAM, Oliver switched to the Mac with a G5 iMac and hasn't looked back. Since then he's seen the growth of the smartphone world, backed by iPhone, and new product categories come and go. Current expertise includes iOS, macOS, streaming services, and pretty much anything that has a battery or plugs into a wall. Oliver also covers mobile gaming for iMore, with Apple Arcade a particular focus. He's been gaming since the Atari 2600 days and still struggles to comprehend the fact he can play console quality titles on his pocket computer.