Apple Releases Safari Technology Preview 142 With Bug Fixes and Performance Improvements - MacRumors
Skip to Content

Apple Releases Safari Technology Preview 142 With Bug Fixes and Performance Improvements

Apple today released a new update for Safari Technology Preview, the experimental browser Apple first introduced in March 2016. Apple designed the ‌Safari Technology Preview‌ to test features that may be introduced into future release versions of Safari.

Safari Technology Preview Feature
‌Safari Technology Preview‌ release 142 includes bug fixes and performance improvements for Web Inspector, CSS Subgrid, CSS Container Queries, CSS, Web Animations, Rendering, JavaScript, Forms, Shared Workers, Workers, Dialog Element, Web API, Experimental Model Element, and Web Extensions.

The current ‌Safari Technology Preview‌ release is built on the Safari 15.4 update and it includes Safari 15 features introduced in macOS Monterey.

The ‌Safari Technology Preview‌ update is available through the Software Update mechanism in System Preferences 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.

Popular Stories

iphone 17 pro dark blue 1

Apple Preparing 'Most Significant Overhaul in the iPhone's History'

Sunday March 29, 2026 8:18 am PDT by
Bloomberg's Mark Gurman has high expectations for Apple's first foldable iPhone. In his Power On newsletter today, he said the foldable iPhone will be "the most significant overhaul in the iPhone's history." "iPhone 4, iPhone 6 and iPhone X were clearly a big deal, but this is a whole new design," he said. Like Samsung's Galaxy Z Fold 7, the foldable iPhone will reportedly open up like ...
Apple Event Logo

Apple to Launch These 15+ New Products Later This Year

Friday March 27, 2026 2:03 pm PDT by
March has been an incredibly busy month for Apple, with the company unveiling more than 10 new products and accessories. We said hello to the MacBook Neo at the start of the month, and we bid farewell to the Mac Pro at the end of it. Nevertheless, there is still a lot more to come this year. Beyond the usual annual updates to iPhones and Apple Watches, Apple's all-new smart home hub is...
Apple Apps Grid

Apple Releasing Two New iPhone Apps This Year

Saturday March 28, 2026 8:00 am PDT by
Apple is expected to release two new iPhone apps this year, including an Apple Business app and a Siri app with chatbot-like functionality. With the Apple Business app, employees at businesses using the new Apple Business platform will be able to install apps for work, view contact information for colleagues, and request support. Apple Business is launching on April 14, and it replaces Apple ...

Top Rated Comments

BWhaler Avatar
53 months ago
I love Safari.
Score: 4 Votes (Like | Disagree)
DekuSprout Avatar
53 months ago
Private relay is a major advantage of Safari I think.
Score: 3 Votes (Like | Disagree)
PsykX Avatar
53 months ago
Even though it's the browser that has implemented the least web standards amongst the competition, according to both www.html5test.com ('http://www.html5test.com') and https://wpt.fyi/interop-2022?stable
I am glad Apple has recently committed to make it change.

I disagree with those who say that it's the IE of today, because IE would score like 15% while others would score 90%. We're not here at all.

I also prefer Safari over other browsers, especially since they made it possible to reverse the changes they brought to the UI in Monterey.
Score: 3 Votes (Like | Disagree)
mdriftmeyer Avatar
53 months ago

Even though it's the browser that has implemented the least web standards amongst the competition, according to both www.html5test.com ('http://www.html5test.com') and https://wpt.fyi/interop-2022?stable
I am glad Apple has recently committed to make it change.

I disagree with those who say that it's the IE of today, because IE would score like 15% while others would score 90%. We're not here at all.

I also prefer Safari over other browsers, especially since they made it possible to reverse the changes they brought to the UI in Monterey.
I need to put something to rest.







Attachment Image

Attachment Image

Attachment Image
Score: 2 Votes (Like | Disagree)
53 months ago
I switched to Chrome after 5+ years of using Safari exclusively and I have to agree with those who call Safari the new IE. Safari is just years behind the competition in almost everything and Apple doesn’t give a crap, because its preinstalled on every Apple device. Sounds familiar?
Score: 2 Votes (Like | Disagree)
MrGunny94 Avatar
53 months ago
Safari has been my go to to browser for Apple platforms ever since I can remember, these days I have Edge next to it because of work but for personal stuff I still use Safari.

One thing I hope stye improve is the RAM management because just takes way too much RAM on like 3 simple tabs.
Score: 2 Votes (Like | Disagree)