Apple Releases Safari Technology Preview 147 With macOS Ventura Features

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
The current ‌Safari Technology Preview‌ release is built on the Safari 16 update and it includes features coming in macOS Ventura. It adds support for Live Text in videos and images, new web technologies, web push Passkeys, improved Safari Web Extensions, and more, with Apple's notes below.

Many of the new Safari 16 features are now available in Safari Technology Preview 147:

  • Live Text. Select and interact with text in videos or translate text in images on the web in macOS Ventura betas on Apple Silicon-based Macs.
  • Web technologies. Experience and test the HTML, CSS, JavaScript, and other web technologies that are available in Safari 16 Beta and included in previous Safari Technology Preview releases.
  • Web Push. Send notifications to people who opt-in on your website or web app with Safari Technology Preview on macOS Ventura betas.
  • Passkeys. Preview the new type of phishing-resistant credential that makes signing in to websites safer and easier. Available through Safari's WebAuthn platform authenticator. To learn more about passkeys, see Meet passkeys.
  • Improved Safari Web Extensions. Test out API improvements including the ability to open a Safari Web Extension popover programmatically.
  • Web Inspector Extensions. Build custom tooling or convert existing developer tools extensions to use in Web Inspector.
  • Flexbox Inspector. Use the new visualization overlay in Web Inspector to help you more quickly and easily understand the layout of elements with Flexbox. It marks both the free space and gaps between flex items to reveal how they affect the result.

Shared Tab Groups, syncing for Tab Groups, Website Settings, and Web Extensions are not enabled in this release.

The new build of ‌Safari Technology Preview‌ is compatible with machines running macOS 13 Ventura, unlike prior versions of ‌Safari Technology Preview‌. Updates to ‌Safari Technology Preview‌ are no longer available for macOS Big Sur, according to Apple.

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 SE 4 Thumb 1

iPhone SE 4 With Apple's Own 5G Modem 'Confirmed' to Launch in March

Tuesday November 19, 2024 12:12 pm PST by
Barclays analyst Tom O'Malley and his colleagues recently traveled to Asia to meet with various electronics manufacturers and suppliers. In a research note this week, outlining key takeaways from the trip, the analysts said they have "confirmed" that a fourth-generation iPhone SE with an Apple-designed 5G modem is slated to launch towards the end of the first quarter next year. In line with previo...
airtag purple

AirTag 2 Rumored to Launch Next Year With These New Features

Sunday November 17, 2024 5:18 am PST by
Apple released the AirTag in April 2021, so it is now three over and a half years old. While the AirTag has not received any hardware updates since then, a new version of the item tracking accessory is rumored to be in development. Below, we recap rumors about a second-generation AirTag. Timing Apple is aiming to release a new AirTag in mid-2025, according to Bloomberg's Mark Gurman....
Magic Mouse Next to Keyboard

No, Apple CEO Tim Cook Didn't Say He Prefers Logitech's MX Master 3 Over the Magic Mouse

Sunday November 17, 2024 3:03 pm PST by
While the Logitech MX Master 3 is a terrific mouse for the Mac, reports claiming that Apple CEO Tim Cook prefers that mouse over the Magic Mouse are false. The Wall Street Journal last month published an interview with Cook, in which he said he uses every Apple product every day. Soon after, The Verge's Wes Davis attempted to replicate using every Apple product in a single day. During that...
Generic iOS 18 Feature Real Mock

Apple Releases iOS 18.1.1 and iPadOS 18.1.1 With Security Fixes

Tuesday November 19, 2024 10:10 am PST by
Apple today released iOS 18.1.1 and iPadOS 18.1.1, minor updates to the iOS 18 and iPadOS 18 operating systems that debuted earlier in September. iOS 18.1.1 and iPadOS 18.1.1 come three weeks after the launch of iOS 18.1. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. Apple has also released iOS 17.7.2 for...
at t turbo indicator iphone 16 pro max v0 8hrh7w5f3w1e1

AT&T Turbo Indicator Showing Up in iPhone Status Bar for Subscribers

Wednesday November 20, 2024 3:42 am PST by
AT&T has begun displaying "Turbo" in the iPhone carrier label for customers subscribed to its premium network prioritization service, according to reports on Reddit. The new indicator seems to have started appearing after users updated to iOS 18.1.1, but that could be just coincidence. Image credit: Reddit user No_Highlight7476 The Turbo feature provides enhanced network performance through ...
iPhone 17 Slim Feature Single Camera 1 Redux

'iPhone 17 Air' Rumored to Surpass iPhone 6 as Thinnest iPhone Ever

Monday November 18, 2024 1:07 pm PST by
In a research note with Hong Kong-based investment bank Haitong today, obtained by MacRumors, Apple analyst Jeff Pu said he agrees with a recent rumor claiming that the so-called "iPhone 17 Air" will be around 6mm thick. "We agreed with the recent chatter of an 6mm thickness ultra-slim design of the iPhone 17 Slim model," he wrote. If that measurement proves to be accurate, there would be ...
bug security vulnerability issue fix larry

Make Sure to Update: iOS 18.1.1 and macOS Sequoia 15.1.1 Fix Actively Exploited Vulnerabilities

Tuesday November 19, 2024 10:52 am PST by
The iOS 18.1.1, iPadOS 18.1.1, and macOS Sequoia 15.1.1 updates that Apple released today address JavaScriptCore and WebKit vulnerabilities that Apple says have been actively exploited on some devices. With the JavaScriptCore vulnerability, processing maliciously crafted web content could lead to arbitrary code execution. The WebKit vulnerability had the same issue with maliciously crafted...

Top Rated Comments

Motawa Avatar
32 months ago
Give us the new beta lmao
Score: 5 Votes (Like | Disagree)
CarlJ Avatar
32 months ago

I wonder how much Konqueror code still lives inside Safari?
According to Wikipedia ('https://en.wikipedia.org/wiki/Safari_(web_browser)#Other_features_and_system_requirements') (and this matches my memory of the events: "WebKit consisted of WebCore (based on Konqueror ('https://en.wikipedia.org/wiki/Konqueror')'s KHTML engine) and JavaScriptCore (originally based on KDE's JavaScript engine ('https://en.wikipedia.org/wiki/KDE%27s_JavaScript_engine'), named KJS)." So, if I understand correctly, nothing of Konqueror itself was used, rather it was KHTML; and, that code all went into WebKit, which is open source and up on the web ('https://webkit.org'). You could go run some comparisons to determine how much code overlap there is now, which would depend on what standards you use for measuring, I suppose.
Score: 5 Votes (Like | Disagree)
nortonandreev Avatar
32 months ago

Wish they fixed this regression from the last version:


Wish they fixed anything at all.
Score: 2 Votes (Like | Disagree)
Macative Avatar
32 months ago

Web technologies. Experience and test the HTML, CSS, JavaScript, and other web technologies that are available in Safari 16 Beta and included in previous Safari Technology Preview releases.
Wow finally. Don't know how we used Safari without these features...
Score: 2 Votes (Like | Disagree)
adamw Avatar
32 months ago
New Safari improvements and latest tech advances are always welcomed and appreciated.
Score: 1 Votes (Like | Disagree)
phrehdd Avatar
32 months ago
Let's see what happens when installed. I find one of my biggest challenge is how web browser usage sucks up so much memory. I have this page open and one other and that is taking up to 1.4 gigs. The caching has no constraints. I would like to see the ability to set a limit for the browser. If I have 4-8 pages/tabs open, it will bring my art app to a halt. Thoughts?
Score: 1 Votes (Like | Disagree)