Apple Releases Safari Technology Preview 150 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 150 includes bug fixes and performance improvements for Web Inspector, CSS, Shadow DOM, JavaScript, Web Animations, Web Share, WebAuthn, Web API, Rendering, and Accessibility.

The current ‌Safari Technology Preview‌ release is built on the Safari 16 update and it includes support for feature coming in macOS Ventura such as Live Text, Passkeys, Web Extension improvements, and more.

The new build of ‌Safari Technology Preview‌ is compatible with machines running macOS 13 Ventura, unlike prior versions of ‌Safari Technology Preview‌, but it no longer works with macOS Big Sur.

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 Blue Feature Tighter Crop

iPhone 17 Pro Launching in Three Months With These 12 New Features

Saturday June 14, 2025 5:45 pm PDT by
The iPhone 17 Pro and iPhone 17 Pro Max are three months away, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of June 2025:Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone X through iPhone 14 Pro have a...
apple watch ultra 2 new black

Apple Watch Ultra 3 Finally Coming After Two-Year Hiatus

Monday June 16, 2025 8:45 am PDT by
Apple will finally deliver the Apple Watch Ultra 3 sometime this year, according to analyst Jeff Pu of GF Securities Hong Kong (via @jukanlosreve). The analyst expects both the Apple Watch Series 11 and Apple Watch Ultra 3 to arrive this year (likely alongside the new iPhone 17 lineup, if previous launches are anything to go by), according to his latest product roadmap shared with...
Logitech Logo Feature

Logitech Announces Two New Accessories for WWDC

Friday June 13, 2025 7:22 am PDT by
Alongside WWDC this week, Logitech announced notable new accessories for the iPad and Apple Vision Pro. The Logitech Muse is a spatially-tracked stylus developed for use with the Apple Vision Pro. Introduced during the WWDC 2025 keynote address, Muse is intended to support the next generation of spatial computing workflows enabled by visionOS 26. The device incorporates six degrees of...
iPadOS 26 App Windowing

Apple Explains Why iPads Don't Just Run macOS

Friday June 13, 2025 7:46 am PDT by
iPadOS 26 allows iPads to function much more like Macs, with a new app windowing system, a swipe-down menu bar at the top of the screen, and more. However, Apple has stopped short of allowing iPads to run macOS, and it has now explained why. In an interview this week with Swiss tech journalist Rafael Zeier, Apple's software engineering chief Craig Federighi said that iPadOS 26's new Mac-like ...
iphone 16 pro models 1

17 Reasons to Wait for the iPhone 17

Thursday June 12, 2025 8:58 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup. If you skipped the iPhone...
iOS 26 Feature

Apple Seeds Revised iOS 26 Developer Beta to Fix Battery Issue

Friday June 13, 2025 10:15 am PDT by
Apple today provided developers with a revised version of the first iOS 26 beta for testing purposes. The update is only available for the iPhone 15 and iPhone 16 models, so if you're running iOS 26 on an iPhone 14 or earlier, you won't see the revised beta. Registered developers can download the new beta software through the Settings app on each device. The revised beta addresses an...
terminal macos tahoe

Apple's Terminal App Gets Colorful Redesign in macOS Tahoe

Monday June 16, 2025 4:12 am PDT by
Apple's Terminal app is getting a visual refresh in macOS Tahoe, and it's the first notable design update since the command-line tool debuted. The updated Terminal will support 24-bit color and Powerline fonts, according to Apple's State of the Platforms presentation at WWDC25. The app will also adopt the new Liquid Glass aesthetic with redesigned themes that align with macOS 26's broader...

Top Rated Comments

PsykX Avatar
38 months ago

Who uses Safari anymore?.
I switched to Edge and I am mediocrely happy with it, which is light years less terrible user friendly than Safari. Not sure I made sense :)
The pinned home page was good and when Apple removed it, along with the 1998 bookmarks management interface I switched to a 2005 style browser. Ah, the good old days of 2015 when Safari was “fast and focused”…
Bookmarks management sucks, but Safari's the fastest browser.
I can't trade it for anything else at the moment.
Score: 4 Votes (Like | Disagree)
temende Avatar
38 months ago
I keep running into this Safari bug (?) where I'll go to a url in a new tab and it'll quickly flash the page before going back to an empty tab.
Score: 4 Votes (Like | Disagree)
6787872 Avatar
38 months ago
it's a shame safari has such a horrific extension system or it would be a decent browser.
Score: 3 Votes (Like | Disagree)
Kraszim Avatar
38 months ago
I gave up on safari recently due to very limited content blocking options. Webpages recently become such a mess with miriads of different cookie popups etc. that trying to use them without content blocking is not particularly pleasant. Firefox does it way better. It's a shame really as Safari is best integrated with macOS, and in my opinion faster.
Score: 3 Votes (Like | Disagree)
tracker_oz Avatar
38 months ago

Fastest? lol.. try the others, seriously.. even swiping back & forth pages it's probably among the slowest ones.

Bookmarks management suck? What about extensions? dev tools? tab groups? cookie management? privacy tools? RAM management? no built-in ad blocker, compact view with the same UI glitches since beta 1, sometimes even icloud.com fails to load while working fine in other browsers, media playback is a pandora box depending the site, issues with most productivity domains from Google, Atlassian, Microsoft, etc, etc, etc, etc, etc, etc, etc, etc.
Wow! I wish that I had your "milli-second response" eyes! Seriously though, Safari loads cached pages very, very fast, and using far less resources than Chrome-based browsers.

Something that is worrying me, and I know many others too, is the move towards the bad-old days of "works best with..." or "only works with...". Apparently, we are no better than our predecessors. I am disappointed that so many users on this forum are helping to make this happen.

"That men do not learn very much from the lessons of history is the most important
of all the lessons that History has to teach."

Aldous Huxley
Score: 2 Votes (Like | Disagree)
3Rock Avatar
38 months ago
Max studio here and I have absolutely no problem with Safari. I will never use chrome but I do like safari no matter who says differently.
Score: 1 Votes (Like | Disagree)