Apple Releases Safari Technology Preview 133 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 133 includes bug fixes and performance improvements for CSS, CSS Cascade Layers, CSS Font Loading API, Accessibility, JavaScript, Web API, WebRTC, Media, WebGL, and Web and App Extensions.

The current ‌Safari Technology Preview‌ release is built on the new Safari 15 update included in macOS Monterey, and as such, it includes several Safari 15 features. There's a new streamlined tab bar with support for Tab Groups to organize tabs, along with improved support for Safari Web Extensions.

Live Text allows users to select and interact with text in images on the web, but the macOS Monterey beta and an M1 Mac is required. There's also Quick Notes support for adding links and Safari highlights to remember important information and ideas.

Other updates include WebGL 2 and new HTML, CSS, and JavaScript features.

The new ‌Safari Technology Preview‌ update is available for both macOS Big Sur and macOS Monterey, the newest version of the Mac operating system that's set to release this fall.

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

Apple Intelligence General Feature

Apple Intelligence Features Not Coming to European Union at Launch Due to DMA

Friday June 21, 2024 9:44 am PDT by
Apple today said that European customers will not get access to the Apple Intelligence, iPhone Mirroring, and SharePlay Screen Sharing features that are coming to the iPhone, iPad, and Mac this September due to regulatory issues related to the Digital Markets Act. In a statement to Financial Times, Apple said that there will be a delay as it works to figure out how to make the new...
iOS 18 on iPhone Feature

Everything New in iOS 18 Beta 2

Monday June 24, 2024 12:52 pm PDT by
Apple today released the second betas of iOS 18 and iPadOS 18 to developers, and the software adds support for new features that Apple is working on, plus it tweaks some of the interface changes that have been made in the updates. Apple will refine iOS 18 over the course of the next few months, with multiple changes and refinements expected from now until September. We've highlighted...
Apple WWDC24 Apple Intelligence hero 240610

Apple Explains iPhone 15 Pro Requirement for Apple Intelligence

Wednesday June 19, 2024 4:48 am PDT by
With iOS 18, iPadOS 18, and macOS Sequoia, Apple is introducing a new personalized AI experience called Apple Intelligence that uses on-device, generative large-language models to enhance the user experience across iPhone, iPad, and Mac. These new AI features require Apple's latest iPhone 15 Pro and iPhone 15 Pro Max models to work, while only Macs and iPads with M1 or later chips will...
amazon echo dot

Amazon Could Charge Up to $10/Month for Alexa

Friday June 21, 2024 2:55 pm PDT by
Apple competitor Amazon is working on a revamp of its Alexa assistant, and the new version could cost up to $10 per month, according to a report from Reuters. The upcoming version of Alexa will support conversational generative AI, and Amazon is planning for two tiers of service. There will be a free tier and a second, premium tier that is priced at $5 at a minimum, with Amazon considering...
top stories 22jun2024

Top Stories: Apple Watch X Rumors, New Final Cut App for iPhone, and More

Saturday June 22, 2024 6:00 am PDT by
The avalanche of news coming out of WWDC earlier this month is finally starting to slow, but that doesn't mean there wasn't still lots to talk about in Apple news and rumors this week. This week saw some additional rumors about the upcoming Apple Watch models, the release of major Final Cut Pro updates, the launch of Apple's annual Back to School promo in the U.S. and Canada, new...

Top Rated Comments

nvmls Avatar
36 months ago

Of course it was intentional. That's how all side bars function these days.
Really? make it inferior to previous because "That's how all side bars function these days"? You should send your resume to Apple (unless you dev for them already)
Score: 2 Votes (Like | Disagree)
BWhaler Avatar
36 months ago
Does it remove the trainwreck new design?
Score: 1 Votes (Like | Disagree)
gank41 Avatar
36 months ago

Does it remove the trainwreck new design?
no it does not...
Score: 1 Votes (Like | Disagree)
Cheesehead Dave Avatar
36 months ago
Maybe I'm thinking of something else, but I swear I've been using this since long before 2016.
Score: 1 Votes (Like | Disagree)
elptdbi3lYI Avatar
36 months ago

Yes, that is what I'm referring to, and then that allows you to keep the SideBar open on the Start Page and have it NOT be there when you navigate away to any other page. And yes, the Start Page does show the most recent items from my Reading List, but I tend to go back further than the 12 listings it shows.

I honestly DO like everything else about Safari 15. I like the extensions and I love the new Start Page and all of the available content and how it syncs across everywhere. That's great! But the hate of now having to go thru many steps to scroll through my Reading List just makes it all a wash for me. ?
Not sure if you're aware but there's "Show More" button besides Reading List on start page, which I think shows all of the entries and stays that way.
I find it strange that you like everything else though, personally I can't stand how broken tabs are and that we don't have a fallback to old style.
Score: 1 Votes (Like | Disagree)
gank41 Avatar
36 months ago

Not sure if you're aware but there's "Show More" button besides Reading List on start page, which I think shows all of the entries and stays that way.
I find it strange that you like everything else though, personally I can't stand how broken tabs are and that we don't have a fallback to old style.
Yeah, the whole Tab situation is a mess, too. I use Nitefall ('https://apps.apple.com/us/app/nitefall-dark-mode-for-safari/id1575190591') on macOS and Noir ('https://apps.apple.com/us/app/noir-dark-mode-for-safari/id1581140954') on iOS/iPadOS. That seems to make the Tabs a little more palatable. Plus the whole Dark Mode dealio..

And yes, the Show More option is helpful. But even still, everything in Safari just stays in a small section in the middle instead of being dynamic and using up the rest of the space on the page. It's better than nothing, I guess. But that doesn't have the search feature like it does in the SideBar. Sometimes I need to reference something that's maybe 6-8 months old or older and searching for it is easy- er, was easy.
Score: 1 Votes (Like | Disagree)