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.

Top Rated Comments

nvmls Avatar
31 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
31 months ago
Does it remove the trainwreck new design?
Score: 1 Votes (Like | Disagree)
gank41 Avatar
31 months ago

Does it remove the trainwreck new design?
no it does not...
Score: 1 Votes (Like | Disagree)
Cheesehead Dave Avatar
31 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
31 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
31 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)

Popular Stories

General Apps Messages

Apple Announces 'Groundbreaking' New Security Protocol for iMessage

Wednesday February 21, 2024 6:00 am PST by
Apple today announced a new post-quantum cryptographic protocol for iMessage called PQ3. Apple says this "groundbreaking" and "state-of-the-art" protocol provides "extensive defenses against even highly sophisticated quantum attacks." Apple believes the PQ3 protocol's protections "surpass those in all other widely deployed messaging apps," according to its blog post:Today we are announcing...
iOS 17

iOS 17.4 Will Add These New Features to Your iPhone

Monday February 19, 2024 6:52 am PST by
Apple last month confirmed that iOS 17.4 will be released in March, and the update includes several new features and changes for the iPhone. Key new features in iOS 17.4 include major App Store changes in the EU and Apple Podcasts transcripts. The update also adds new emoji and includes preparations for the launch of next-generation CarPlay later this year. More details about the new...
Beyond iPhone 13 Better Blue Face ID Single Camera Hole

Six Reasons to Wait for Next Year's iPhone 17

Thursday February 22, 2024 4:20 am PST 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 concurrently, which is why we sometimes get rumored feature leaks so far ahead of launch. The iPhone 17 series is no different, and already we have some idea of what to expect from Apple's 2025 smartphone lineup. If you plan to skip...
samsung galaxy ring

'Apple Ring' Allegedly in Development to Rival Samsung Galaxy Ring

Tuesday February 20, 2024 2:27 am PST by
Apple is speeding up development of a smart ring that can be worn on the finger to track users' health biometrics, claims a new report coming out of Korea. Teaser image of Samsung Galaxy Ring shown at Galaxy Unpacked in January Apple has toyed with the idea of a ring wearable for several years, as indicated by several patents, but with Samsung preparing to bring its own product to market, the ...
volvo s60 drivers apple maps

iOS 17.4 Beta Adds CarPlay Option to Show Upcoming Maneuvers in Instrument Cluster

Tuesday February 20, 2024 10:47 am PST by
The fourth beta of iOS 17.4 that Apple released today adds a new CarPlay feature, according to the notes that Apple provided to developers. In supported CarPlay vehicles, there's now an Apple Maps option to show information about upcoming maneuvers in the instrument cluster. CarPlay users will be able to swap the display type between the main and instrument cluster by tapping on the map...
Oled iPads and MackBook Pro Notch

Apple's OLED Roadmap: New iPad Mini, Foldable iPad Pro, and More

Wednesday February 21, 2024 5:29 am PST by
Apple is planning to launch at least nine new devices with OLED displays across the iPad and MacBook product lines, according to an updated forecast from research firm Omdia that sets out the company's plans in detail. As widely rumored, Apple's push to transition to OLED will apparently be jump-started by the release of new 11- and 13-inch iPad Pro models this year. The displays will...
iPad Pro OLED Feature 2

Apple's Upcoming OLED iPad Pro Models Rumored to Be Much Thinner

Tuesday February 20, 2024 1:39 pm PST by
Apple is planning to update the iPad Air and iPad Pro lineups as soon as March, and the new iPad Pro models will be significantly thinner according to dimensions shared by 9to5Mac. Citing sources with knowledge of Apple's plans, the site claims that the larger version will be more than 1mm thinner. The current 12.9-inch iPad Pro measures in at 6.4mm thick, but the new model is said to be 5mm ...
Next Generation CarPlay Porsche 1

Apple Launching Next-Generation CarPlay This Year With These New Features

Wednesday February 21, 2024 2:03 pm PST by
Apple recently updated its website to confirm that the first vehicle models with next-generation CarPlay support will debut "in 2024." This wording is shown on Apple's regional websites for the U.S., Canada, Australia, New Zealand, and many other countries. The iOS 17.4 beta includes code-level references to eight new CarPlay apps:Auto Settings: This app will let you manage paired iPhones...