Apple Releases Safari Technology Preview 110 With Bug Fixes and Performance Improvements

safaripreviewiconApple today released a new update for Safari Technology Preview, the experimental browser Apple first introduced four years ago 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 release 110 includes bug fixes and performance improvements for WebRTC, Web Authentication, Web Animations, Web API, Media, CSS, Layout, Rendering, Accessibility, JavaScript, Storage Access API, Text Manipulation, Security, and Web Inspector.

The current ‌Safari Technology Preview‌ release is the built on the new Safari 14 update included in macOS Big Sur with support for Safari Web Extensions imported from other browsers, tab previews, password breach notifications, web authentication with Touch ID, and more.

The new ‌Safari Technology Preview‌ update is available for macOS Catalina and macOS Big Sur, the newest version of the Mac operating system that's set to be released 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

iOS 26

Everything New in iOS 26.1 Beta 1

Monday September 22, 2025 12:44 pm PDT by
Apple released the first beta of iOS 26.1 today, just a week after launching iOS 26. iOS 26.1 mainly adds new languages to Apple Intelligence, but there are a few other features that are worth knowing about. New Apple Intelligence Languages Apple Intelligence is now available in Danish, Dutch, Norwegian, Portuguese (Portugal), Swedish, Turkish, Chinese (Traditional), and Vietnamese. AirPo...
apple tv 4k new orange

Next Apple TV Expected to Launch This Year With These New Features

Monday September 22, 2025 10:00 am PDT by
The next Apple TV is expected to be released later this year, and a handful of new features and changes have been rumored for the device. Below, we recap what to expect from the next Apple TV, according to rumors. Likely Features N1 Chip With Wi-Fi 7 Last year, Bloomberg's Mark Gurman said the next Apple TV would be equipped with Apple's own combined Wi-Fi and Bluetooth chip, which is...
Apple Intelligence General Feature 2

iOS 26.1 Adds New Apple Intelligence Languages and Expands AirPods Live Translation

Monday September 22, 2025 11:15 am PDT by
With iOS 26.1, Apple Intelligence is gaining support for additional languages, including Danish, Dutch, Norwegian, Portuguese (Portugal), Swedish, Turkish, Chinese (Traditional), and Vietnamese. Apple announced plans to expand the languages that can be used with Apple Intelligence last year, and now the added language support is here. Apple Intelligence is now available in the following...
iPhone 17 Pro USB C Port

iPhone 17 Pro Max's USB-C Charging Speeds Tested With Apple Chargers

Monday September 22, 2025 7:29 am PDT by
The website ChargerLAB has tested the iPhone 17 Pro Max's USB-C charging speeds with a variety of Apple's chargers, from 18W to 140W. The device reached a peak charging speed of around 36W with the following Apple chargers:40W Dynamic Power Adapter with 60W Max 61W USB-C Power Adapter 67W USB-C Power Adapter 70W USB-C Power Adapter 96W USB-C Power Adapter 140W USB-C Power AdapterFor...
iPhone 17 Pro and Air N1 Feature

Some iPhone 17, iPhone 17 Pro, and iPhone Air Users Experiencing Intermittent Wi-Fi Issue

Monday September 22, 2025 8:44 am PDT by
Apple's latest iPhone models launched on Friday, and some early adopters of the devices are experiencing intermittent Wi-Fi issues. Affected customers say Wi-Fi connectivity periodically cuts out on the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air, with hundreds of comments about the issue posted across the MacRumors Forums, Reddit, and the Apple Support Community over the...
Apple Foldable Thumb

Foldable iPhone Like 'Two Titanium iPhone Airs' Joined at the Hinge

Monday September 22, 2025 2:16 am PDT by
Next year's rumored foldable iPhone will showcase an ultra-thin design resembling "two titanium iPhone Airs side-by-side," according to Bloomberg's Mark Gurman. Writing in the Q&A section of his latest Power On newsletter, Gurman says Apple's first foldable device will be "super thin and a design achievement," combining Apple's thinnest iPhone form factor with cutting-edge folding...
iPhone 17 Pro Colors

Skipped the iPhone 17 Pro? Here's What is Rumored for iPhone 18 Pro

Tuesday September 23, 2025 8:55 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are still a year away, there are already a few rumors about the devices that offer an early look ahead. Below, we have recapped some of the early iPhone 18 Pro rumors so far. This story was published previously, and it has been updated to reflect the latest rumors. Many early rumors prove to be true, but nothing is confirmed yet, and Apple's...
iphone 17 pro dark blue 1

Apple Blames In-Store MagSafe Chargers for iPhone 17 Pro Display Model Scratches

Wednesday September 24, 2025 10:22 am PDT by
The marks on the iPhone 17 Pro models that people have noticed at Apple retail stores are caused by the chargers that Apple uses, Apple confirmed today. Apple told 9to5Mac that worn MagSafe charging stands in stores are causing marks on the iPhone 17 Pro and iPhone 17 Pro Max. Apple says that the marks are not scratches, and are instead material transfer from the stand to the phone. The...
ios 26 digital id passport wallet

Apple Confirms iOS 26 Wallet Passport Feature is Coming in 2025

Tuesday September 23, 2025 1:06 pm PDT by
Digital ID, the iOS 26 feature that lets U.S. passport holders add their passports to the Wallet app, is coming later in 2025, Apple confirmed today. Apple updated the release timing wording of Digital ID on its iOS 26 features page. "Digital ID will be coming later this year with US passports only," it reads. Prior to today, the footnote for the feature said "Digital ID will be available ...
maxresdefault

iPhone 17 Pro is Vulnerable to Scratching, But Not Where You Might Think

Tuesday September 23, 2025 2:18 pm PDT by
Early reports have suggested that the iPhone 17 Pro and iPhone Air are more vulnerable to scratches and scuffs, primarily due to damage spotted at Apple Stores. Apple customers have discovered that the iPhone Air and iPhone 17 Pro models Apple has out for display at its retail locations have scratching in the area of the MagSafe charger. Those devices are handled by hundreds to thousands of...

Top Rated Comments

coolfactor Avatar
68 months ago
I use the regular Safari and the Tech Preview side-by-side for different sites and barely notice a difference. Overall, Safari remains my favourite browser.


They have fixed that annoying bug that caused it to crash whenever you opened a new window. Even though I knew about it I still did it 10 times a day out of habit.
Zero crashes here. Maybe something related to your settings? Do you have it open a particular page? Do you have it remember opened tabs? I don't have any of that... just opens to a blank page, not a site.
Score: 5 Votes (Like | Disagree)
lkrupp Avatar
68 months ago

They have fixed that annoying bug that caused it to crash whenever you opened a new window. Even though I knew about it I still did it 10 times a day out of habit.
That NEVER happens to me. I’ve been using Safari Technology Preview as my primary browser for over a year now and it very stable.
Score: 5 Votes (Like | Disagree)
Birkan Avatar
68 months ago
So I tested VP9 support using a website that checks media mime support ('https://cconcolato.github.io/media-mime-support/') and STP release 110 indeed supports VP9 on the browser side. However, YouTube did not load any VP9 video in my limited testing so far. The nice thing is VP9 decoding is provided by VideoToolbox (VT) which can be used by any macOS app (video player, transcoder etc) going forward which is great. Hopefully, they will also expose VP9 encoding functionality in VT as well.




PS: Upon further inspection, they only seem to support VP9 codec inside MP4 container for now, unless I missed something. Most if not all VP9 videos in YouTube seem to use Webm container instead of MP4. However, they seem to support Webm/VP9 on iOS so it might be coming to the macOS in the upcoming STP releases.

Attachment Image

Attachment Image
Score: 4 Votes (Like | Disagree)
MauiPa Avatar
68 months ago

They have fixed that annoying bug that caused it to crash whenever you opened a new window. Even though I knew about it I still did it 10 times a day out of habit.
literally, that never happened to me. I am always updated to latest (actually on Big Sur t the moment)


Only Apple would sell 5k iMacs that only support 1080p on YouTube on their native browser. Come on, Apple, it’s 2020!
hmm, YouTube is google, they couldn't possibly be doing anything nefarious, now could they? Don't know technically why this is the case, but chances are google is using proprietary tech
Score: 3 Votes (Like | Disagree)
Digital Jive Avatar
68 months ago
They have fixed that annoying bug that caused it to crash whenever you opened a new window. Even though I knew about it I still did it 10 times a day out of habit.
Score: 2 Votes (Like | Disagree)
JimmyjamesEU Avatar
68 months ago

No kidding, and you even tried on all browsers.
I did. I tried lynx, WorldWideWeb, Netscape 1.0, Omniweb, IE6 etc. All with the express aim of proving you can manage the basic task of pasting a url. Alas, my efforts were in vain. I await another "impressive" and "stable" effort.
Score: 2 Votes (Like | Disagree)