Apple Releases Safari Technology Preview 177 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 177 includes fixes and updates for Web Inspector, CSS, Rendering, Popover, Media, JavaScript, Web API, Accessibility, and Apple Pay.

The update now features content coming in Safari 17 alongside macOS Sonoma. On Sonoma, the browser offers Profiles for separating browsing data like History and Favorites, web apps, and improved private browsing mode. Features for all operating systems include Feature Flags (replacing Experimental Features), a redesigned Develop menu, Live Text support for vertical text recognition in images and videos, HEIC support, and JPEG XL, a new image format with an improved compression algorithm for better image quality at smaller file sizes than JPEG.

The current ‌Safari Technology Preview‌ release is compatible with machines running macOS Ventura and macOS Sonoma, the latest version of macOS that Apple is beta testing right now.

The ‌Safari Technology Preview‌ update is available through the Software Update mechanism in System Preferences or System Settings 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

New Things Your iPhone Can Do in iOS 18

20 New Things Your iPhone Can Do in iOS 18.2

Monday December 16, 2024 8:55 am PST by
Apple released iOS 18.2 in the second week of December, bringing the second round of Apple Intelligence features to iPhone 15 Pro and iPhone 16 models. This update brings several major advancements to Apple's AI integration, including completely new image generation tools and a range of Visual Intelligence-based enhancements. Apple has added a handful of new non-AI related feature controls as...
iphone 16 apple intelligence

Apple Drops Plans for iPhone Hardware Subscription Service

Wednesday December 18, 2024 11:39 am PST by
Apple is no longer planning to launch a hardware subscription service that would let customers "subscribe" to get a new iPhone each year, reports Bloomberg's Mark Gurman. Gurman first shared rumors about Apple's work on a hardware subscription service back in 2022, and at the time, he said that Apple wanted to develop a simple system that would allow customers to pay a monthly fee to gain...
iPhone 17 Pro Dual Tone Feature 1

iPhone 17 Pro Rumored to Stick With 'Triangular' Camera Design

Wednesday December 18, 2024 2:36 am PST by
Contrary to recent reports, the iPhone 17 Pro will not feature a horizontal camera layout, according to the leaker known as "Instant Digital." In a new post on Weibo, the leaker said that a source has confirmed that while the appearance of the back of the iPhone 17 Pro has indeed changed, the layout of the three cameras is "still triangular," rather than the "horizontal bar spread on the...
elevation lab airtag battery

Your AirTag's Battery Will Last for Up to 10 Years With Elevation Lab's New TimeCapsule Enclosure

Wednesday December 18, 2024 10:05 am PST by
Elevation Lab today announced the launch of TimeCapsule, an innovative and simple solution for increasing the battery life of Apple's AirTag. Priced at $20, TimeCapsule is an AirTag enclosure that houses two AA batteries that offer 14x more battery capacity than the CR2032 battery that the AirTag runs on. It works by attaching the AirTag's upper housing to the built-in custom contact in the...
apple tv 4k yellow bg feature

New Apple TV Rumored to Launch Next Year With These Features

Tuesday December 17, 2024 9:02 am PST by
The current Apple TV 4K was released more than two years ago, so the streaming device is becoming due for a hardware upgrade soon. Fortunately, it was recently rumored that a new Apple TV will launch at some point next year. Below, we recap rumors about the next-generation Apple TV. Bloomberg's Mark Gurman last week reported that Apple has been working on its own combined Wi-Fi and...
blackmagic vision pro

Blackmagic Debuts $30K 3D Camera for Capturing Video for Vision Pro

Monday December 16, 2024 4:17 pm PST by
Blackmagic today announced that its URSA Cine Immersive camera is now available for pre-order, with deliveries set to start late in the first quarter of 2025. Blackmagic says that this is the world's first commercial camera system designed to capture 3D content for the Vision Pro. The URSA Cine Immersive camera was first introduced in June, but it has not been available for purchase until...
mac pro creativity

Apple Launched the Controversial 'Trashcan' Mac Pro 11 Years Ago Today

Thursday December 19, 2024 7:00 pm PST by
Apple launched the controversial "trashcan" Mac Pro eleven years ago today, introducing one of its most criticized designs that persisted through a period of widespread discontentment with the Mac lineup. The redesign took the Mac Pro in an entirely new direction, spearheaded by a polished aluminum cylindrical design that became unofficially dubbed the "trashcan" in the Mac community. All of ...
iPhone 17 Slim Feature

'iPhone 17 Air' With 'Major' Design Changes and 19-Inch MacBook Detailed in New Report

Sunday December 15, 2024 9:47 am PST by
Apple is planning a series of "major design" and "format changes" for iPhones over the next few years, according to The Wall Street Journal's Aaron Tilley and Yang Jie. The paywalled report published today corroborated the widely-rumored "iPhone 17 Air" with an "ultrathin" design that is thinner than current iPhone models. The report did not mention a specific measurement, but previous...

Top Rated Comments

contacos Avatar
18 months ago
Kind of disappointed with the implementation of Profiles on Safari by Apple.

Unless I am missing something, it does not actually completely separate the different Profiles?

Like I would like to have a „Private“ and „Work“ Profile with its own Bookmarks, Saved Passwords and Reading list but as far as I could see, it just throws everything together, which makes Profiles somewhat pointless to have?

I don’t need to have my Tool logins from work saved on my Private profile, nor do I need my private bookmarks appear among my work related things
Score: 3 Votes (Like | Disagree)
kkee Avatar
18 months ago

Kind of disappointed with the implementation of Profiles on Safari by Apple.

Unless I am missing something, it does not actually completely separate the different Profiles?

Like I would like to have a „Private“ and „Work“ Profile with its own Bookmarks, Saved Passwords and Reading list but as far as I could see, it just throws everything together, which makes Profiles somewhat pointless to have?

I don’t need to have my Tool logins from work saved on my Private profile, nor do I need my private bookmarks appear among my work related things
I just checked and mine has separate profiles for data history and favorites for each profiles I created.
Score: 3 Votes (Like | Disagree)
ThunderSkunk Avatar
18 months ago
Yes that's nice, but since most Apple computers on earth can't install it, but they can all run Safari's competitors, it hardly makes sense to have one new computer running safari when all your Intel macs have to run Firefox or Opera, or...

Score: 2 Votes (Like | Disagree)
StellarVixen Avatar
18 months ago
Together with Firefox, the only challenger to the Chromium’s dominance. We must protect it at all costs

I wish they tried another shot at releasing it on Windows
Score: 2 Votes (Like | Disagree)
mdatwood Avatar
17 months ago
I like Safari and want to use it, but tab search is lacking. Chrome lets me move between tabs across all Chrome windows with the shift-command-A hotkey and lets me select a tab without ever leaving the keyboard. It's so annoying that Safari is almost functional, but drops the ball at the finish line forcing me to click the tab.
Score: 1 Votes (Like | Disagree)
coffeemilktea Avatar
17 months ago
If only I could install uBlock Origin on it, I would switch to Safari as my main browser immediately. :apple:

...but I can't, so I'm still on Firefox. ?
Score: 1 Votes (Like | Disagree)