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

iphone 16 pro ghost hand

5 Reasons to Skip This Year's iPhone 17 Pro

Thursday July 10, 2025 4:54 am PDT by
Apple will launch its new iPhone 17 series in two months, and the iPhone 17 Pro models are expected to get a new design for the rear casing and the camera area. But more significant changes to the lineup are not expected until next year, when the iPhone 18 models arrive. If you're thinking of trading in your iPhone for this year's latest, consider the following features rumored to be coming...
apple wallet drivers license feature iPhone 15 pro

Apple Says iPhone Driver's Licenses Will Expand to These 8 U.S. States

Tuesday July 8, 2025 11:26 am PDT by
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps. Unfortunately, this feature continues to roll out very slowly since it was announced in 2021, with only nine U.S. states, Puerto Rico,...
iPhone 17 Pro in Hand Feature Lowgo

iPhone 17 Pro to Reverse iPhone X Design Decision

Monday July 7, 2025 9:46 am PDT by
Since the iPhone X in 2017, all of Apple's highest-end iPhone models have featured either stainless steel or titanium frames, but it has now been rumored that this design decision will be coming to an end with the iPhone 17 Pro models later this year. In a post on Chinese social media platform Weibo today, the account Instant Digital said that the iPhone 17 Pro models will have an aluminum...
iPhone 17 Pro in Hand Feature Lowgo

Leaker Reveals Amount of RAM in iPhone 17 Through iPhone 17 Pro Max

Wednesday July 9, 2025 8:08 am PDT by
Three out of four iPhone 17 models will feature more RAM than the equivalent iPhone 16 models, according to a new leak that aligns with previous rumors. The all-new iPhone 17 Air, the iPhone 17 Pro, and the iPhone 17 Pro Max will each be equipped with 12GB of RAM, according to Fixed Focus Digital, an account with more than two million followers on Chinese social media platform Weibo. The...
apple account card feature

Apple Account Card Expanding to More Countries

Tuesday July 8, 2025 7:34 pm PDT by
Apple is expanding the ability to add an Apple Account Card to the Wallet app to more countries, according to backend Apple Pay changes. With iOS 15.5, Apple updated the Wallet app to allow users to add an Apple Account Card, which displays the Apple credit balance associated with an Apple ID. If you receive an Apple gift card, for example, it is added to an Apple Account that is also...
macbook pro blue green

M5 MacBook Pro No Longer Coming in 2025

Thursday July 10, 2025 12:38 pm PDT by
Apple does not plan to refresh any Macs with updated M5 chips in 2025, according to Bloomberg's Mark Gurman. Updated MacBook Air and MacBook Pro models are now planned for the first half of 2026. Gurman previously said that Apple would debut the M5 MacBook Pro models in late 2025, but his newest report suggests that Apple is "considering" pushing them back to 2026. Apple is now said to be...
iOS 26 Feature

Everything New in iOS 26 Beta 3

Monday July 7, 2025 1:20 pm PDT by
Apple is continuing to refine and update iOS 26, and beta three features smaller changes than we saw in beta 2, plus further tweaks to the Liquid Glass design. Apple is gearing up for the next phase of beta testing, and the company has promised that a public beta is set to come out in July. Transparency In some apps like Apple Music, Podcasts, and the App Store, Apple has toned down the...
iCloud General Feature Redux

iPhone Users Who Pay for iCloud Storage Receive These Five Perks

Wednesday July 9, 2025 9:20 am PDT by
If you pay for iCloud storage on your iPhone, did you know that Apple offers you five perks beyond the extra storage space, at no additional cost? Here are the perks included with all iCloud+ plans:Private Relay keeps your Safari browsing history entirely private from network providers, websites, and even Apple. Hide My Email generates unique, random email addresses whenever needed. Hom...
Foldable iPhone 2023 Feature 1

Foldable iPhone Display Production Begins Ahead of Launch Next Year

Wednesday July 9, 2025 10:59 pm PDT by
Production of foldable OLED displays for Apple's first foldable iPhone have begun ahead of its expected launch next year, Korea's ETNews reports. The first foldable iPhone's displays are being produced by Samsung Display, who are establishing a production line dedicated to the upcoming Apple device its A3 factory in Asan, Chungcheongnam-do. The production line will make displays exclusively...

Top Rated Comments

contacos Avatar
25 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
25 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
25 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
25 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
25 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
25 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)