Apple Releases Safari Technology Preview 199 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 199 includes fixes and updates for Apple Pay, CSS, Editing, JavaScript, Media, Rendering, and WebRTC.

The current ‌Safari Technology Preview‌ release is compatible with machines macOS Sonoma and the macOS Sequoia beta, the newest version of macOS that Apple is beta testing.

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

apple launch feb 2025 alt

Here Are the New Apple Products We're Still Expecting This Spring

Thursday February 20, 2025 5:06 am PST by
Now that Apple has announced its new more affordable iPhone 16e, our thoughts turn to what else we are expecting from the company this spring. There are three product categories that we are definitely expecting to get upgraded before spring has ended. Keep reading to learn what they are. If we're lucky, Apple might make a surprise announcement about a completely new product category. M4...
prioritize notifications ios 18 4

Everything New in iOS 18.4 Beta 1

Friday February 21, 2025 1:08 pm PST by
Apple finally released the first beta of iOS 18.4 to developers for testing purposes, and while the beta is lacking some of the Apple Intelligence features we were hoping for, there are some notable new additions. Subscribe to the MacRumors YouTube channel for more videos. Priority Notifications - Apple Intelligence There is a new Priority Notifications feature that can show you your most...
Apple iPhone 16e Feature

Apple Announces iPhone 16e With A18 Chip and Apple Intelligence, Pricing Starts at $599

Wednesday February 19, 2025 8:02 am PST by
Apple today introduced the iPhone 16e, its newest entry-level smartphone. The device succeeds the third-generation iPhone SE, which has now been discontinued. The iPhone 16e features a larger 6.1-inch OLED display, up from a 4.7-inch LCD on the iPhone SE. The display has a notch for Face ID, and this means that Apple no longer sells any iPhones with a Touch ID fingerprint button, marking the ...
ios 18 4 ambient music

iOS 18.4 Adds New Ambient Music Feature

Friday February 21, 2025 11:06 am PST by
In iOS 18.4, there's a new Ambient Music option that can be added to Control Center. There are four different sound categories, including Sleep, Chill, Productivity, and Wellbeing. Each category can be added to Control Center separately, and tapping one plays a random selection of sounds or music from that particular category. You can't choose what's playing from Control Center, but if...
iphone 17 pro asherdipps

iPhone 17 Pro Models Rumored to Feature Aluminum Frame Instead of Titanium Frame

Tuesday February 18, 2025 12:02 pm PST by
Over the years, Apple has switched from an aluminum frame to a stainless steel frame to a titanium frame for its highest-end iPhones. And now, it has been rumored that Apple will go back to using aluminum for three out of four iPhone 17 models. In an investor note with research firm GF Securities, obtained by MacRumors this week, Apple supply chain analyst Jeff Pu said the iPhone 17, iPhone...
iPhone 16e Feature

Apple Denies Speculation Surrounding iPhone 16e's Lack of MagSafe

Friday February 21, 2025 8:01 am PST by
Apple has confirmed that its custom-designed C1 modem in the iPhone 16e has nothing to do with the device's lack of MagSafe support, according to Macworld. Following the launch of the iPhone 16e, there was some speculation online about how MagSafe magnets might have interfered with the C1 modem's cellular connectivity performance, and this was considered to be a potential reason for the...
Generic iOS 18

Here's When Apple Will Release iOS 18.4

Wednesday February 19, 2025 11:38 am PST by
Following the launch of the iPhone 16e, Apple updated its iOS 18, iPadOS 18, and macOS Sequoia pages to give a narrower timeline on when the next updates are set to launch. All three pages now state that new Apple Intelligence features and languages will launch in early April, an update from the more broader April timeframe that Apple provided before. The next major point updates will be iOS ...
oppo find n5 fingers

World's Thinnest Foldable Phone Launches in Europe and Asia

Thursday February 20, 2025 8:55 am PST by
Oppo has launched the Find N5, the world's thinnest foldable phone yet. When closed, the book-style foldable measures 8.93mm. That's less than a millimeter thicker than an iPhone 16 Pro, and thinner than the Honor Magic V3, which was the previous record holder. The device is barely thicker than its USB-C port. Indeed, Oppo has suggested that the obstacle to making it any thinner is now "the...

Top Rated Comments

nortonandreev Avatar
8 months ago
LMAO, I just had a dream last night that a new version (301) is released. I woke up, opened maceumours and boom – indeed. hahah
Score: 2 Votes (Like | Disagree)
d4cloo Avatar
8 months ago

Seems like Safari Technology Preview has been in development for a long time.

Wow, since 2016 - 8 years.

When will it be finished and become the next Safari?
Safari takes improvements from Technology Preview all the time. It isn’t a separate product, instead the results of the preview are implemented in Safari every now and then.
Score: 2 Votes (Like | Disagree)
Adora Avatar
8 months ago
Finally working again with the latest macOS Betas.

But still the same version 18.0 with just a higher build number.

Isn't TP normally not a newer version? There is a Beta of Safari 18 for Sonoma and Ventura so the TP should be something newer. But maybe this changes later. I wasn't on macOS beta for a while before Sequoia.

The first DB doesn't even had a launch-able version. And in DB3 it was unusable since release of this version.


Edit: Also feels snappier than standard Safari. ?
Score: 1 Votes (Like | Disagree)