Apple Releases Safari Technology Preview 73 With Bug Fixes and Performance Improvements - MacRumors
Skip to Content

Apple Releases Safari Technology Preview 73 With Bug Fixes and Performance Improvements

by

safaripreviewiconApple 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 release 73 includes bug fixes and performance improvements for Web API, JavaScript, CSS, Media, WebRTC, Web Animations, Web Authentication, WebGPU, and Web Inspector.

The new Safari Technology Preview update is available for both macOS High Sierra and macOS Mojave, the newest version of the Mac operating system that was released to the public in September 2018.

The Safari Technology Preview update is available through the Software Update mechanism in the Mac App Store 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.

Tag: Safari Technology Preview

Top Rated Comments

Pateeke Avatar
Pateeke
100 months ago
I think you're confusing with Microsoft. They gave up Edge development and went Chromium.

https://techcrunch.com/2018/12/06/microsoft-edge-goes-chromium-and-macos/
Score: 8 Votes (Like | Disagree)
lJoSquaredl Avatar
lJoSquaredl
100 months ago
I wish Safari didn’t freeze for a second or two everytime I swiped back, would make it much more tolerable to use.
Score: 3 Votes (Like | Disagree)
Westside guy Avatar
Westside guy
100 months ago
Does Apple still work on Safari? I thought they gave it up.
The unfortunate state of affairs now is that the only two significant web rendering engines being developed are WebKit and Blink, which is a fork of WebKit. Both Edge and Firefox will soon be relying on Chrome's Blink renderer.

Monocultures are bad. It's not hard to imagine a scenario where a major security bug is found which could affect basically 100% of web browsers.
Score: 3 Votes (Like | Disagree)
dan9700 Avatar
dan9700
100 months ago
Yeah, finally, I can't believe Apple allowed this function to be so screwed on Safari. I mean, scrolling through a video on YouTube is one of the first things a customer is going to try on its new device. I tried several times to scroll through a YouTube video with the TouchBar and it was impossible. I can't believe this took them two years to be fixed.
Now we need 4k codec on safari
Score: 3 Votes (Like | Disagree)
mdriftmeyer Avatar
mdriftmeyer
100 months ago
Does Apple still work on Safari? I thought they gave it up.
The inventors and 90% contributors aren't giving up on WebKit 2 that is integral to iOS, tvOS, macOS and watchOS.

WebGPU getting Metal shading sure is going to be nice once it's fully implemented. WebRTC updates are welcome as well
Score: 2 Votes (Like | Disagree)
fokmik Avatar
fokmik
100 months ago
"

* Fixed scrubbing video with Touch Bar on YouTube to prevent video playback freezing"
*
* Fixed stuttering audio in YouTube when the page changes visibility



Finally
Score: 2 Votes (Like | Disagree)
Read All Comments

Popular Stories

iPhone Handoff iOS 27 Feature

T-Mobile to Charge $5 a Month for iOS 27 iPhone Handoff

Thursday September 10, 2026 3:58 pm PDT by
T-Mobile will charge customers $5 per month to use iPhone Handoff, an e-SIM feature that allows the same phone number to be used on two separate iPhones. iPhone Handoff requires carrier support, and at launch, only T-Mobile users in the U.S. and Deutsche Telekom users in Germany will be able to use it. T-Mobile says customers can use their number across two compatible iPhone models and...
Read Full Article • 152 comments
iOS 27 Feature Dark

Apple Announces iOS 27 Release Date

Wednesday September 9, 2026 10:46 am PDT by
At its event today unveiling the iPhone 18 Pro, AirPods 5, Apple Watch Series 12, and more, Apple announced that iOS 27 will be released later this month. iOS 27 has already been available as a developer beta since June and as a public beta since July, and Apple today said that the update will be released for all users with a compatible iPhone model on Monday, September 14. iOS 27 is...
Read Full Article • 40 comments
iphone duo

IMAX Reacts to iPhone Duo's 1:1.4 Aspect Ratio Displays

Friday September 11, 2026 4:42 am PDT by
Production theater company IMAX has responded in a mixed way to Apple's embrace of a 1:1.4 aspect ratio on the iPhone Duo's inner and outer displays. The boxier ratio happens to be very close to the classic "full-frame" IMAX 1.43:1 aspect ratio, which comes from the geometry of the company's original 15-perforation/70mm film system. In response to an X post from someone wondering if we'll see...
Read Full Article • 74 comments