Apple Releases Safari Technology Preview 73 With Bug Fixes and Performance Improvements - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
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.

Top Rated Comments

Pateeke Avatar
98 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
98 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
98 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
98 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
98 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
98 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)

Popular Stories

Safari Technology Preview Updated Feature 1

Apple Releases Safari Technology Preview 247 With MCP Server for AI Agent Integration

Wednesday July 1, 2026 2:11 pm PDT by
Apple today released a new update for Safari Technology Preview, the experimental browser that was first introduced in March 2016. Apple designed Safari Technology Preview to allow users to test features that are planned for future release versions of the Safari browser. Safari Technology Preview 247 adds the Safari Model Context Protocol (MCP) server meant to speed up web development and...
iPhone 18 Pro Deep Red Feature

iPhone 18 Pro Launching in Two Months With These 12 New Features

Friday July 17, 2026 10:39 am PDT by
It is now mid-July, and that means the iPhone 18 Pro and iPhone 18 Pro Max are now just two months away. The devices are expected to look similar to the iPhone 17 Pro and iPhone 17 Pro Max, but there will still be many year-over-year changes, with rumored features including a smaller Dynamic Island, 5G via satellite, and more. Apple is expected to unveil the iPhone 18 Pro, iPhone 18 Pro Max, ...
iPhone 18 Pro and Pro Max Feature

'Apple Upgrade' Program Reportedly Launching Next Week

Tuesday July 21, 2026 8:30 am PDT by
Apple and Klarna are partnering on a new "Apple Upgrade" program set to launch in the U.S. on Tuesday, July 28, according to Bloomberg's Mark Gurman. The program will allow you to finance most iPhone, iPad, Mac, and Apple Watch models, with a 24-month term for iPhones and Apple Watches and a 36-month term for iPads and Macs. Customers will be able to pay off the device early during the term, ...