Apple Releases Safari Technology Preview 221 With Bug Fixes and Performance Improvements

[MacRumors]

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 221 includes fixes and updates for Accessibility, Forms, JavaScript, Media, PDF, Rendering, Web API, Web Inspector, and WebRTC.

The current Safari Technology Preview release is compatible with machines running macOS Sequoia and macOS Tahoe, the newest version of macOS that's set to launch this later this year.

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 from Apple’s website. Complete 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 it is designed for developers, it does not require a developer account to download and use.

Article Link: Apple Releases Safari Technology Preview 221 With Bug Fixes and Performance Improvements

 

[Sheepish-Lord]

Running this on macOS 26 and trying to clear the history freezes it every time.

 

[It’s always something]

Do these things ever make their way to iOS/iPadOS? If so, I think Safari should be disentangled from OS updates so that we can enjoy these new features on a more regular basis.

 

[Sheepish-Lord]

Do these things ever make their way to iOS/iPadOS? If so, I think Safari should be disentangled from OS updates so that we can enjoy these new features on a more regular basis.

They do not

 

[nortonandreev]

Do these things ever make their way to iOS/iPadOS? If so, I think Safari should be disentangled from OS updates so that we can enjoy these new features on a more regular basis.

Which things you mean?

 

[ypl]

Will they fix broken profiles feature or is it going to annoy me forever? So many things are wrong about the feature. Mozilla managed to implement containers feature so it "just works". Those were the days when it was Apple's tagline.

 

[lkrupp]

Running this on macOS 26 and trying to clear the history freezes it every time.

So what? When you installed the beta you agreed to submit reports about bugs like this. Have you followed through with your agreement to do so? Here is not the place to do this.

 

[It’s always something]

Which things you mean?

I mean the new features in these Safari previews.

 

[nortonandreev]

I mean the new features in these Safari previews.

Yes, they are made available. The core, WebKit, is the same for macOS and iOS/iPadOS.

 

[Adora]

I mean the new features in these Safari previews.

There are always new experimental features in Safari's advanced settings that you can turn on. I just saw now it's called "WebKit Feature Flags".

The scroll bar in the last screenshot indicates how much more there is...