Apple Releases Safari Technology Preview 165 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 release 165 includes bug fixes and performance improvements for Web Inspector, CSS, JavaScript, Layout, Media, Forms, Web Animations, WebCrypto, WebGL, Loading, Web API, Accessibility, and Web Extensions.

The current ‌Safari Technology Preview‌ release is version 16.4 and is compatible with machines running macOS Ventura and macOS Monterey.

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

iOS 26

Everything New in iOS 26.1 Beta 1

Monday September 22, 2025 12:44 pm PDT by
Apple released the first beta of iOS 26.1 today, just a week after launching iOS 26. iOS 26.1 mainly adds new languages to Apple Intelligence, but there are a few other features that are worth knowing about. New Apple Intelligence Languages Apple Intelligence is now available in Danish, Dutch, Norwegian, Portuguese (Portugal), Swedish, Turkish, Chinese (Traditional), and Vietnamese. AirPo...
apple tv 4k new orange

Next Apple TV Expected to Launch This Year With These New Features

Monday September 22, 2025 10:00 am PDT by
The next Apple TV is expected to be released later this year, and a handful of new features and changes have been rumored for the device. Below, we recap what to expect from the next Apple TV, according to rumors. Likely Features N1 Chip With Wi-Fi 7 Last year, Bloomberg's Mark Gurman said the next Apple TV would be equipped with Apple's own combined Wi-Fi and Bluetooth chip, which is...
Apple Intelligence General Feature 2

iOS 26.1 Adds New Apple Intelligence Languages and Expands AirPods Live Translation

Monday September 22, 2025 11:15 am PDT by
With iOS 26.1, Apple Intelligence is gaining support for additional languages, including Danish, Dutch, Norwegian, Portuguese (Portugal), Swedish, Turkish, Chinese (Traditional), and Vietnamese. Apple announced plans to expand the languages that can be used with Apple Intelligence last year, and now the added language support is here. Apple Intelligence is now available in the following...
iPhone 17 Pro and Air N1 Feature

Some iPhone 17, iPhone 17 Pro, and iPhone Air Users Experiencing Intermittent Wi-Fi Issue

Monday September 22, 2025 8:44 am PDT by
Apple's latest iPhone models launched on Friday, and some early adopters of the devices are experiencing intermittent Wi-Fi issues. Affected customers say Wi-Fi connectivity periodically cuts out on the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air, with hundreds of comments about the issue posted across the MacRumors Forums, Reddit, and the Apple Support Community over the...
iPhone 17 Pro USB C Port

iPhone 17 Pro Max's USB-C Charging Speeds Tested With Apple Chargers

Monday September 22, 2025 7:29 am PDT by
The website ChargerLAB has tested the iPhone 17 Pro Max's USB-C charging speeds with a variety of Apple's chargers, from 18W to 140W. The device reached a peak charging speed of around 36W with the following Apple chargers:40W Dynamic Power Adapter with 60W Max 61W USB-C Power Adapter 67W USB-C Power Adapter 70W USB-C Power Adapter 96W USB-C Power Adapter 140W USB-C Power AdapterFor...
Apple Foldable Thumb

Foldable iPhone Like 'Two Titanium iPhone Airs' Joined at the Hinge

Monday September 22, 2025 2:16 am PDT by
Next year's rumored foldable iPhone will showcase an ultra-thin design resembling "two titanium iPhone Airs side-by-side," according to Bloomberg's Mark Gurman. Writing in the Q&A section of his latest Power On newsletter, Gurman says Apple's first foldable device will be "super thin and a design achievement," combining Apple's thinnest iPhone form factor with cutting-edge folding...
iPhone 17 Pro and Air Feature

Two iPhone 17 Pro and iPhone Air Colors Appear to Scratch More Easily

Friday September 19, 2025 10:02 am PDT by
As reported by Bloomberg today, some of the new iPhone 17 Pro and iPhone Air models on display at Apple Stores today are already scratched and scuffed. French blog Consomac also reported on this topic. The scratches appear to be most prominent on models with darker finishes, including the iPhone 17 Pro and Pro Max in Deep Blue, and the iPhone Air in Space Black. Images Credit: Consoma ...
iPhone 17 Pro Colors

Skipped the iPhone 17 Pro? Here's What is Rumored for iPhone 18 Pro

Tuesday September 23, 2025 8:55 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are still a year away, there are already a few rumors about the devices that offer an early look ahead. Below, we have recapped some of the early iPhone 18 Pro rumors so far. This story was published previously, and it has been updated to reflect the latest rumors. Many early rumors prove to be true, but nothing is confirmed yet, and Apple's...
iOS 26

Apple Seeds First Betas of iOS 26.1, iPadOS 26.1, and macOS Tahoe 26.1

Monday September 22, 2025 10:05 am PDT by
Apple today provided developers with the first betas of upcoming iOS 26.1, iPadOS 26.1, macOS Tahoe 26.1, tvOS 26.1, watchOS 26.1, and visionOS 26.1 updates for testing purposes. The new betas are the first updates to the iOS, iPadOS, macOS 26, watchOS, tvOS, and visionOS releases that came out last week. The new betas can be downloaded from the Settings app on a compatible device by going...

Top Rated Comments

MisterK Avatar
33 months ago
Wasn't there supposed to be some new Safari extension framework that was more interoperable with Chrome extensions? I recall something being said about that a while back. Safari extensions are both weirdly rare and hard to search through.
Score: 3 Votes (Like | Disagree)
MauiPa Avatar
33 months ago

Happy camper with Edge. Also have STP installed and try it from time to time, what a joke of browser. You will be blown away by the "less worse" desing and features of Edge. Collections, bookmark management, strat page with my favorite sites is BASIC and Apple removed that years ago and made Safari a lackluster product that is brings no joy in using the internet...
Just kill it, Apple. It is pathetic since many years ago and there is no indication that a capable human is designing the user experience in Safari.
Edge sucks, IMHO. Tried it, hated it. Plus it is a lot slower
Score: 3 Votes (Like | Disagree)
tgt Avatar
33 months ago

Wasn't there supposed to be some new Safari extension framework that was more interoperable with Chrome extensions? I recall something being said about that a while back. Safari extensions are both weirdly rare and hard to search through.
There is ('https://developer.apple.com/documentation/safariservices/safari_web_extensions'). It was introduced at WWDC 2020 and there's a tool for automatically(-ish) converting Chrome extensions. I don't think Safari supports everything Chrome does, which prevents µBlock, for example. They may be limited for privacy reasons, as Apple usually claims, or maybe they're just not a priority. You need to pay for the developer program and I'd imagine that puts off a lot of extension developers. See https://www.macrumors.com/2020/08/28/safari-web-extensions/.
Score: 2 Votes (Like | Disagree)
MrNomNoms Avatar
33 months ago

Wasn't there supposed to be some new Safari extension framework that was more interoperable with Chrome extensions? I recall something being said about that a while back. Safari extensions are both weirdly rare and hard to search through.
It's a work in progress: https://github.com/w3c/webextensions

Basically they're working through the Webextensions API with the focus being on harmonising and documenting then once done the respective browser engineers implement it with some browsers implementing it a lot quicker than others depending on how much legacy code can be refactored and bought into compliance with the API.
Score: 2 Votes (Like | Disagree)
Sir_Macs_A_Lot Avatar
33 months ago
Really wish Apple would continue to support Safari in older Macs. While I do use other browsers at times...I do enjoy the convenience of continuing of a website I had open on another Apple devices.
Score: 2 Votes (Like | Disagree)
MauiPa Avatar
33 months ago

How many bugs CAN one put in a program? This is the how manyest bugfix update?
Hahaha. so funny. NO, STP is a test bed of new technologies, these are not bug fix updates as you say, but new things being tried. in terms everyone can understand it is like Safari Beta
Score: 2 Votes (Like | Disagree)