Apple Releases Safari Technology Preview 152 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 152 includes bug fixes and performance improvements for Web Inspector, CSS, Accessibility, Rendering, JavaScript, and Web API.

The current ‌Safari Technology Preview‌ release is built on the Safari 16 update and it includes support for feature coming in macOS Ventura such as Live Text, Passkeys, Web Extension improvements, and more.

The new build of ‌Safari Technology Preview‌ is compatible with machines running macOS 13 Ventura, unlike prior versions of ‌Safari Technology Preview‌, but it no longer works with macOS Big Sur.

The ‌Safari Technology Preview‌ update is available through the Software Update mechanism in System Preferences 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

iPhone 17 Air Size Feature

'iPhone 17 Air' With Rear Camera Bar Allegedly Shown in Leaked Photo

Tuesday January 21, 2025 12:46 pm PST by
A leaker known as "Majin Bu" today shared an alleged image of a component for the rumored, ultra-thin "iPhone 17 Air" model. The blurry, pixelated image shows a pair of rear iPhone shells with a pill-shaped, raised camera bar along the top. On the left side of the bar, there is a circular cutout that appears to be for a single rear camera. On the right side of the bar, there appears to be an ...
Generic iOS 19 Feature Mock Light

iOS 19 Leak Reveals All-New Design

Friday January 17, 2025 2:42 pm PST by
iOS 19 is still around six months away from being announced, but a new leak has allegedly revealed a completely redesigned Camera app. Based on footage it obtained, YouTube channel Front Page Tech shared a video showing what the new Camera app will apparently look like, with the key change being translucent menus for camera controls. Overall, the design of these menus looks similar to...
iOS 18

Here Are Apple's Full Release Notes for iOS 18.3

Tuesday January 21, 2025 4:31 pm PST by
Apple provided developers and public beta testers with the release candidate version of iOS 18.3 today, and with it comes release notes confirming what's new. While we knew about several of the features that are in the update, there are some lesser known tweaks and bug fixes. The update adds new Visual Intelligence features for iPhone 16 models, it tweaks Notification summaries on all...
iPhone SE Dynamic Island Majin Bu

iPhone SE 4 Leak Shows Dynamic Island, Casts Doubt on Rumored 'iPhone 16E' Name

Monday January 20, 2025 9:01 am PST by
A new iPhone SE is widely rumored to launch this year, and the device has potentially been confirmed today by known leaker Evan Blass. In a private social media post, Blass shared an image of what appears to be source code mentioning an iPhone SE (4th Gen), which casts doubt on the alternative "iPhone 16E" name rumored for the device. However, the name in the source code could be a...
2024 App Store Awards

Apple Explains Why It Removed TikTok From the App Store in the U.S.

Sunday January 19, 2025 6:58 am PST by
Apple on late Saturday removed TikTok from the App Store in the U.S., and it has now explained why it was required to take this action. Last year, the U.S. passed a law that required Chinese company ByteDance to divest its ownership of TikTok due to potential national security risks, or else the platform would be banned. That law went into effect today, and companies like Apple and Google...
airtag 4 pack blue

AirTag 2 Launching This Year With These 3 New Features

Sunday January 19, 2025 8:11 am PST by
After a four-year wait, a new AirTag is finally expected to launch in 2025. Below, we recap rumored upgrades for the accessory. A few months ago, Bloomberg's Mark Gurman said Apple was aiming to release the AirTag 2 around the middle of 2025. While he did not offer a more specific timeframe, that means the AirTag 2 could be announced by the end of June. The original AirTag was announced...
truecaller

Truecaller iOS Update Rolls Out Real-Time Caller ID Support

Wednesday January 22, 2025 2:07 am PST by
Popular caller ID app Truecaller is rolling out an update that brings real-time caller ID support to its iOS subscribers. Apple introduced Live Caller ID Lookup in iOS 18, allowing third-party caller ID apps to securely retrieve information about a caller from their servers, hence today's Truecaller update. iPhone users can enable the Live Caller ID Lookup feature by going to Settings ➝ ...
ipad pro 2024

New iPad Pro Reportedly Launching This Year

Tuesday January 21, 2025 6:40 am PST by
Apple plans to release at least one new iPad Pro model this year, according to a supplier-focused report today from Korean website The Elec. It is likely that the 11-inch and 13-inch iPad Pro models would be updated simultaneously. After receiving an OLED display last year, the report said the iPad Pro will receive only "minor" changes this year. Overall, the next iPad Pro is expected to...
iOS 19 Roundup Feature

iOS 19 Rumored to Be Compatible With These iPhones

Saturday January 18, 2025 10:28 am PST by
iOS 19 will not drop support for any iPhone models, according to French website iPhoneSoft.fr. The report cited a source who said iOS 19 will be compatible with any iPhone that can run iOS 18, which would mean the following models: iPhone 16 iPhone 16 Plus iPhone 16 Pro iPhone 16 Pro Max iPhone 15 iPhone 15 Plus iPhone 15 Pro iPhone 15 Pro Max iPhone 14 iPhon...

Top Rated Comments

redpandadev Avatar
32 months ago

I love how they use this to test all but bug fixes. I have no idea how this works (i'm only 14) but if you're going to make an app like this to test new features then actually test new features
The idea behind Safari Tech Preview is to test web features. This is distinctly different from app features. New web features are primarily for developers - web developers specifically. They are rarely if ever user-oriented - at least not until the feature become widely adopted across mainstream websites.

They maintain a list of relevant web features here: https://webkit.org/status/
The latest release notes are here: https://webkit.org/blog/13137/release-notes-for-safari-technology-preview-152/

If you are looking for bug fixes and new features for Safari itself, they are rolled out with OS updates (macOS, iOS, etc) and you can experience those early by joining the Public Beta program for the OSes.

In fairness, Safari Tech Preview would be more accurately named if it were named "WebKit Tech Preview" instead.
Score: 4 Votes (Like | Disagree)
D-ConYT Avatar
32 months ago
I love how they use this to test all but bug fixes. I have no idea how this works (i'm only 14) but if you're going to make an app like this to test new features then actually test new features
Score: 3 Votes (Like | Disagree)
Deedeekay Avatar
32 months ago
I want to like Safari but every new version I give it a go and bump up against the intolerable limits of extensions. The entire extension ecosystem is FUBAR and just not worth any of the questionable ‘benefits’ of the browser.
Score: 2 Votes (Like | Disagree)
George Dawes Avatar
32 months ago
Good grief , how many more bugs are there to squash ?
Score: 2 Votes (Like | Disagree)
IllinoisCorn Avatar
32 months ago

I love how they use this to test all but bug fixes. I have no idea how this works (i'm only 14) but if you're going to make an app like this to test new features then actually test new features
There's a developer menu where you can, you guessed it, test new features.
Score: 1 Votes (Like | Disagree)
architect1337 Avatar
32 months ago
Have they released a decent ad-blocker for Safari yet? After stopping ublock origin, I use Edge on the Mac and see virtually no ads. Watching similar pages rendering in Safari is a completely different world.
Score: 1 Votes (Like | Disagree)