safaripreviewiconApple today released a new update for Safari Technology Preview, the experimental browser Apple first introduced in March of 2016. Apple designed the Safari Technology Preview to test features that may be introduced into future release versions of Safari.

Safari Technology Preview release 38 includes fixes and improvements for Fetch API, Web Payments, CSS, Web API, Media, Apple Pay, Web Inspector, and WebDriver. Today's update also enables the Beacon API by default and implements new Beacon API features.

With Safari 11 now available to developers through the macOS High Sierra beta, Apple is providing two versions of Safari Technology Preview, one for macOS Sierra users and one for those using macOS High Sierra.

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

Susurs Avatar
Susurs
97 months ago
What is Beacon?
Score: 3 Votes (Like | Disagree)
Erdbeertorte Avatar
Erdbeertorte
97 months ago
I have a question for you folks who are running this preview, now that the beacon api has been enabled.

Is there an option/setting to turn that off?
Normally everything is unchecked in Develop/Experimental Features, if you install it for the first time except for the Beacon API this time.
It seems there are four new features because I always check everything. Even though I don't have any clue what all that means. ;)




[doublepost=1503519194][/doublepost]
Interesting... this is the first time the Safari Tech Preview update hasn't shown up for me in the App Store immediately after I read the article about it here on MacRumors. Hmm. o_O
It hasn't shown up there for me too since at least the last three versions. I Just wanted to ask if anyone else experienced this.

Attachment Image

Attachment Image
Score: 2 Votes (Like | Disagree)
JaguarF Avatar
JaguarF
97 months ago
As was pointed out to me recently, if you enable everything under Develop > Experimental, it's 464. (On Sierra.)
Really? I get a score of 474 with all the experimental features activated.

Attachment Image
Score: 2 Votes (Like | Disagree)
jimothyGator Avatar
jimothyGator
97 months ago
What is Beacon?
I wondered this, too. I found this documentation ('https://developer.mozilla.org/en-US/docs/Web/API/Beacon_API'). The "Why Use Beacon?" section gives an example use case.
Score: 2 Votes (Like | Disagree)
Erdbeertorte Avatar
Erdbeertorte
97 months ago
Does Preview version support Youtube 4k already or still nothing ?
Seems to work for some videos I tried now. Maybe the other ones lied about being 4K or need Flash what Safari seems only support for very old and/or long videos that are Flash only.

A few days ago I checked it with the previous version and found nothing higher than 1440p.




Edit: Forgot to prove that it's really Safari.



Attachment Image

Attachment Image
Score: 2 Votes (Like | Disagree)
mdriftmeyer Avatar
mdriftmeyer
97 months ago
Wait really?
Not really. Preview 38 459/555.

Preview 38 is Safari 11.1 listed string on macOS 10.12.

Interestingly, Safari 11 beta 6 that can be downloaded for El Captian and Sierra is 455/555. The difference is no beacon enabled yet and Subresource integrity under the Security tests.

By comparison: Safari 10.2 currently for macOS 10.12 is 419/555.

WebGL 2 is currently enabled in 10.2 but going under additional testing for 11 (beta 6) and 11.1 (Preview 38)

Safari 10.2 lacks Peer to Peer 0/38 points, Scripting 0/3 for Modules.k

Outside of shoring up Forms, Peer-to-Peer Media Stream recorder and Screen Capture, Writable streams, Audio speech recognition, and possibly Device motion/orientation with WebVR, plus the Web Animations API nothing new features are untouched.

What's always ongoing will be future web standards that are yet to be flushed out like WebGPU (https://gpuweb.github.io/admin/cg-charter.html), updates to current HTML 5.x (5.2/5.3 RC) [if necessary], CSS 1/2/3 full support(https://www.w3.org/Style/CSS/) and possibly SVG 1.2/2.x/MathML, etc.

Nothing drastically is missing, unless you think having Forms support and web applications are a do or die scenario between Safari and Chrome.
Score: 1 Votes (Like | Disagree)
Read All Comments

Popular Stories

iOS 18

Apple Expected to Release iOS 18.3 Next Week With These New Features

Thursday January 23, 2025 6:41 am PST by
iOS 18.3 should be released to the public next week, following beta testing since mid-December. While the software update is a relatively minor one, it still includes a handful of new features, changes, and bug fixes for iPhones. Below, we recap everything new in iOS 18.3. Notification Summary Changes Examples of inaccurate Apple Intelligence notification summaries Apple Intelligence...
Read Full Article • 29 comments
iOS 18

5 New Things Your iPhone Can Do in iOS 18.3

Friday January 24, 2025 1:55 am PST by
Apple is set to release iOS 18.3 next week, bringing further refinements to Apple Intelligence features, a couple of neat new capabilities to iPhone 15 Pro and iPhone 16 devices, and bug fixes. While not quite as packed with new features as Apple's preceding iOS 18 point releases, iOS 18.3 still introduces capabilities that aim to make your iPhone smarter and more intuitive. Below, we've...
Read Full Article • 26 comments
Generic iOS 18

iOS 18.4 Beta Coming Soon With These New Features for Your iPhone

Friday January 24, 2025 8:16 am PST by
iOS 18.3 is expected to be widely released next week, and that means the first iOS 18.4 beta for iPhones should be just around the corner. Apple has previously implied that iOS 18.4 will be released in April, as that is when it promised to make Apple Intelligence available in even more languages. Below, we outline what to expect from iOS 18.4 so far. Apple Intelligence for Siri Siri ...
Read Full Article • 37 comments
Apple Pay Walmart Feature

Walmart Stands Firm on Why It Doesn't Accept Apple Pay in the U.S.

Thursday January 23, 2025 7:32 am PST by
Walmart still does not accept Apple Pay or other NFC payments at its more than 4,600 stores across the U.S., and it stood firm on its reasoning for that today. A spokesperson for Walmart today informed MacRumors that its position on contactless payments has not changed since we last reached out about the matter in 2022. The big-box retailer said it remains focused on its own convenient...
Read Full Article • 362 comments
apple tv 4k new orange

New Apple TV Launching This Year With These New Features

Wednesday January 22, 2025 6:01 pm PST by
A new Apple TV is expected to be released later this year. In this article, we recap rumored features and changes for the device. The next Apple TV will be equipped with Apple's own combined Wi-Fi and Bluetooth chip, according to Bloomberg's Mark Gurman. He said the chip supports Wi-Fi 6E, which would be an upgrade over the current Apple TV's standard Wi-Fi 6 support. Wi-Fi 6E extends the...
Read Full Article
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...
Read Full Article • 52 comments
iPhone 17 Pro Dual Tone Horizontal Single Feature

Kuo: iPhone 17 Models Won't Have Smaller Dynamic Island

Friday January 24, 2025 9:09 am PST by
The upcoming iPhone 17 models that Apple plans to release this year will not feature a smaller Dynamic Island, Apple analyst Ming-Chi Kuo said today. On social media, he said that he is expecting the size of the Dynamic Island to remain "largely unchanged" across the iPhone 17 lineup. His statement is contrary to prior rumors that we've heard about planned changes for the iPhone 17 models. ...
Read Full Article • 79 comments
iPhone 16 Apple Store Levels

Gurman: Apple Stores Receiving 'Merchandise' Updates Next Week

Saturday January 25, 2025 5:07 pm PST by
Apple's retail stores will be rolling out "merchandise/floor marketing updates" next week, according to Bloomberg's Mark Gurman. Gurman did not explicitly say if the store updates are related to any upcoming product announcements, but he did mention that next week is around the time that Apple rolls out its annual Black Unity watch band for the Apple Watch. In each of the past four years, ...
Read Full Article • 32 comments
apple power beats pro 2

Apple's First Product Announcement of 2025 is Imminent

Thursday January 23, 2025 2:48 pm PST by
It's also time for Apple's first product announcement of the year. Last year, Apple said it would be launching Powerbeats Pro 2 in 2025, and the wireless earbuds are expected to launch very soon. Powerbeats Pro 2 images found in iOS 18 code In his Power On newsletter last weekend, Bloomberg's Mark Gurman said the Powerbeats Pro 2 are "due imminently." In addition to Apple filing the...
Read Full Article