safaripreviewiconApple today released a new update for Safari Technology Preview, the experimental browser Apple first introduced one year ago 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 40 includes fixes and improvements for JavaScript, FileSystem Entry API, Fetch API, Accessibility, Web API, CSS, CSS Grid, Web Inspector, Media, Rendering, and WebGL.

With Safari 11 now available 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

Strelok Avatar
Strelok
52 months ago
Pls allow 4K in YouTube.
Score: 2 Votes (Like | Disagree)
diegov12 Avatar
diegov12
52 months ago
It is, safari doesn’t support VP9. Every other browser except internet explorer support it.
Or youtube can support H.265 which is supported by most hardware already…
Score: 1 Votes (Like | Disagree)
JRoDDz Avatar
JRoDDz
52 months ago
Yes, but is it snappier?
Score: 1 Votes (Like | Disagree)
GastonM Avatar
GastonM
52 months ago
479 with all the Experimental Features enabled on macOS Sierra 10.12.6.
Score: 1 Votes (Like | Disagree)
Read All Comments

Top Stories

iphone 12 colors 2021

iPhone 12 Colors: Deciding on The Right Color

Thursday November 5, 2020 8:35 am PST by
The iPhone 12 and iPhone 12 Pro arrived last October in a range of color options, with entirely new hues available on both devices, as well as some popular classics. The 12 and 12 Pro have different color choices, so if you have your heart set on a particular shade, you might not be able to get your preferred model in that color. iPhone 12 mini and iPhone 12 The iPhone 12 mini and iPhone 12...
Read Full Article
original iphone

Phil Schiller Says iPhone Was 'Earth-Shattering' Ten Years Ago and Remains 'Unmatched' Today

Monday January 9, 2017 7:15 am PST by
To commemorate the tenth anniversary of the iPhone, Apple marketing chief Phil Schiller sat down with tech journalist Steven Levy for a wide-ranging interview about the smartphone's past, present, and future. The report first reflects upon the iPhone's lack of support for third-party apps in its first year. The argument inside Apple was split between whether the iPhone should be a closed...
Read Full Article • 424 comments
iCloud General Feature

iCloud+'s New Custom Email Domain Feature Now Available in Beta

Wednesday August 25, 2021 7:48 am PDT by
Starting with iOS 15, iPadOS 15, and macOS Monterey, users with a paid iCloud+ storage plan can personalize their iCloud email address with a custom domain name, such as johnny@appleseed.com, and the feature is now available in beta. iCloud+ subscribers interested in setting up a custom email domain can visit the beta.icloud.com website, select "Account Settings" under their name, and select ...
Read Full Article • 895 comments
iPhone 13 Dummy Thumbnail 2

Full iPhone 13 Feature Breakdown: Everything Rumors Say We Can Expect

Tuesday August 31, 2021 7:50 am PDT by
With the launch of Apple's iPhone 13 lineup believed to be just a few weeks away, we have compiled all of the coherent rumors from our coverage over the past year to build a full picture of the features and upgrades coming to the company's new smartphones. For clarity, only explicit improvements, upgrades, and new features compared to the iPhone 12 lineup are listed. It is worth noting that...
Read Full Article • 97 comments
iPhone 13 Dummy Thumbnail 2

Kuo: iPhone 13 to Feature LEO Satellite Communications to Make Calls and Texts Without Cellular Coverage

Sunday August 29, 2021 7:39 am PDT by
The iPhone 13 will feature low earth orbit (LEO) satellite communication connectivity to allow users to make calls and send messages in areas without 4G or 5G coverage, according to the reliable analyst Ming-Chi Kuo. In a note to investors, seen by MacRumors, Kuo explained that the iPhone 13 lineup will feature hardware that is able to connect to LEO satellites. If enabled with the relevant...
Read Full Article • 295 comments
macbook air deals

Deals: Amazon Drops Price of 256GB M1 MacBook Air to New Low of $849.99 ($149 Off)

Friday August 27, 2021 6:16 am PDT by
Amazon today introduced new low prices on the M1 MacBook Air for both 256GB and 512GB storage options. To start, you can get the 256GB model for $849.99, down from an original price of $999.00. Note: MacRumors is an affiliate partner with Amazon. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running. Only Silver and Gold are...
Read Full Article • 28 comments
maxresdefault

New MacBook Pro Models Coming at WWDC, Suggests Leaker

Monday May 24, 2021 1:27 pm PDT by
New MacBook Pro models are coming at WWDC, according to leaker Jon Prosser who has a mixed track record when it comes to predicting Apple's plans. Subscribe to the MacRumors YouTube channel for more videos. Prosser provided no additional information, but there are new 14 and 16-inch MacBook Pro models in the works. The new MacBook Pros will feature the most radical redesign to the MacBook Pro ...
Read Full Article • 448 comments
calculatorapp

iOS 11 Bug: Typing 1+2+3 Quickly in the Calculator App Won't Get You 6

Tuesday October 24, 2017 2:03 pm PDT by
A bug in the built-in Calculator app in iOS 11 is getting some major attention this week, despite the fact that it's been around since iOS 11 was in beta testing. At issue is a calculator animation that causes some symbols to be ignored when calculations are entered in rapid succession. You can try it for yourself: Type 1+2+3 and then the equals sign into the Calculator app quickly. Due to...
Read Full Article • 346 comments
maxresdefault

'Being James Bond' Retrospective Will Be Free to Watch Through Apple TV App

Tuesday August 31, 2021 8:25 am PDT by
Update 9/7/21: "Being James Bond" is now available to watch through the Apple TV app. Ahead of the theatrical release of James Bond film "No Time To Die" on October 8 in the United States, a 45-minute retrospective titled "Being James Bond" will be available to watch for free through the Apple TV app, according to Deadline. The story from MGM is said to feature Daniel Craig reflecting ...
Read Full Article • 45 comments
ted lasso notchless phone

No, That Notchless iPhone Spotted in 'Ted Lasso' Isn't the iPhone 13

Tuesday August 31, 2021 2:15 am PDT by
Recent sightings of a notchless iPhone in highly popular Apple TV+ comedy "Ted Lasso" have led to sensational headlines suggesting this is a canny bit of product placement on Apple's part and that the iPhone 13 will be notchless. In actuality – and this could go without saying – the phone in question is very likely just showing a poorly superimposed display added in post-production. Notchless ...
Read Full Article • 52 comments