WebKit Features in Safari 17.5
Happy May! It’s time for another release of Safari — our third significant update of 2024. With just a month until WWDC24 and the unveiling of what’s coming later this year, we are happy to get these 7 features and 22 bug fixes into the hands of your users today. CSS There are several exciting new CSS features in Safari 17.5, including text-wrap: balance, the light-dark() color function, and @star
Optimizing WebKit & Safari for Speedometer 3.0
The introduction of Speedometer 3.0 is a major step forward in making the web faster for all, and allowing Web developers to make websites and web apps that were not previously possible. In this article, we explore ways the WebKit team made performance optimizations in WebKit and Safari based on the Speedometer 3.0 benchmark. In order to make these improvements, we made an extensive use of our per
Speedometer 3.0: The Best Way Yet to Measure Browser Performance
As announced on browserbench.org today, in collaboration with other browser engine developers, Apple’s WebKit team is excited to introduce Speedometer 3.0, a major update that better reflects the Web of today. It’s built together by the developers of all major browser engines: Blink, Gecko, and WebKit with hundreds of contributions from companies like Apple, Google, Intel, Microsoft, and Mozilla.
WebKit Features in Safari 17.4
Just like Safari 15.4 and Safari 16.4, this March’s release of Safari 17.4 is a significant one for web developers. We’re proud to announce another 46 features and 146 bug fixes. You can experience Safari 17.4 on iOS 17.4, iPadOS 17.4, macOS Sonoma 14.4, macOS Ventura, macOS Monterey, and in visionOS 1.1. Architectural improvements It’s always exciting to ship new features that you can use while b
CSS Nesting and the Cascade
You might have noticed that Safari Technology Preview 179 includes an update to CSS Nesting that adds support for the new “relaxed parsing behavior”. What does this mean? It means you no longer have to worry about whether or not each nested selector starts with a symbol. It means that now nested CSS like this will work just fine: article { h1 { font-size: 1.8rem; } p { font-size: 1.2rem; } } (If y
WebKit Features in Safari 17.0
Sep 18, 2023 by Jen Simmons and the Safari / WebKit Team Today’s the day for Safari 17.0. It’s now available for iOS 17 and iPadOS 17. [Update September 26th] And now, Safari 17.0 is available for macOS Ventura, and macOS Monterey, and macOS Sonoma. Safari 17.0 is also available in the vision OS Simulator, where you can test your website by downloading the latest beta of Xcode 15, which supports t
Updates to Storage Policy
A website can store data on a user’s device using various storage APIs: localStorage, IndexedDB, File System, etc. It’s an important capability allowing websites to be functional offline with good performance by serving local resources. However, the storage capacity is not unlimited. In fact, it is usually much smaller than a device’s disk size. Bad things could happen when the capacity is full li
Release Notes for Safari Technology Preview 176
Learn about the latest web technology updates in Safari Technology Preview: CSS, Rendering, Accessibility, Media, and Web API. Overview Safari Technology Preview Release 176 is now available for download for macOS Sonoma beta and macOS Ventura. If you already have Safari Technology Preview installed, you can update it in System Settings under General → Software Update. This release includes WebKit
Release Notes for Safari Technology Preview 174
Safari Technology Preview Release 174 is now available for download for macOS Sonoma beta and macOS Ventura. If you already have Safari Technology Preview installed, you can update it in System Settings under General → Software Update. This release includes WebKit changes between: 265305@main…265693@main. CSS Added support for contain-intrinsic-size: auto none property syntax (265617@main) Fixed t
Release Notes for Safari Technology Preview 173
Safari Technology Preview Release 173 is now available for download for macOS Sonoma beta and macOS Ventura. If you already have Safari Technology Preview installed, you can update it in System Settings under General → Software Update. Many of the new Safari 17 features are now available in Safari Technology Preview 173: Feature Flags is a new section of Safari Technology Preview Settings and repl
WebKit Features in Safari 16.5
Today we are pleased to share what new’s in WebKit for Safari 16.5. After the massive, web-developer-feature-packed release of Safari 16.4, this version focuses predominately on polishing existing features and fixing bugs. Safari 16.5 does contain a handful of new features including CSS Nesting, :user-valid and :user-invalid, support for pre-orders and deferred payments with Apple Pay, and an upda
Badging for Home Screen Web Apps
Along with the many other features for web apps on iOS and iPadOS 16.4, WebKit now includes support for the W3C’s Badging API. This straightforward API allows web developers to badge the icon of a web app. This article explores the various features of the Badging API and how to use it, and our ongoing collaboration with W3C’s Web Applications Working Group to improve the specification. Home Screen
Release Notes for Safari Technology Preview 167
Safari Technology Preview Release 167 is now available for download for macOS Monterey 12.3 or later and macOS Ventura. If you already have Safari Technology Preview installed, you can update it in the Software Update pane of System Preferences on macOS Monterey, or System Settings under General → Software Update on macOS Ventura. This release includes WebKit changes between: 261248@main…262124@ma
WebKit Features in Safari 16.4
Mar 27, 2023 by Patrick Angle, Marcos Caceres, Razvan Caliman, Jon Davis, Brady Eidson, Timothy Hatcher, Ryosuke Niwa, and Jen Simmons ContentsWeb Push on iOS and iPadOSImprovements for Web AppsWeb ComponentsCSSHTMLJavaScript and WebAssemblyWeb APIImages, Video, and AudioWKWebViewDeveloper ToolingWeb InspectorSafari Web ExtensionsSafari Content BlockersNew Restrictions in Lockdown ModeMore Improve
Release Notes for Safari Technology Preview 166
Safari Technology Preview Release 166 is now available for download for macOS Monterey 12.3 or later and macOS Ventura. If you already have Safari Technology Preview installed, you can update it in the Software Update pane of System Preferences on macOS Monterey, or System Settings under General → Software Update on macOS Ventura. This release includes WebKit changes between: 260849@main…261247@ma
Try out CSS Nesting today
Back in December, we wrote an article detailing three different options for CSS Nesting. In it, we explained the differences between Option 3, Option 4 and Option 5, demonstrating how each would work through a series of examples. Then we asked a simple question: “Which option is best for the future of CSS?” Web developers responded to the poll with great clarity. Option 3 won in a landslide. And s
Release Notes for Safari Technology Preview 163
Safari Technology Preview Release 163 is now available for download for macOS Monterey 12.3 or later and macOS Ventura. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS Monterey, or System Settings under General → Software Update on macOS Ventura. This release includes WebKit changes between: 258383@main…259548@main.
Allowing Web Share on Third-Party Sites
As of Safari Technology Preview 160, it is no longer possible to use the W3C’s Web Share API with third-party sites within an iframe without including an allow attribute. All browser vendors agreed to this change as part of the W3C’s standardization process, and it is being rolled out in all major browser engines (including Chrome, Edge, Firefox, on mobile and desktop browsers). The Web Share API
Release Notes for Safari Technology Preview 161
Safari Technology Preview Release 161 is now available for download for macOS Monterey 12.3 or later and macOS Ventura. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS Monterey, or System Settings under General → Software Update on macOS Ventura. This release includes WebKit changes between: 257351@main…258382@main
Help choose the syntax for CSS Nesting
The CSS Working Group is continuing a debate over the best way to define nesting in CSS. And if you are someone who writes CSS, we’d like your help. Nesting is a super-popular feature of tools like Sass. It can save web developers time otherwise spent writing the same selectors over and over. And it can make code cleaner and easier to understand. Unnested CSS .class1 { color: green; } .class1 .cla
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