WebKit Features in Safari 16.1
ContentsWeb Push for macOS VenturaAnimated AVIFPasskeysNew viewport sizes on iPadOSHover on iPadOS with Apple PencilScroll to Text FragmentScreen capture improvementsAnd MoreFixes and PolishFeedback Today, Safari 16 arrives for macOS Ventura and iPadOS 16. Numbered Safari 16.1, this release is also available for iOS 16, macOS Monterey, and macOS Big Sur. To update to Safari 16.1 on macOS Monterey
Meet Face ID and Touch ID for the Web
People often see passwords are the original sin of authentication on the web. Passwords can be easy to guess and vulnerable to breaches. Frequent reuse of the same password across the web makes breaches even more profitable. As passwords are made stronger and unique, they can quickly become unusable for many users. Passwords indeed look notorious, but are passwords themselves the problem, or is it
Full Third-Party Cookie Blocking and More
This blog post covers several enhancements to Intelligent Tracking Prevention (ITP) in iOS and iPadOS 13.4 and Safari 13.1 on macOS to address our latest discoveries in the industry around tracking. Cookies for cross-site resources are now blocked by default across the board. This is a significant improvement for privacy since it removes any sense of exceptions or “a little bit of cross-site track
Release Notes for Safari Technology Preview 97
Safari Technology Preview Release 97 is now available for download for macOS Catalina and macOS Mojave. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This release covers WebKit revisions 251627-252823. Resize Observer Enabled Resize Observer by default (r251822) WebAuthn Added UI with instructions for authenticat
Intelligent Tracking Prevention 2.3
Note: Read about past updates to this technology in other blog posts about Intelligent Tracking Prevention, the Storage Access API, and ITP Debug Mode. Intelligent Tracking Prevention (ITP) version 2.3 is included in Safari on iOS 13, the iPadOS beta, and Safari 13 on macOS for Catalina, Mojave, and High Sierra. Enhanced Prevention of Tracking Via Link Decoration Our previous release, ITP 2.2, foc
How Web Content Can Affect Power Usage
Users spend a large proportion of their online time on mobile devices, and a significant fraction of the rest is users on untethered laptop computers. For both, battery life is critical. In this post, we’ll talk about factors that affect battery life, and how you, as a web developer, can make your pages more power efficient so that users can spend more time engaged with your content. What Draws Po
Tracking Prevention Policy
ContentsTracking DefinitionsTypes of TrackingTracking We Will PreventPolicy CircumventionNo ExceptionsUnintended ImpactAcknowledgements This document describes the web tracking practices that WebKit believes, as a matter of policy, should be prevented by default by web browsers. These practices are harmful to users because they infringe on a user’s privacy without giving users the ability to ident
A New Bytecode Format for JavaScriptCore
In revision r237547 we introduced a new bytecode format for JavaScriptCore (JSC). The goals of the new format were to improve memory usage and allow the bytecode to be cached on disk, while the previous format was optimized for interpreter throughput at the cost of memory usage. In this post, we will start with a quick overview of JSC’s bytecode, key aspects of the old bytecode format and the opti
Dark Mode Support in WebKit
With the introduction of Dark Mode in macOS Mojave last year, web developers have been asking for support in Safari to style web content that matches the system appearance. With the Safari 12.1 update in macOS 10.14.4, iOS 13, and iPad OS 13, dark mode support in WebKit and Safari has arrived. Dark Mode Behaviors By default there are no behavior changes with how pages look when a user is in dark m
Intelligent Tracking Prevention 2.2
Note: Read about past updates to this technology in other blog posts about Intelligent Tracking Prevention, and the Storage Access API. The beta releases of iOS 12.3 and Safari on macOS Mojave 10.14.5 include an updated version of Intelligent Tracking Prevention (ITP). For purposes of developer communication, we’ll refer to it as ITP 2.2. Tracking Via Link Decoration Caps Client-Side Cookies to 1
Release Notes for Safari Technology Preview 69
Safari Technology Preview Release 69 is now available for download for macOS Mojave and macOS High Sierra. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS Mojave and from the Mac App Store’s Updates tab on macOS High Sierra. After updating to macOS Mojave, you may have to reinstall Safari Technology Preview. This re
Release Notes for Safari Technology Preview 68
Safari Technology Preview Release 68 is now available for download for macOS Mojave and macOS High Sierra. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS Mojave and from the Mac App Store’s Updates tab on macOS High Sierra. After updating to macOS Mojave, you may have to reinstall Safari Technology Preview. This re
Intelligent Tracking Prevention 2.0
Note: Read about improvements to this technology in recent blog posts about Intelligent Tracking Prevention, and the Storage Access API. Today we’re happy to bring you Intelligent Tracking Prevention 2.0, or ITP 2.0. It builds upon ITP 1.0, which we released last year, and ITP 1.1, which was released in March, adding the Storage Access API. Removal of the 24 Hour Cookie Access Window ITP 2.0, as o
What Spectre and Meltdown Mean For WebKit
Security researchers have recently uncovered security issues known as Meltdown and Spectre. These issues apply to all modern processors and allow attackers to gain read access to parts of memory that were meant to be secret. To initiate a Spectre- or Meltdown-based attack, the attacker must be able to run code on the victim’s processor. WebKit is affected because in order to render modern web site
Release Notes for Safari Technology Preview 42
Safari Technology Preview Release 42 is now available for download for macOS Sierra and macOS High Sierra. If you already have Safari Technology Preview installed, you can update from the Mac App Store’s Updates tab. This release covers WebKit revisions 222556-223209. If you recently updated from macOS Sierra to macOS High Sierra, you may need to install the High Sierra version of Safari Technolog
Release Notes for Safari Technology Preview 38
Safari Technology Preview Release 38 is now available for download for macOS Sierra and betas of macOS High Sierra. If you already have Safari Technology Preview installed, you can update from the Mac App Store’s Updates tab. This release covers WebKit revisions 220128-220795. Beacon API Enabled the Beacon API by default as an experimental feature (r220553) Added support for CORS-preflighting (r22
New Web Features in Safari 10.1
A new version of Safari shipped with the release of iOS 10.3 and macOS Sierra 10.12.4. Safari on iOS 10.3 and Safari 10.1 on macOS adds many important web features and improvements from WebKit that we are incredibly excited about. While this release makes the web platform more capable and powerful, it also makes web development easier, simplifying the ongoing maintenance of your code. We’re excite
Next-generation 3D Graphics on the Web
Apple’s WebKit team today proposed a new Community Group at the W3C to discuss the future of 3D graphics on the Web, and to develop a standard API that exposes modern GPU features including low-level graphics and general purpose computation. W3C Community Groups allow all to freely participate, and we invite browser engineers, GPU hardware vendors, software developers and the Web community to join
Release Notes for Safari Technology Preview 15
Safari Technology Preview Release 15 is now available for download for both macOS Sierra and OS X El Capitan 10.11.6. If you already have Safari Technology Preview installed, you can update from the Mac App Store’s Updates tab. This release covers WebKit revisions 206196–206808. This is the last release of Safari Technology Preview that will install and run on OS X El Capitan. To continue testing
Release Notes for Safari Technology Preview 7
Safari Technology Preview Release 7 is now available for download. If you already have Safari Technology Preview installed, you can update from the Mac App Store’s Updates tab. Release 7 of Safari Technology Preview covers WebKit revisions 201541–202085. JavaScript Implemented options argument to addEventListener (r201735, r201757) Updated JSON.stringify to correctly transform numeric array indice
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