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Friday, 26 June, 2020 UTC
App-Bound Domains
Many applications use WKWebView as a convenient way to display websites without requiring users to leave the app, referred to as in-app browsing . Although this can provide a great user experience, the powerful features available to developers using ... moreThursday, 25 June, 2020 UTC
Release Notes for Safari Technology Preview 109 with Safari 14 Features
Safari Technology Preview Release 109 is now available for download for macOS Catalina. With this release, Safari Technology Preview is now available for betas of macOS Big Sur. If you already have Safari Technology Preview installed, you can update ... moreTuesday, 23 June, 2020 UTC
Async Clipboard API
Safari 13.1 adds support for the async Clipboard API. This API allows you, as web developers, to write and read data to and from the system clipboard, and offers several advantages over the current state of the art for reading and writing clipboard data ... moreThursday, 11 June, 2020 UTC
Release Notes for Safari Technology Preview 108
Safari Technology Preview Release 108 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 ... moreThursday, 28 May, 2020 UTC
Release Notes for Safari Technology Preview 107
Safari Technology Preview Release 106 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 ... moreFriday, 15 May, 2020 UTC
Release Notes for Safari Technology Preview 106
Safari Technology Preview Release 106 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 ... moreThursday, 23 April, 2020 UTC
Release Notes for Safari Technology Preview 105
Safari Technology Preview Release 105 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 ... moreFriday, 10 April, 2020 UTC
A Tour of Inline Caching with Delete
If you search for any JavaScript performance advice, a very popular recommendation is to avoid the delete operator. Today, this seems to be good advice, but why should it be vastly more expensive to delete a property than to add it? The goal of my internship ... moreFriday, 10 April, 2020 UTC
Web Animations in Safari 13.1
With the release of iOS 13.4, iPadOS 13.4, and Safari 13.1 in macOS Catalina 10.15.4, web developers have a new API at their disposal: Web Animations. We have been working on this feature for well over 2 years and it’s now available to all Safari users, ... moreFriday, 3 April, 2020 UTC
New WebKit Features in Safari 13.1
This year’s spring releases of Safari 13.1 for macOS Catalina, iPadOS, iOS, and watchOS bring a tremendous number of WebKit improvements for the web across Apple’s platforms. All of this with many more updates for improved privacy, performance, and a ... moreThursday, 26 March, 2020 UTC
Release Notes for Safari Technology Preview 103
Safari Technology Preview Release 103 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 ... moreThursday, 5 March, 2020 UTC
Release Notes for Safari Technology Preview 102
Safari Technology Preview Release 102 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 ... moreTuesday, 3 March, 2020 UTC
Wide Gamut Color in CSS with Display-P3
Display-P3 color space includes vivid colors that aren’t available in sRGB. CSS Color Module Level 4 introduced syntax to use Display-P3 color space on the web: color: color(display-p3 1 0.5 0) The previously available syntax defined colors in sRGB color ... moreWednesday, 19 February, 2020 UTC
Release Notes for Safari Technology Preview 101
Safari Technology Preview Release 101 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 ... moreWednesday, 5 February, 2020 UTC
Release Notes for Safari Technology Preview ��
Safari Technology Preview Release 100 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 ... moreFriday, 24 January, 2020 UTC
ResizeObserver in WebKit
For years now, web developers have desired the ability to design components that are responsive to their container instead of the viewport. Developers are used to using media queries against viewport width for responsive designs, but having media queries ... moreWednesday, 22 January, 2020 UTC
Release Notes for Safari Technology Preview 99
Safari Technology Preview Release 99 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 ... moreWednesday, 8 January, 2020 UTC
Release Notes for Safari Technology Preview 98
Safari Technology Preview Release 98 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 ... moreFriday, 20 December, 2019 UTC
New WebKit Features in Safari 13
This year’s releases of Safari 13 for macOS Catalina, iPadOS, iOS 13, and watchOS 6 include a tremendous number of WebKit improvements for the web across Apple’s platforms. Of particular note is the number of features that enhance website compatibility ... moreWednesday, 18 December, 2019 UTC
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 ... moreThursday, 21 November, 2019 UTC
Release Notes for Safari Technology Preview 96
Safari Technology Preview Release 96 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 ... moreWednesday, 30 October, 2019 UTC
Release Notes for Safari Technology Preview 95
Safari Technology Preview Release 95 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 ... moreWednesday, 16 October, 2019 UTC
Release Notes for Safari Technology Preview 94
Safari Technology Preview Release 94 is now available for download for macOS Mojave and the macOS Catalina beta. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This ... moreWednesday, 2 October, 2019 UTC
Release Notes for Safari Technology Preview 93
Safari Technology Preview Release 93 is now available for download for macOS Mojave and the macOS Catalina beta. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This ... moreMonday, 23 September, 2019 UTC
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. The beta releases of iOS 13, iPadOS, and macOS Catalina include version 2.3 of Safari’s Intelligent ... moreWednesday, 18 September, 2019 UTC
Release Notes for Safari Technology Preview 92
Safari Technology Preview Release 92 is now available for download for macOS Mojave and the macOS Catalina beta. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This ... moreThursday, 12 September, 2019 UTC
WebGPU and WSL in Safari
WebGPU is a new API being developed by Apple and others in the W3C which enables high-performance 3D graphics and data-parallel computation on the Web. This API represents a significant improvement over the existing WebGL API in both performance and ... moreWednesday, 4 September, 2019 UTC
Release Notes for Safari Technology Preview 91
Safari Technology Preview Release 91 is now available for download for macOS Mojave and the macOS Catalina beta. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This ... moreTuesday, 27 August, 2019 UTC
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, ... moreWednesday, 21 August, 2019 UTC