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Thursday, 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
Release Notes for Safari Technology Preview 90
Safari Technology Preview Release 90 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, 8 August, 2019 UTC
Release Notes for Safari Technology Preview 89
Safari Technology Preview Release 89 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 ... moreFriday, 2 August, 2019 UTC
Changing Page Settings on iOS Using Web Inspector
If you’ve ever used Web Inspector before, chances are you’ve used (or are at least familiar with) the Develop menu. It holds action items and toggles for various settings of the browser, like whether local files (e.g. URLs beginning with file:// ) can ... moreThursday, 25 July, 2019 UTC
Release Notes for Safari Technology Preview 88
Safari Technology Preview Release 88 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, 10 July, 2019 UTC
Release Notes for Safari Technology Preview 87
Safari Technology Preview Release 87 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, 26 June, 2019 UTC
Release Notes for Safari Technology Preview 86
Safari Technology Preview Release 86 is now available for download for macOS Catalina betas 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 ... moreSaturday, 22 June, 2019 UTC
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 ... moreThursday, 13 June, 2019 UTC
Release Notes for Safari Technology Preview 85
Safari Technology Preview Release 85 is now available for download for macOS Catalina betas 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, 6 June, 2019 UTC
What’s New in the Payment Request API for Apple Pay
Since announcing last April that WebKit supports the W3C Payment Request API for Apple Pay, we’ve been hard at work adding even more features to the API. From support for phonetic names in the Apple Pay payment method to new standard features like the ... moreThursday, 6 June, 2019 UTC
CPU Timeline in Web Inspector
Web Inspector now includes a new CPU usage timeline that lets developers measure a page’s CPU usage, estimate its energy impact, and more easily investigate sources of script execution that may be contributing to poor energy utilization. Energy Efficiency ... moreWednesday, 5 June, 2019 UTC