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Thursday, 16 September, 2021 UTC
Release Notes for Safari Technology Preview 132
Safari Technology Preview Release 132 is now available for download for macOS Big Sur and betas of macOS Monterey. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This ... moreWednesday, 1 September, 2021 UTC
Release Notes for Safari Technology Preview 131
Safari Technology Preview Release 131 is now available for download for macOS Big Sur and betas of macOS Monterey. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This ... moreWednesday, 18 August, 2021 UTC
Release Notes for Safari Technology Preview 130
Safari Technology Preview Release 130 is now available for download for macOS Big Sur and betas of macOS Monterey. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This ... moreWednesday, 4 August, 2021 UTC
Release Notes for Safari Technology Preview 129
Safari Technology Preview Release 129 is now available for download for macOS Big Sur and betas of macOS Monterey. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This ... moreThursday, 29 July, 2021 UTC
PCM: Click Fraud Prevention and Attribution Sent to Advertiser
Earlier this year, Safari was the first browser to ship a proposed web standard for measuring advertising in a privacy-preserving way – Private Click Measurement, or PCM. Today we’re happy to announce three major updates to PCM, available in our iOS/iPadOS ... moreWednesday, 28 July, 2021 UTC
Optimizing JavaScript Standard Library Functions in JSC
After three years working on JavaScriptCore (JSC), I recently had the opportunity to work on optimizing one of our standard library functions for the first time. I thought it’d be interesting to share what I learned about how they work in JSC and how ... moreThursday, 22 July, 2021 UTC
Release Notes for Safari Technology Preview 128
Safari Technology Preview Release 128 is now available for download for macOS Big Sur and betas of macOS Monterey. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This ... moreFriday, 2 July, 2021 UTC
Release Notes for Safari Technology Preview 127
Safari Technology Preview Release 127 is now available for download for macOS Big Sur and betas of macOS Monterey. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This ... moreThursday, 17 June, 2021 UTC
Release Notes for Safari Technology Preview 126 with Safari 15 Features
Safari Technology Preview Release 126 is now available for download for macOS Big Sur and betas of macOS Monterey. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. Many ... moreTuesday, 8 June, 2021 UTC
WebKit Features in Safari at WWDC21
There’s a lot of news coming out of WWDC21 about WebKit and the web technology that’s shipping in Safari 15 on Apple’s platforms. Many of the new features were announced on Monday, at this year’s WWDC21 Keynote, and listed in the Safari 15 Beta Release ... moreFriday, 7 May, 2021 UTC
Release Notes for Safari Technology Preview 124
Safari Technology Preview Release 124 is now available for download for macOS Big Sur and macOS Catalina. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This release ... moreThursday, 29 April, 2021 UTC
New WebKit Features in Safari 14.1
Safari 14.1 for macOS Big Sur, iPadOS 14.5, and iOS 14.5 brings new WebKit features, APIs, performance improvements, and improved compatibility for web developers. Take a look. Flexbox Gap Support Safari 14.1 now supports the gap property inside Flexbox ... moreWednesday, 31 March, 2021 UTC
Release Notes for Safari Technology Preview 123
Note: The original end revision for this release was incorrect. These release notes have been updated for the set of changes included in the corrected revision range. Safari Technology Preview Release 123 is now available for download for macOS Big Sur ... moreThursday, 11 March, 2021 UTC
Release Notes for Safari Technology Preview 122
Safari Technology Preview Release 122 is now available for download for macOS Big Sur and macOS Catalina. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This release ... moreFriday, 26 February, 2021 UTC
Release Notes for Safari Technology Preview 121
Safari Technology Preview Release 121 is now available for download for macOS Big Sur and macOS Catalina. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This release ... moreWednesday, 10 February, 2021 UTC
Release Notes for Safari Technology Preview 120
Safari Technology Preview Release 120 is now available for download for macOS Big Sur and macOS Catalina. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This release ... moreMonday, 1 February, 2021 UTC
Introducing Private Click Measurement, PCM
This blog post covers a new feature called Private Click Measurement, or PCM, for measuring ad clicks across websites and from iOS apps to websites. It is part of iOS and iPadOS 14.5 betas. Motivation and Goals Classic ad attribution on the web is done ... moreWednesday, 27 January, 2021 UTC
Release Notes for Safari Technology Preview 119
Safari Technology Preview Release 119 is now available for download for macOS Big Sur and macOS Catalina. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This release ... moreFriday, 8 January, 2021 UTC
Release Notes for Safari Technology Preview 118
Safari Technology Preview Release 118 is now available for download for macOS Big Sur and macOS Catalina. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This release ... moreThursday, 10 December, 2020 UTC
Release Notes for Safari Technology Preview 117
Safari Technology Preview Release 117 is now available for download for macOS Big Sur and macOS Catalina. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This release ... moreFriday, 20 November, 2020 UTC
Release Notes for Safari Technology Preview 116
Safari Technology Preview Release 116 is now available for download for macOS Big Sur and macOS Catalina. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This release ... moreMonday, 16 November, 2020 UTC
New WebKit Features in Safari 14
With the release of Safari 14 for macOS Big Sur, iPadOS 14, iOS 14, and watchOS 7, WebKit brings significant improvements to performance and privacy along with a host of new features for web developers. Take a look at all of the improvements WebKit is ... moreFriday, 13 November, 2020 UTC
CNAME Cloaking and Bounce Tracking Defense
This blog post covers several enhancements to Intelligent Tracking Prevention (ITP) in Safari 14 on macOS Big Sur, Catalina, and Mojave, iOS 14, and iPadOS 14 to address our latest discoveries in the industry around tracking. CNAME Cloaking Defense ITP ... moreThursday, 22 October, 2020 UTC
Release Notes for Safari Technology Preview 115
Safari Technology Preview Release 115 is now available for download for macOS Big Sur and macOS Catalina. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This release ... moreTuesday, 20 October, 2020 UTC
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 ... moreThursday, 8 October, 2020 UTC
Release Notes for Safari Technology Preview 114
Safari Technology Preview Release 114 is now available for download for macOS Big Sur and macOS Catalina. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This release ... moreTuesday, 18 August, 2020 UTC
Release Notes for Safari Technology Preview 112
Safari Technology Preview Release 112 is now available for download for macOS Big Sur and macOS Catalina. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This release ... moreWednesday, 29 July, 2020 UTC
Speculation in JavaScriptCore
This post is all about speculative compilation, or just speculation for short, in the context of the JavaScriptCore virtual machine. Speculative compilation is ideal for making dynamic languages, or any language with enough dynamic features, run faster. ... moreWednesday, 29 July, 2020 UTC
Release Notes for Safari Technology Preview 111
Safari Technology Preview Release 111 is now available for download for macOS Big Sur and macOS Catalina. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS. This release ... moreThursday, 16 July, 2020 UTC