Release Notes for Safari Technology Preview 52

Release Notes for Safari Technology Preview 52

Safari Technology Preview Release 52 is now available for download for macOS Sierra and macOS High Sierra.

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Protecting Against HSTS Abuse

Protecting Against HSTS Abuse

HTTP Strict Transport Security (HSTS) is a security standard that provides a mechanism for web sites to declare themselves accessible only via secure connections, and to tell web browsers where to go to get that secure version.

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Intelligent Tracking Prevention 1.1

Intelligent Tracking Prevention 1.1

Note: Read about improvements to this technology in recent blog posts about Intelligent Tracking Prevention, and the Storage Access API.

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Release Notes for Safari Technology Preview 51

Release Notes for Safari Technology Preview 51

Safari Technology Preview Release 51 is now available for download for macOS Sierra and macOS High Sierra.

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Introducing Storage Access API

Introducing Storage Access API

Today we are happy to provide a solution for embedded cross-site content to authenticate users who are already logged in to first-party services in the form of the Storage Access API.

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Release Notes for Safari Technology Preview 50

Release Notes for Safari Technology Preview 50

Safari Technology Preview Release 50 is now available for download for macOS Sierra and macOS High Sierra.

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Workers at Your Service

Workers at Your Service

Update: A previous version of this post stated the Service Worker API is available in all applications using WKWebView.

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Release Notes for Safari Technology Preview 49

Release Notes for Safari Technology Preview 49

Safari Technology Preview Release 49 is now available for download for macOS Sierra and macOS High Sierra.

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Release Notes for Safari Technology Preview 48

Release Notes for Safari Technology Preview 48

Safari Technology Preview Release 48 is now available for download for macOS Sierra and macOS High Sierra.

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Speedometer 2.0:
A Benchmark for Modern Web App Responsiveness

Speedometer 2.0:
A Benchmark for Modern Web App Responsiveness

In 2014, the WebKit team at Apple released Speedometer 1.0, a benchmark for web app responsiveness.

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Release Notes for Safari Technology Preview 47

Release Notes for Safari Technology Preview 47

Safari Technology Preview Release 47 is now available for download for macOS Sierra and macOS High Sierra.

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What Spectre and Meltdown Mean For WebKit

What Spectre and Meltdown Mean For WebKit

Security researchers have recently uncovered security issues known as Meltdown and Spectre.

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