WebKit

Safari Technology Preview Release 88 is now available for download for macOS Mojave and the macOS Catalina beta.

Safari Technology Preview Release 87 is now available for download for macOS Mojave and the macOS Catalina beta.

As anyone who has developed a mobile-friendly site can tell you, mobile browsers and desktop browsers are different.

Safari Technology Preview Release 86 is now available for download for macOS Catalina betas and macOS Mojave.

In revision r237547 we introduced a new bytecode format for JavaScriptCore (JSC).

Safari Technology Preview Release 85 is now available for download for macOS Catalina betas and macOS Mojave.

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.

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.

Safari Technology Preview Release 84 is now available for download for macOS Mojave.

This post is a followup to the Audits in Web Inspector post, and explains the capabilities of and how to write an audit.