Apple releases Safari Technology Preview 143 with bug fixes and performance improvements

Apple on Thursday released Safari Technology Preview 143, the latest version of their developer preview web browser which offers users the ability to try out features that may, or may not, debut in future public release versions of Safari.

Apple releases Safari Technology Preview 143 with bug fixes and performance improvements
Apple’s Safari icon

Safari is the best way to experience the internet on iPhone, iPad, and Mac. Thanks to blazing-fast performance and industry-leading energy efficiency, millions of users enjoy exploring the web with Safari. Take advantage of powerful new features, advanced developer tools, and cutting-edge technologies in Safari to deliver best-in-class websites and apps.

Safari Technology Previews allow users to get a sneak peek at upcoming web technologies in macOS and iOS and experiment with these technologies in your websites and extensions.

Chris Hauk for MacTrast:

Safari Technology Preview‌ release 143 includes bug fixes and performance improvements for Web Inspector, CSS Container Queries, CSS Cascade Layers, Subgrid, CSS, JavaScript, Rendering, Web Animations, SVG, Scrolling, WebAuthn, WebGL, HTML, Web API, Media, Accessibility, File System Access, and Web Extensions.

‌Safari Technology Preview‌ release 143 is built on the new Safari 15.4 update included in macOS Monterey, and as such, it includes several Safari 15 features.

The preview is available for both macOS Monterey and macOS Big Sur.

MacDailyNews Note: More info, including download links and release notes, for Safari Technology Preview 143 here.

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1 Comment

  1. “Safari is the best way to experience the internet on iPhone, iPad, and Mac. Thanks to blazing-fast performance and industry-leading energy efficiency…” If its so good, why can’t I play Zynga Texas HoldEm Poker through Facebook on Mac Safari without getting the following: “This webpage is using significant memory. Closing it may improve the responsiveness of your Mac.”?

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