Apple Releases Safari Technology Preview 142 With Bug Fixes and Performance Improvements
Apple today released a new update for Safari Technology Preview, the experimental browser Apple first introduced in March 2016. Apple designed the Safari Technology Preview to test features that may be introduced into future release versions of Safari.
Safari Technology Preview release 142 includes bug fixes and performance improvements for Web Inspector, CSS Subgrid, CSS Container Queries, CSS, Web Animations, Rendering, JavaScript, Forms, Shared Workers, Workers, Dialog Element, Web API, Experimental Model Element, and Web Extensions.
The current Safari Technology Preview release is built on the Safari 15.4 update and it includes Safari 15 features introduced in macOS Monterey.
The Safari Technology Preview update is available through the Software Update mechanism in System Preferences to anyone who has downloaded the browser. Full release notes for the update are available on the Safari Technology Preview website.
Apple's aim with Safari Technology Preview is to gather feedback from developers and users on its browser development process. Safari Technology Preview can run side-by-side with the existing Safari browser and while designed for developers, it does not require a developer account to download.
Popular Stories
Apple today released a new update for Safari Technology Preview, the experimental browser that was first introduced in March 2016. Apple designed Safari Technology Preview to allow users to test features that are planned for future release versions of the Safari browser.
Safari Technology Preview 256 includes fixes and updates for Accessibility, Animations, CSS, Editing, Forms, HTML,...
Apple has announced that the long-running Apple Support Community discussion forums for user-to-user tech support will be permanently closing on Friday, November 20. The forums have existed in some form for nearly 30 years, so it is the end of an era.
Effectively immediately, the Apple Support Community forums are in a read-only state, with new posts no longer being accepted. The final...
The Apple launches keep coming! The company is set to release two new products on Friday, November 13: the all-new Apple HomeView and the fourth-generation Apple TV 4K, both of which have been available to pre-order since mid-October.
Apple HomeView: Apple's new smart home display, powered by Apple Intelligence with Siri AI, for entertainment and managing the home. Available in tabletop and...
/https://forums.macrumors.com/attachments/1979928/)
/https://forums.macrumors.com/attachments/1979931/)
/https://forums.macrumors.com/attachments/1979932/)
![iCloud Mail, Calendar, Contacts and More Experiencing Outage [Updated]](https://images.macrumors.com/t/SbkSBpphyjvBjtgfgNZg-KvvJD0=/112x112/article-new/2026/07/General-iCloud-App-Feature.jpg)
