Safari Technology Preview 231 Released for macOS Sequoia and Tahoe

Apple has launched a new test version of its Safari web browser. The Safari Technology Preview 231 update arrived on October 30, 2025. This experimental browser allows users to try upcoming features first.

The release is designed for developers and testers to provide feedback. It includes a range of fixes and new capabilities for future Safari builds.

Key Updates and Feature Improvements

This new build brings refinements across several core web technologies. According to Apple’s release notes, areas with updates include CSS, JavaScript, and Media handling. Rendering and Web API improvements are also part of the package.

The update also enhances Web Inspector and WebDriver tools. These changes aim to create a smoother and more powerful browsing experience for future public releases.

Availability and Testing Purpose

The Safari Technology Preview is available for machines running macOS Sequoia and the newly named macOS Tahoe. Users who have already downloaded the browser can get the update through the Software Update mechanism in System Settings.

Apple’s goal is to gather real-world feedback on its browser development. The preview can run alongside the standard Safari browser without conflict. No developer account is needed to download and test it.

This latest Safari Technology Preview continues Apple’s cycle of public testing. The Safari Technology Preview 231 build provides a crucial look at the web’s future on Mac.

Info at your fingertips

What is the Safari Technology Preview?

It is an experimental browser from Apple. It allows users to test features planned for future public Safari releases. The first version was introduced in March 2016.

What’s new in version 231?

This update includes fixes and updates for CSS, JavaScript, and Media. It also improves Rendering, Web API, Web Inspector, and WebDriver functionality.

Which macOS versions are supported?

The current release is compatible with macOS Sequoia and macOS Tahoe. These are the newest versions of Apple’s desktop operating system.

How do I get the update?

It is available through Software Update in System Settings. This is for anyone who has previously downloaded the browser from Apple’s website.

Why does Apple release this preview?

Its aim is to gather feedback from developers and users. This helps refine features before they reach the general public in a stable Safari release.