# Apple Safari Technology Preview updates

> Live situation record from CLSTR: https://clstr.news/situations/apple-safari-technology-preview-updates
> Updated: 2026-08-14T05:19:35.000Z. Sources: 2. Developments: 2.

Apple has released successive updates to its Safari Technology Preview for macOS Golden Gate and macOS Tahoe. 

Version 249 introduced various enhancements, including expanded CSS capabilities, new accessibility support, and updates to WebKit components such as Web Audio and WebRTC. 

Following this, version 250 was released, continuing the program’s cycle of frequent updates for developers and enthusiasts to test upcoming WebKit features and bug fixes, such as searching within video subtitles.

## Timeline

### 2026-08-14: Apple releases Safari Technology Preview 250 for macOS

Apple has released Safari Technology Preview 250 for macOS Golden Gate and macOS Tahoe, allowing developers to test upcoming WebKit features and updates.

2 sources. https://clstr.news/cluster/apple-releases-safari-technology-preview-250-for-macos

### 2026-07-29: Apple releases Safari Technology Preview 249 with new web and accessibility features

Apple released Safari Technology Preview 249 for macOS Golden Gate and Tahoe, adding accessibility, CSS, Web API and animation improvements, available via system update.

2 sources. https://clstr.news/cluster/apple-releases-safari-technology-preview-249-with-new-web-and-accessibility-features

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Cite as: Apple Safari Technology Preview updates. CLSTR, https://clstr.news/situations/apple-safari-technology-preview-updates