Safari Technology Preview 181: Apple unveils comprehensive details

Apple has recently launched a new update for its experimental browser, Safari Technology Preview. The latest version, 181, brings various enhancements and fixes for CSS, HTML, JavaScript, Media, Rendering, and SVG.

Safari Technology Preview 181 is fully compatible with macOS Ventura and macOS Sonoma, the latest operating systems released by Apple in September 2023.

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If you're eager to try out the latest features, the Safari Technology Preview update is now available for download through the Software Update mechanism in System Preferences or System Settings.

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If you're already using Safari Technology Preview, updating to release 181 is easy. Simply navigate to System Settings, select General, and click on Software Update.

What's new in Safari Technology Preview 181?

Here are some notable updates included in this release:

1. CSS updates: Added support for content-visibility, fixed serialisation of shape-outside, and improved blend modes interoperability.
2. HTML updates: Added support for one-time-code as an allowed autocomplete field name, fixed [dir=auto] invalidation with password fields, and ensured proper handling of the first parseable value.
3. JavaScript updates: Rectified generator functions not being Annex B hoisting candidates and improved the algorithm for determining Annex B hoisted functions with lexical scope chain walk.
4. Media updates: Added MediaStream support for whiteBalanceMode.
5. Rendering updates: Fixed resizing behavior with writing-mode: vertical-rl or direction: rtl and addressed handling iframes with display: none.
6. Deprecations: Removed margin-trim behavior for floats to align with specification changes.
7. SVG updates: Corrected the SVG mask to function as a mask-resource for the CSS mask-image.

The Safari Technology Preview is a valuable tool in the browser development process, allowing developers and users to provide feedback while using the browser alongside the standard Safari version. It can be downloaded without the need for a developer account.