---
title: Safari Technology Preview 184 Release Notes
framework: safari-technology-preview-release-notes
role: article
role_heading: Article
path: safari-technology-preview-release-notes/stp-release-184
---

# Safari Technology Preview 184 Release Notes

Learn about the latest web technology updates in Safari Technology Preview: Accessibility, CSS, HTML, JavaScript, Media, Web Animations, Web API, Web Assembly, Web Inspector, and WebGL.

## Overview

Overview Safari Technology Preview Release 184 is now available for download for macOS Sonoma and macOS Ventura. If you already have Safari Technology Preview installed, you can update it in System Settings under General → Software Update. This release includes WebKit changes between: 270234@main…271110@main. Accessibility Resolved Issues Fixed VoiceOver not announcing the button label if the button is in a shadow root. (270542@main)  (118118138) CSS New Features Added support for CSS custom properties on dialog ::backdrop (270246@main)  (117949961) Resolved Issues Fixed visited color to fallback. (270270@main)  (115289075) Fixed block size with max-content and min-content in a table. (271054@main)  (116264670) Fixed the continuity of transform animations through singular transforms. (270294@main)  (117209302) Fixed content-visibility to not apply to tables. (270888@main)  (117914336) HTML Resolved Issues Fixed memory growth with lazy loaded images outside the viewport. (270745@main)  (117683012) Fixed blocking JavaScript reading nonce for <style> and <link>. (271046@main)  (118676659) JavaScript New Features Enabled Array group methods. (270350@main)  (118037635) Added support for ArrayBuffer.prototype.detached, ArrayBuffer.prototype.transfer, and ArrayBuffer.prototype.transferToFixedLength. (270349@main)  (118037759) Resolved Issues Fixed Temporal API to throw TypeErrors for unexpected primitives. (270262@main)  (117992134) Fixed Temporal options handling to align with the specification. (270360@main)  (118088676) Fixed Temporal.Now.timeZone() to be updated to timeZoneId(). (271003@main)  (118674314) Media New Features Added support for all of HTML’s character entities in WebVTT. (270240@main)  (51064890) Resolved Issues Fixed the always empty video.buffered attribute. (270931@main)  (118550061) Fixed WebVTT to correctly parse region id settings. (270868@main)  (118551267) Fixed VideoEncoder produces no frames with latencyMode “realtime” when framerate/bitrate are not given. (271087@main)  (118725549) Fixed in-band captions wrapping unnecessarily. (271415@main)  (119024855) Web Animations Resolved Issues Fixed style invalidation for animations. (270890@main)  (118500247) Web API New Features Added support for AbortSignal.any(). (270268@main)  (117985827) Added support for element.checkVisibility(). (270425@main)  (118157977) Web Assembly New Features Enabled extended constant expressions. (270475@main)  (118190467) Web Inspector New Features Added support for grouping source map load errors. (270834@main)  (109239646) Added an editor for the CSS linear() timing function. (270855@main)  (115095425) Resolved Issues Fixed the tan() function to not trigger the color picker. (271075@main)  (118724061) WebGL New Features Added support for new WebGL extensions: EXT_clip_control EXT_depth_clamp EXT_polygon_offset_clamp WEBGL_polygon_mode (270382@main)  (118110035)

## See Also

### 2023

- [Safari Technology Preview 185 Release Notes](safari-technology-preview-release-notes/stp-release-185.md)
- [Safari Technology Preview 183 Release Notes](safari-technology-preview-release-notes/stp-release-183.md)
- [Safari Technology Preview 182 Release Notes](safari-technology-preview-release-notes/stp-release-182.md)
- [Safari Technology Preview 181 Release Notes](safari-technology-preview-release-notes/stp-release-181.md)
- [Safari Technology Preview 180 Release Notes](safari-technology-preview-release-notes/stp-release-180.md)
- [Safari Technology Preview 179 Release Notes](safari-technology-preview-release-notes/stp-release-179.md)
- [Safari Technology Preview 178 Release Notes](safari-technology-preview-release-notes/stp-release-178.md)
- [Safari Technology Preview 177 Release Notes](safari-technology-preview-release-notes/stp-release-177.md)
- [Safari Technology Preview 176 Release Notes](safari-technology-preview-release-notes/stp-release-176.md)
- [Safari Technology Preview 175 Release Notes](safari-technology-preview-release-notes/stp-release-175.md)
- [Safari Technology Preview 174 Release Notes](safari-technology-preview-release-notes/stp-release-174.md)
- [Safari Technology Preview 173 Release Notes](safari-technology-preview-release-notes/stp-release-173.md)
- [Safari Technology Preview 172 Release Notes](safari-technology-preview-release-notes/stp-release-172.md)
- [Safari Technology Preview 171 Release Notes](safari-technology-preview-release-notes/stp-release-171.md)
- [Safari Technology Preview 170 Release Notes](safari-technology-preview-release-notes/stp-release-170.md)