---
title: "Release Notes for Safari Technology Preview 244"
url: https://daily.dev/posts/release-notes-for-safari-technology-preview-244-aqbh7pydl
source_url: https://webkit.org/blog/17962/release-notes-for-safari-technology-preview-244
type: article
source: "WebKit"
published: 2026-05-21T23:06:01.694Z
updated: 2026-05-21T23:06:26.374Z
tags: ["javascript", "css", "safari"]
reading_time: 12
upvotes: 10
comments: 1
language: en
---

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> Use this file to discover all available pages before exploring further.

# Release Notes for Safari Technology Preview 244

**[WebKit](https://daily.dev/sources/webkit)** · 12 min read · 10 upvotes · 1 comments

## Summary

Safari Technology Preview 244 brings a large set of bug fixes and new features across WebKit. CSS sees the most changes, including fixes for anchor positioning, aspect-ratio calculations, flex layout, :has() invalidation performance, and numerous absolutely-positioned table issues. New CSS features include transform-aware anchor positioning and position-anchor property values. JavaScript gains several performance improvements including SIMD-accelerated TypedArray search. Other highlights include: Web Extensions can now propagate user gestures through messaging APIs, dedicated workers can be created inside shared workers, synchronized video playback on genlock displays, MathML multi-character operator support, and various accessibility, rendering, scrolling, and Web API bug fixes.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://webkit.org/blog/17962/release-notes-for-safari-technology-preview-244>

## Community discussion

Top comments from developers on daily.dev.

**@allinonetools** · 1 upvotes

> Nice update — the CSS fixes around anchor positioning and layout edge cases are the kind of changes that quietly make real-world UI work smoother. Also glad to see performance work in JS and better worker support; those upgrades usually pay off more than headline features.

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---

Tags: [#javascript](https://daily.dev/tags/javascript), [#css](https://daily.dev/tags/css), [#safari](https://daily.dev/tags/safari)

[View this post on daily.dev](https://daily.dev/posts/release-notes-for-safari-technology-preview-244-aqbh7pydl)