<!--
{
  "documentType" : "article",
  "framework" : "Safari Technology Preview Release Notes",
  "identifier" : "/documentation/Safari-Technology-Preview-Release-Notes/stp-release-130",
  "metadataVersion" : "0.1.0",
  "role" : "article",
  "title" : "Safari Technology Preview 130 Release Notes"
}
-->

# Safari Technology Preview 130 Release Notes

Preview the latest web technology updates including: Web Inspector, CSS, Media, Web API, and IndexedDB.

## Overview

[Safari Technology Preview](https://webkit.org/blog/6017/introducing-safari-technology-preview/) Release 130 is now [available for download](https://webkit.org/downloads/) for macOS Big Sur and betas of macOS Monterey. If you already have Safari Technology Preview installed, you can update in the Software Update pane of System Preferences on macOS.

This release covers WebKit revisions [279831-280418](https://trac.webkit.org/log?stop_rev=279831&rev=280418&limit=999).

**Note:** Tab Groups do not sync in this release. On macOS Big Sur, this release requires enabling **GPU Process: Media** option from **Experimental Features** under the **Develop** menu to address issues with streaming services.

### Web Inspector

- Elements
  - Fixed selecting a sibling node using navigation breadcrumbs ([r280037](https://trac.webkit.org/changeset/280037/webkit/))

### CSS

- Changed to use the correct `block-size` to resolve `min-content` ([r280023](https://trac.webkit.org/changeset/280023/webkit/))
- Changed to pass the full target point when selecting a snap offset ([r280171](https://trac.webkit.org/changeset/280171/webkit/))
- Changed images as grid items to use the `overridingLogicalWidth` when defined to compute the logical height ([r280024](https://trac.webkit.org/changeset/280024/webkit/), [r280078](https://trac.webkit.org/changeset/280078/webkit/))
- Ignored the `aspect-ratio` of a replaced element if stretch alignments are applied to both axes ([r280022](https://trac.webkit.org/changeset/280022/webkit/))

## JavaScript

- Implemented `Array.prototype.findLast` and `Array.prototype.findLastIndex` behind a runtime flag (`--useArrayFindLastMethod`) ([r279937](https://trac.webkit.org/changeset/279937/webkit/))

### Media

- Added support for `MediaError.message` ([r279978](https://trac.webkit.org/changeset/279978/webkit/))
- Added webm/opus container support for Web Audio ([r280416](https://trac.webkit.org/changeset/280416/webkit/))
- Fixed hanging when entering PiP from element fullscreen ([r280358](https://trac.webkit.org/changeset/280358/webkit/))
- Fixed `SourceBuffer.abort()` doesn’t go back to state WAITING_FOR_SEGMENT properly ([r279904](https://trac.webkit.org/changeset/279904/webkit/))
- Fixed video pausing after scrubbing with the Touch Bar ([r280330](https://trac.webkit.org/changeset/280330/webkit/))

### Web API

- Fixed `document.referrer` value missing a trailing slash ([r280342](https://trac.webkit.org/changeset/280342/webkit/))
- Fixed `FetchResponse.formData()` to not reject the promise if the body is null and the MIME type is `"application/x-www-form-urlencoded"` ([r280046](https://trac.webkit.org/changeset/280046/webkit/), [r279969](https://trac.webkit.org/changeset/279969/webkit/))
- Fixed `getBoundingClientRect()` to return the correct rectangle on elements inside a multi-column container ([r280017](https://trac.webkit.org/changeset/280017/webkit/))
- Fixed `HTMLImageElement.decoding` to reflect the `decoding` content attribute, limited to only known values ([r280047](https://trac.webkit.org/changeset/280047/webkit/))
- Fixed Sync XHR “load” event always having total/loaded=0 ([r279967](https://trac.webkit.org/changeset/279967/webkit/))
- Implemented `SubmitEvent` interface ([r279979](https://trac.webkit.org/changeset/279979/webkit/))

### IndexedDB

- Fixed `IDBFactory.databases` to return correct results ([r280410](https://trac.webkit.org/changeset/280410/webkit/))
- Implemented `IDBTransaction.commit()` ([r280053](https://trac.webkit.org/changeset/280053/webkit/))
- Implemented `IDBTransaction.durability` ([r280415](https://trac.webkit.org/changeset/280415/webkit/))

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)