


SAFARI TECHNOLOGY PREVIEW MONTEREY UPDATE
Fixed offsetWidth, offsetHeight, and similar to update layout for container queries (r290380).Fixed getComputedStyle to update the style for invalid query containers (r290320).Ensured container style changes are propagated to descendants (r291500).Changed to only apply inline-size containment when it is allowed (r291154).Added basic support for container units (r291474).Added support for nested container queries (r290257).Service workers are no longer terminated while they are being inspected.○ Added option in the Layout panel of the Details Sidebar for Flexbox overlays to show each item's CSS order and/or DOM index in the parent flex container (r290613) Note: Tab Groups do not sync in this release. Safari Technology Preview offers a sneak peek at upcoming web technologies in macOS and iOS and lets you and experiment with these technologies in your websites and extensions.

There are versions of the preview for both the macOS Monterey beta releases as well as macOS Big Sur.Apple has released Safari Technology Preview 143 for macOS Monterey and macOS Big Sur.
SAFARI TECHNOLOGY PREVIEW MONTEREY DOWNLOAD
You can download (opens in new tab) Safari Technology Preview from the Apple Developer website. Experience and test the HTML, CSS, JavaScript, and other web technologies that are available in Safari 15 Beta and included in previous Safari Technology Preview releases. Try out the improved 3D graphics performance of WebGL running on top of Metal via ANGLE.Web technologies. Add links and Safari highlights to remember important information or ideas on the web in macOS Monterey betas.WebGL 2. Try out the support for declarativeNetRequest, which expanded to 150K content blocking rules and non-persistent background pages for improved performance.Quick Notes. Select and interact with text in images on the web in macOS Monterey betas on M1 Macs.Improved Safari Web Extensions. Use Tab Groups to save and organize your tabs. Most notably, the new preview includes the new design of Safari and the new Tab Groups feature. The newest version of Safari Technology Preview includes some of the features coming in the new Safari when macOS Monterey releases to the public in the fall.
