Tech

Safari 27.3 Beta Adds Vertical Tabs and Adaptive Dark Mode

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 03/11/2026, 20:52:24 UTC.

Briefings

Apple released Safari 27.3 for iOS, iPadOS, and macOS, introducing vertical tabs on the left side of the screen and a new Adaptive Dark Mode feature. Users can now toggle Adaptive Dark Mode for websites without a built-in dark mode option, with a built-in demo available. The update also includes vertical tabs that work with both Topics and Tab Groups, alongside continued support for pinning tabs and swapping between Tab Groups.

Key points

• Safari 27.3 introduces vertical tabs on the left side of the screen, available across iPhone, iPad, and Mac, replacing the standard horizontal tab bar.
• Adaptive Dark Mode allows users to toggle dark mode for websites that do not have a built-in dark mode option, with a built-in demo available for testing.

Context

This update is significant as it adds vertical tabs and Adaptive Dark Mode to Safari, enhancing organization and visual comfort for users. The demo was available to the author last week, and the feature works with both Topics and Tab Groups to keep content organized.

Limitations

The evidence is limited to a single article from November 2026. No additional background context or further testing data is provided. The Adaptive Dark Mode feature is available for testing via a built-in demo, but specific user feedback or long-term reliability data is not included in the source.

Generated by Bittrees-hosted qwen35-2b sha256:aaf42c8b7c3c on 03/11/2026, 21:14:29 UTC. Based on publisher-provided feed evidence; may not cover the full original article. Check the source for details.

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