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Chromium Weekly Digest

Week 1 of 2026 (2026-01-01 to 2026-01-03)

Chromium Weekly: 2026 Week 1

Overview

This week saw 9 relevant commits out of 21 total across 2 days. The most significant update is a breaking change in the Bluetooth test framework. Other highlights include UI refinements for Vertical Tabs, metrics improvements for Safe Browsing, and the introduction of an experimental flag to address extension corruption.

Bluetooth

  • ⚠️ BREAKING BREAKING CHANGE: The pure virtual method PlatformSupportsLowEnergy() has been removed from the public test base class device::BluetoothTestBase. Embedders inheriting from this class must remove their implementations to avoid build failures. (b64652f)

UI & UX

  • The Vertical Tabs feature received visual refinements, including an opacity gradient to indicate scrollable content and updated margins when in collapsed mode. (39012f4) (be19c99)

Safe Browsing & Security

  • Safe Browsing metrics have been improved by skipping preclassification checks for error documents and adding new histograms for server-side scans. Additionally, an unsafe buffer usage was fixed in usb_device_handle_win.cc. (137a3f7) (6f1b149) (d5d92a2)

Extensions

  • A new experimental feature flag, kContentVerifierCacheIncludesExtensionRoot, was added to test a fix for extension corruption by including the extension's root path in the content verifier's cache key. (dd0f836) (621959d)

WebGPU

  • A bug was fixed where an incorrect cropSize was used for the 1-copy external texture path, ensuring the video frame's natural size is correctly applied. (2ae5da1)
Daily Summaries (2)
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