Microsoft Releases Windows 11 26H1 Beta in Canary Channel

Published on January 06, 2026 | Translated from Spanish
Screenshot of the Windows 11 26H1 interface showing the new taskbar and a Start menu with widgets, over a characteristic blue background of the operating system.

Microsoft releases the beta of Windows 11 26H1 in the Canary channel

Users of the Windows Insider program participating in the Canary channel can now test the beta version of the next major system update, known as 26H1. This build incorporates several features that were initially planned for the 25H2 version but were delayed for unspecified reasons. 🚀

Technical features and interface changes

The beta introduces significant modifications at the system level. One of the most relevant changes is a new composition engine that aims to optimize how the graphical interface is drawn, which could make the desktop feel smoother. Additionally, the subsystem for running Android apps is updated, allowing them to run with improved performance.

Main new features included:
  • Renewed composition engine: Aims to improve the overall visual fluidity of the desktop.
  • Improved Android subsystem: Optimizes the performance of Android apps on Windows.
  • Native support for compressed formats: The system can now open RAR, 7-Zip, and other files without third-party software.
  • Adjustments to the taskbar and Start menu: Minor modifications to better organize icons and available widgets.
Canary channel builds are the most experimental and may contain significant bugs. Microsoft uses them to test low-level features.

The nature of the Canary channel for Insiders

It is crucial to understand that Canary channel versions are inherently unstable. Microsoft deploys them to test features at a very deep level of the operating system and collect data on their behavior before deciding whether to implement them in more stable channels like Beta or Release Preview.

Key considerations for Insiders:
  • High instability: These builds often have critical bugs that can affect daily use.
  • Testing purpose: Their main goal is for Microsoft to evaluate the performance and stability of new features.
  • Not for primary machines: It is recommended to install only on secondary or dedicated experimental machines.

A steady flow of new features

This release reflects Microsoft's strategy of having a feature backlog that is gradually integrated into future updates. For Windows Insider program members, this translates into a steady flow of new features to test, although it often means sacrificing system stability. The development team seems to regularly pull out features that were pending from previous versions, keeping the tester community engaged. 💻