Release Preview Channel builds

What's being tested 2 new · 2 improved · 3 fixes

• New Noto Fonts: Windows adds fonts for Chinese, Japanese, and Korean text.
• New Temporary files: System processes can store temporary files in a secure directory, reducing the risk of unauthorized access.
• Improved Mobile Operator Profiles: Country and mobile operator profiles are updated.

What's being tested 2 improved · 7 fixes

• Improved Daylight saving time (DST): The update supports daylight-saving-time changes in Paraguay.
• Improved Country and Operator Settings Asset: Mobile operator profiles are brought up to date for certain operators.
• Fix Input Method Editor (IME): The Chinese IME no longer stops responding when you change its font family or font size.

What's being tested 2 new · 3 improved · 4 fixes

• New Calendar: The new calendar shows weather forecasts, holidays, and upcoming events. Its rollout is paused while Microsoft addresses issues.
• New Mail: The new Outlook for Windows app appears in the Start menu near classic Outlook. Existing settings and defaults do not change.
• Improved GB18030-2022: Windows adds support for the GB18030-2022 amendment.

What's being tested 1 new · 1 improved · 4 fixes

• New Start menu: The Recommended section begins showing some Microsoft Store apps from a curated group of developers. You can turn these suggestions off...
• Improved Country and Operator Settings Asset (COSA): Profiles for certain mobile operators are brought up to date.
• Fix App list backup: Win32 shortcuts that might not back up to the cloud are addressed.

What's being tested 5 new · 2 improved · 6 fixes

• New Start menu: The Start menu feature will let connected Android users view phone status and content and pick up recent activities on their PC. It is...
• New Notifications: You can stop suggestions that prompt you to turn off notifications from certain apps. This does not turn off the apps' notifications.
• New Windows Sandbox Client Preview: The preview adds ways to redirect the clipboard, control audio and video input, and share folders with the host while Sandbox is runnin...

What's being tested 9 new · 3 improved

• New Start menu: The account manager now offers Sign out. Select the ellipses to see other users and switch accounts.
• New Taskbar: You can share local files directly from taskbar Search results.
• New Settings: The Delivery Optimization settings page now follows the Windows 11 design.

What's being tested 4 new · 5 improved · 16 fixes

• New Taskbar: When the taskbar has keyboard focus, pressing a letter moves to an app whose name starts with that letter. Pressing the same letter aga...
• New File Explorer: You can duplicate a File Explorer tab from its right-click menu.
• New Windows Share: You can share content from Windows Share to a paired Android device.

What's being tested 18 new · 8 improved · 1 fix

• New Lock screen: Sports, traffic, and finance content can appear on the lock screen alongside weather.
• New Start menu: The Start menu has a new account manager that shows Microsoft account benefits and provides access to account settings.
• New Start menu: You can drag pinned apps from the Start menu to the taskbar.

What's being tested 1 improved · 5 fixes

• Improved Country and Operator Settings Asset (COSA): Profiles for certain mobile operators are brought up to date.
• Fix Windows Defender Application Control (WDAC): Windows correctly verifies policies for some apps that it previously failed to verify.
• Fix Windows Defender Application Control (WDAC): A certain class of WDAC policies is no longer incorrectly reported as inactive or unauthorized.

What's being tested 6 new · 4 improved · 1 fix

• New HDR background support: Version 24H2 adds support for HDR backgrounds.
• New Energy saver: Version 24H2 adds energy saver.
• New Sudo for Windows: Version 24H2 adds Sudo for Windows.

What's being tested 7 new · 3 improved · 1 fix

• New HDR background support: Desktop backgrounds can use HDR.
• New Energy Saver: Version 24H2 adds Energy Saver.
• New Sudo for Windows: Version 24H2 adds Sudo for Windows.