This security update contains fixes and quality improvements from KB5122871 (released September 8, 2026) and the out-of-band update KB5129235 (released September 14, 2026). The following summary outlines key issues addressed by this update. Also, included are available new features.

View the version history of an item or file in a list. When versioning is enabled in your list or library, you can store, track, and restore items in a list and files in a library whenever they change.

All but the original XBOX Wireless Controller can take updates wirelessly without connecting with a USB cable. This controller has a small, circular 3.5-mm port on the bottom of the controller (if your controller has this port, you can only update via USB cable).

Many PC games let you play with an XBOX Wireless Controller instead of a keyboard or mouse. You can connect your controller to a Windows device by using a USB cable, the XBOX Wireless Adapter for Windows or Bluetooth.

Use the XLOOKUP function to find things in a table or range by row. For example, look up the price of an automotive part by the part number, or find an employee name based on their employee ID.

Learn how to turn Low Power Mode on/off. Enable/disable Background App Refresh in the iOS settings: Settings > Scroll down to our app > toggle on/off Background App Refresh. Don't close the app. Apple recommends that customers leave the OneDrive app running in the background.

Release date: October 13, 2026. Version: 15.0.4500.2. This security update contains fixes and resolves vulnerabilities. To learn more about the vulnerabilities, see the following security advisories: The Microsoft SQL Server components are updated to the following builds in this security update: Important.

Passkeys are incredibly easy to use and intuitive, eliminating the need for complicated password creation processes and the hassle of remembering them. Also, passkeys are unique to each website or application, so you don't have to worry about someone using your passkey to access other services.

Team and channel owners can archive a created channel within a team when it’s no longer active but is needed for reference or to reactivate in the future. The conversations and files in the channel become read-only and you’ll still be able to search for and within it.

View languages with text-to-speech capabilities & their different voice options. Within Windows 10 and Windows 11 settings, you can install different language packs to translate and read content aloud in different languages. To install a new language, Open the Language or region settings. Select Add a language.