If you’re familiar with the landscape of Windows updates, you know that Microsoft has been diligent in keeping users informed about the various types of updates available. In light of the increasing sophistication of cyber threats, particularly those leveraging artificial intelligence to exploit vulnerabilities, the frequency and importance of these updates have grown significantly.
Understanding Windows Update Types
At the forefront of these updates is Patch Tuesday, a monthly ritual occurring on the second Tuesday of each month. For instance, the KB5094126 update was rolled out to Windows 11 users on June 9. This update encompasses both security and non-security content, and its cumulative nature means that installing the latest version automatically includes all previous updates.
IT administrators have a suite of tools at their disposal, including Autopatch, Intune, and Windows Server Update Services (WSUS), to facilitate the deployment of Patch Tuesday updates across their organizations. Additionally, the hotpatching feature allows for the swift application of security updates without necessitating a device restart. These updates are often referred to by various names, including “B” release, quality update, security update, monthly cumulative update, and latest cumulative update (LCU).
Following Patch Tuesday, we encounter optional non-security preview updates, which are released in the fourth week of each month. These updates serve as a testing ground for IT admins, allowing them to validate the upcoming Patch Tuesday releases before broader deployment. For users on non-IT-managed devices, these updates can be accessed through Settings > Windows Update > Advanced options > Optional updates. While they may also be known as “C” or “D” releases, the term “optional non-security preview update” has become the preferred nomenclature.
Lastly, there are out-of-band (OOB) updates, which can be issued at any time to address significant issues or security vulnerabilities. Like their counterparts, OOB updates are cumulative, with some being strongly recommended while others remain optional. Enterprise customers can utilize their regular update management tools to implement these updates effectively.
Beyond these updates, Microsoft continues to enhance Windows 11 through annual updates, monthly updates, and offerings from the Microsoft Store. The company employs Controlled Feature Rollout (CFR) to stagger the rollout of new features, with enterprise capabilities typically disabled by default. Regardless of the update schedule, Microsoft emphasizes the importance of keeping systems updated and secure, encouraging users to participate in the Windows Insider Program (WIP) for early access to the latest features in Windows 11.
