Introduction to Microsoft’s Update Changes

Microsoft is making notable adjustments to the way it delivers security updates and new features for Windows 11. This evolution aims to make the monthly updates smaller and more manageable, particularly benefiting administrators of large organizations. Here’s what you need to know about these changes.

New “Checkpoint Cumulative Updates”

Traditionally, Microsoft has delivered a single, growing update package each month on Patch Tuesday. Moving forward, they will introduce “checkpoint cumulative updates.” This means that rather than a single, ever-increasing file, updates will be divided into smaller packages that build on previous checkpoints.

Benefits for Administrators

The primary goal of this new system is to streamline the update process, making it “smaller, faster, and more sustainable.” By breaking updates into incremental binary differentials, administrators will find it easier to manage updates across large numbers of devices. Over a Windows release’s lifecycle, multiple checkpoints will be established, allowing the servicing stack to merge checkpoints and only download missing content.

Smaller Update Packages

Currently, cumulative updates grow larger each month, leading to increased download and installation times. For example, the cumulative Microsoft update package for Windows 11 version 22H2 increased from 302MB in July 2023 to 728.7MB by July 2024. With checkpoint updates, users could have installed a single 622MB package in December and then received smaller, incremental updates averaging less than 100MB each month thereafter. This approach reduces the total download size significantly.

Availability and Testing

Microsoft is initially rolling out the new servicing stack as part of Windows 11, version 24H2. This new system is currently available to Windows Insider Dev Channel testers. Public availability is expected in late 2024 or early 2025, with beta testers getting an early preview.

Minimal Impact for General Users

For most users, the transition to checkpoint updates will be seamless. Those who use Windows Update for managing their home or business PCs will likely not notice significant changes, aside from potentially faster update installations. However, IT professionals managing corporate networks will need to keep track of the new update system and ensure proper delivery using their existing tools.

No Changes for Windows 10 Users

Users who have opted to remain on Windows 10 will not be affected by these changes. They will continue receiving cumulative updates in the traditional format until Windows 10 reaches its end-of-support date in October 2025. Post-support, users will have to decide on their update strategy, but it will not involve the new checkpoint system.

Conclusion

Microsoft’s shift to checkpoint cumulative updates represents a significant change in how Windows updates are delivered. This new approach aims to reduce the size and complexity of monthly updates, providing a more efficient process for both individual users and large organizations.