Understanding Superseded KB Articles in Windows Updates and WSUS

Overview

This article explains the concept of superseded KB (Knowledge Base) updates in the Microsoft Windows ecosystem. It outlines why supersedence occurs, how to identify superseded updates using tools like WSUS and the Microsoft Update Catalog, and how this knowledge helps in efficient patch management and system security.

What is a Superseded KB?

A superseded KB is an older Microsoft update that has been replaced by a newer one. The newer KB includes the same fixes and improvements from the previous update, plus additional changes or security enhancements.

In simple terms: If a newer update is available and includes everything from an older one, the older one is marked as superseded.

Example Scenario

• KB5060826 – Released in June 2025

• KB5062552 – Released in July 2025
  → The July update KB5062552 includes all fixes from KB5060826 and additional updates. Therefore, KB5062552 supersedes KB5060826.

 If KB5062552 is installed, there's no need to install KB5060826 separately.

How to Identify Superseded KBs

1. Using WSUS (Windows Server Update Services)

You can view superseded updates directly in the WSUS Console:

Steps:

1. Open the WSUS Management Console

2. Navigate to Updates > All Updates

3. Right-click the column headers and enable the “Supersedence” column

The Supersedence column will show whether an update is:

• Superseded by another KB

• Still current

Official Microsoft WSUS Reference:
 https://learn.microsoft.com/en-us/windows-server/administration/windows-server-update-services/get-started/windows-server-update-services-wsus

2. Using the Microsoft Update Catalog

You can also check supersedence on Microsoft’s official update repository.

Steps:

1. Go to https://www.catalog.update.microsoft.com

2. Enter the KB number (e.g., KB5060826) in the search bar

3. Click on the relevant result

4. Scroll down to “Package Details”

5. Look under “This update has been replaced by the following updates”

https://www.catalog.update.microsoft.com/Search.aspx?q=KB5060826

Why Superseded KBs Matter

Understanding which KBs are superseded helps:

• Ensure only the latest and most relevant updates are installed

• Avoid redundant or outdated patches

• Simplify troubleshooting and compliance checks

• Improve overall system performance and patch visibility

Conclusion

Superseded KBs are older updates replaced by newer ones that offer the same or improved fixes. It's important to always deploy the most recent applicable KB, especially when managing updates in WSUS or similar tools.

Regularly reviewing supersedence helps streamline patching, reduce unnecessary installations, and maintain a secure and compliant environment.

If you need help identifying or applying updates, feel free to contact SecPod Support — we’re happy to assist.