Tfs-update_4a-pc.zip -

Use the command line with the /CheckInstall flag (if available) or verify the file version in your installation directory to ensure the patch was applied correctly. The Path Forward: Time to Upgrade?

This is non-negotiable. Ensure you have a consistent set of backups for all Azure DevOps/TFS databases. TFS-Update_4a-pc.zip

Before you unzip TFS-Update_4a-pc.zip and run the installer, ensure you have completed these steps: Use the command line with the /CheckInstall flag