Microsoft is changing how Windows Server 2025 Patch Tuesday updates are labeled.
Starting in January 2026, Server 2025 will get its own KB identifiers, separate from Windows 11 24H2 and 25H2, so you do not have to second-guess which patch applies where.
Microsoft says the installation and management process stays the same. This is mainly for clarity.
For now, December 2025 still uses the same KB5072033 package for Windows 11 and the “Microsoft server operating system version 24H2” entry in the Update Catalog.
Windows 11's January 2026 Patch Tuesday roll out kicks off on January 13, but it's not going to be a massive release, as engineers have just returned from the vacations.





































