Windows Server 2022 LTSC 21H2: December 2025 Updates and Beyond The December 2025 update for Windows Server 2022 LTSC, Version 21H2 (x64)
No update is perfect. The December 2024 release had two documented known issues:
concept. It treats the hardware, firmware, and OS as a singular, defensive organism. In this version, security isn't a "feature" you enable; it is the atmospheric pressure of the environment. From the Boot DMA protection to the VBS (Virtualization-based Security), it assumes the world is hostile and builds its walls accordingly. Final Reflection Windows Server 2022 LTSC 21h2 is to choose the path of the Modern Stoic windows server 2022 ltsc 21h2 x64 english decem updated
Cause: The December hardening of NETLOGON combined with certain network switch configurations.
As of early 2026, Microsoft has continued to release monthly cumulative updates. The most recent version available for this specific LTSC branch is Build 20348.4893 , released via on March 10, 2026. Microsoft Support Deployment Best Practices Verify Builds: Admins can check their current version by running or using the Get-ComputerInfo PowerShell command. Latest ISOs: For new deployments, it is recommended to use the latest ISO media Windows Server 2022 LTSC 21H2: December 2025 Updates
: This is the primary cumulative update for December 2025, containing essential security hardening and performance bug fixes. Servicing Stack Update (KB5068786)
Microsoft has released Windows Server 2022, a long-term servicing channel (LTSC) version that provides a reliable and secure server operating system for organizations. The latest update, version 21H2, was released in December, bringing new features, improvements, and security enhancements. Use Server Core for most production roles to
Updates for this version can be manually retrieved via the Microsoft Update Catalog.