Microsoft published updated the following Windows Server containers: Windows Server version 20H2, Windows 10 version 20H2, Windows Server version 2004, Windows 10 version 2004, Windows Server version 1809, Windows 10 version 1809, and Windows Server 2016.

KB5004638: Windows Server containers for July 2021 Out-of-band

As part of servicing each month, we publish updated Windows Server Base OS container images. With these updates, you can automate building updated container images or manually update them by pulling the latest version. Windows Server containers do not have a servicing stack and do not support in place updates like Windows Server or Windows client. Therefore, every month we rebuild the Windows Server Base OS container images with the updates and publish the updated container images.

For more information on update best practices, please refer to  Update Windows Server containers.

Available container images

Windows Server, version 20H2 and Windows 10, version 20H2

Container	Version	KB	Architecture	Languages
Windows Server, version 2004 Server Core Container Windows Server Core	19041.1083	Cumulative KB  5004945   SSU_version_19041.1081	x64	en-us
Windows Server, version 2004 Nano Server Container Nano Server	19041.1083	Cumulative KB  5004945   SSU_version_19041.1081	x64	en-us
Windows Server, version 2004 Windows Container Windows	19041.1083	Cumulative KB  5004945   SSU_version_19041.1081	x64	en-us

Windows Server, version 2004 and Windows 10, version 2004

Container	Version	KB	Architecture	Languages
Windows Server, version 2004 Server Core Container Windows Server Core	19041.1083	Cumulative KB  5004945   SSU_version_19041.1081	x64	en-us
Windows Server, version 2004 Nano Server Container Nano Server	19041.1083	Cumulative KB  5004945   SSU_version_19041.1081	x64	en-us
Windows Server, version 2004 Windows Container Windows	19041.1083	Cumulative KB  5004945   SSU_version_19041.1081	x64	en-us

Windows Server, version 1809, Windows 10, version 1809, and Windows Server 2019

Container	Version	KB	Architecture	Languages
Windows Server, version 1809 Server Core Container Windows Server Core	17763.2029	Cumulative KB  5004947  SSU KB  5003711	x64	en-us
Windows Server, version 1809 Nano Server Container Nano Server	17763.2029	Cumulative KB  5004947  SSU KB  5003711	x64	en-us
Windows Server, version 1809 Windows Container Windows	17763.2029	Cumulative KB  5004947  SSU KB  5003711	x64	en-us
Windows 10, version 1809 IoT Core Container Windows loT Core	17763.2029	Cumulative KB  5004947  SSU KB  5003711	x64	en-us
Windows 10, version 1809 IoT Core Container Windows loT Core	17763.2029	Cumulative KB  5004947  SSU KB  5003711	Arm	en-us
Windows Server, version 1809 Nano Server Container Nano Server	17763.2029	Cumulative KB  5004947  SSU KB  5003711	Arm	en-us

Windows Server 2016 

Container	Version	KB	Architecture	Languages
Windows Server 2016 Server Core Container Windows Server Core	14393.4470	Cumulative KB  5004948  SSU KB  5001402	x64	cs-cz, de-de, en-us, es-es, fr-fr, hu-hu, it-it, ja-jp, ko-kr, nl-nl, pl-pl, pt-br, pt-pt, ru-ru, sv-se, tr-tr, zh-cn, zh-tw

KB5004638: Windows Server containers for July 2021 Out-of-band