Microsoft released KB5006738, the monthly “C” release preview cumulative update with non-security improvements and fixes for Windows 10 Versions 2004, 20H2 and 21H1.
IMPORTANT: Starting in October 2021, there will no longer be non-security releases (known as "C" releases) for Windows 10, version 1909. Only cumulative monthly security updates (known as the "B" or Update Tuesday release) will continue for Windows 10, version 1909.
Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest LCU. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.
For information about the types of updates released by Microsoft each month see Windows 10 update servicing cadence primer.
Update: To get the update, go to Settings > Update & Security > Windows Update. The link to download and install the update can be found in the Optional updates available area. To get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows 10 update history
IMPORTANT: Starting in October 2021, there will no longer be non-security releases (known as "C" releases) for Windows 10, version 1909. Only cumulative monthly security updates (known as the "B" or Update Tuesday release) will continue for Windows 10, version 1909.
Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest LCU. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.
For information about the types of updates released by Microsoft each month see Windows 10 update servicing cadence primer.
Update: To get the update, go to Settings > Update & Security > Windows Update. The link to download and install the update can be found in the Optional updates available area. To get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows 10 update history