Microsoft has published a notification with a reminder that Windows Server 20H2, the last release in the Semi-Annual Channel, is about to reach its end of support on August 9, 2022.
Semi-annual channel RSS
A recently updated Windows Server release information document suggests that Microsoft will retire semi-annual releases starting with Windows Server 2022, moving completely to LTSC releases.
Today, Microsoft announced that it is replacing the Windows 10 Current Branch and Current Branch for Business with the Semi-Annual Channel to align with Office 365 ProPlus feature updates.