From Lifecycle FAQ - Windows:
New versions of Windows 11 will be released once per year. Customers should always install the latest version before the current version reaches end of servicing to remain supported by Microsoft.
Servicing Timeline will be 36 months with 1 release per year for the following versions:
Windows 11 Enterprise
Windows 11 Education
Windows 11 IoT Enterprise
Servicing Timeline will be 24 months with 1 release per year for the following versions:
Windows 11 Pro
Windows 11 Pro Education
Windows 11 Pro for Workstations
Windows 10 Home*
*Home edition does not support the deferral of feature updates and will therefore typically receive a new version of Windows 11 prior to the end-of-servicing date shown.
