Hi amitsharma7868,
There is no Windows 11 yet & I doubt that there ever will be one.
The Windows 10 operating system introduces a new way to build, deploy, and service Windows: Windows as a service. Microsoft has reimagined each part of the process, to simplify the lives of IT pros and maintain a consistent Windows 10 experience for its customers. These improvements focus on maximizing customer involvement in Windows development, simplifying the deployment and servicing of Windows client computers, and leveling out the resources needed to deploy and maintain Windows over time.
Prior to Windows 10, Microsoft released new versions of Windows every few years. This traditional deployment schedule imposed a training burden on users because the feature revisions were often significant. That schedule also meant waiting long periods without new features — a scenario that doesn’t work in today’s rapidly changing world, a world in which new security, management, and deployment capabilities are necessary to address challenges. Windows as a service will deliver smaller feature updates two times per year, around March and September, to help address these issues.
In the past, when Microsoft developed new versions of Windows, it typically released technical previews near the end of the process, when Windows was nearly ready to ship. With Windows 10, new features will be delivered to the Windows Insider community as soon as possible — during the development cycle, through a process called flighting — so that organizations can see exactly what Microsoft is developing and start their testing as soon as possible.
As such, Windows 10 will continue to evolve with new features/fixes be developed & pushed as service patches & upgrades.
https://docs.microsoft.com/en-us/windows/deploy...
Regards,