As per today Microsoft finally released Windows 11, which represents the latest version of Windows.
Learn more about Windows 11 on the latest blogpost from Microsoft: Windows 11: A new era for the PC begins today | Windows Experience Blog
The Windows 11 upgrade will start to be delivered to qualifying devices beginning on October 5, 2021, into 2022.
Alternatively, you can already download it here:
Software Download Center (via the Windows 11 Installation Assistant or the Media Creation Tool)
or Visual Studio Subscriptions
or the Volume Licensing Service Center (VLSC).
What are the differences between Windows 11 Home and Pro versions?
On the product page you can compare the versions and also compare it with Windows 10: Compare Windows 11 Home vs Pro Versions | Microsoft
Is my PC capable of running Windows 11?
Check out these Windows 11 Specs and System Requirements | Microsoft or pre-check it with the PC health check app from Microsoft:
How long will Windows 10 be supported?
Microsoft will continue the support of Windows 10 until October 14, 2025 (excluded LTSC and LTSB).
The upgrade to Windows 11 is currently not mandatory, at least not until the end support of Windows 10 on October 2025