https://www.bleepingcomputer.com/news/microsoft/windows-10-what-to-expect-in-upcoming-feature-updates/

Microsoft previously confirmed that Windows 11 wouldn't be released, and the company will keep updating Windows 10 with new features, improvements, fixes, and bugs.

"Right now we're releasing Windows 10, and because Windows 10 is the last version of Windows, we're all still working on Windows 10", stated Microsoft developer evangelist Jerry Nixon at the Ignite 2015 conference.