Is Microsoft working on a windows 12, after windows 11

As of my last update in October 2023, Microsoft had not officially announced a "Windows 12." The company had been focusing on Windows 11, which was released in October 2021, and has continued to release updates and new features for that operating system. Microsoft typically does not disclose detailed plans for future operating systems until they are ready for public announcement. For the most recent updates, it's best to check Microsoft's official communication channels or trusted technology news sources.