Microsoft has officially announced the Windows 10 21H2 feature update (build 19044.1147) Microsoft has released the first preview to Insiders for testing. Microsoft will continue to release Windows 10 feature updates through October 2025. Most enterprise users will likely be staying with Windows 10 until the bugs are worked out of the new operating system. Microsoft also states that they will be launching the next version of Windows 10 Long-Term Servicing Channel (LTSC) based on the update at the same time, and it will have five years of servicing.
Source: https://www.bleepingcomputer.com/news/microsoft/windows-10-21h2-preview-released-with-new-security-features/