Since its launch in October 2021, Windows 11 has evolved significantly through a series of annual feature updates and monthly quality updates. Microsoft has shifted to a more predictable cadence: one major feature update per year (in the second half of the year) for Home and Pro editions, with a slower "Long-Term Servicing Channel" for enterprise customers. This article provides a comprehensive, chronological look at every significant Windows 11 update, including version numbers, build numbers, and the most impactful new features.
Windows 11 follows a new naming and versioning scheme compared to Windows 10. The primary identifier is , "Version 23H2" , etc., which corresponds to the year and half of release (H1 = first half, H2 = second half). Internally, Microsoft uses build numbers (e.g., 22621.1) and cumulative update KB numbers for monthly patches. windows 11 update history