Windows 10 Version 1909 hit 22.6 percent usage this month, AdDuplex says, up from 15.2 percent this past January.

“[Windows 10 version 1909] is now on 22.6 percent of Windows 10 PCs,” AdDuplex notes in its latest report, which is based on a survey of about 90,000 PCs. “Interestingly, the pattern of the last update cycle seems to be repeating: The bulk of the growth comes from people upgrading from an OS that was one release behind [in this case Windows 10 version 1809,] and not the last release.”

Windows 10 version 1909 is still the second-most-often-used Windows 10 version, behind version 1903, whose usage is flat month-over-month at 52.9 percent. Overall usage of version 1909 grew over 50 percent since January.

The most interesting stat here, of course, is that over three-quarters of all Windows 10 PCs out in the world are now running a version of the OS that Microsoft released in 2019. Combined, Windows 10 versions 1903 and 1909 account for 75.5 percent of all versions currently in use.