Windows 10 October 2018 Update was re-released last month but its adoption is still very slow according to the latest data from AdDuplex. Windows 10 April 2018 Update continues to be the most used Windows 10 operating system in December 2018. The same data also revealed that Microsoft’s Surface Go and Surface Pro 6 is getting popular and the devices are now in 4th and 5th place respectively. The company report suggests that the October 2018 update has more than doubled its share since last month.
Source: https://www.bleepingcomputer.com/news/microsoft/adduplex-the-october-2018-update-is-now-on-66-percent-of-windows-10-pcs/