Windows 10 October 2018 Update (version: 1809), which was released by Microsoft on 2nd October, has been pulled from Windows Update and Microsoft site due to some critical issues reported by the first set of users.

The rollout has been paused for some time while Microsoft investigates the isolated reports of users missing some files after updating to the latest version.

Microsoft released the next major feature update (version: 1809) of Windows 10, which is known as Windows 10 October 2018 Update The key feature list includes: Dark Theme for File Explorer, new snipping experience, cloud clipboard and more.

If you haven't receive the upgrade notification, head over to: Settings | Update & security | Windows Update | Check for updates.