The October 2018 Update has been released. Note, however that it is in a phased and controlled rollout.
While we encourage you to wait until the update is offered to your device, if you’re an advanced user on an actively serviced version of Windows 10 and would like to install the Windows 10 October 2018 Update now, you can do so by manually checking for updates. In the Search box in the taskbar, type “Check for updates.” Once there, simply click “Check for updates” to begin the download and installation process. We are also streamlining the ability for users who seek to manually check for updates by limiting this to devices with no known key blocking issues, based on our ML model. If we detect that your device has a compatibility issue, we will not install the update until that issue is resolved, even if you “Check for updates
.” You can also watch this video that outlines how to get the October 2018 Update
See How to get the Windows 10 October 2018 Update - Windows Experience Blog
for additional information about the update, including "Improving the update experience".