Patch Tuesday for win7-8...
neowin[.]net/news/patch-tuesday-here039s-what039s-new-for-windows-7-and-windows-81-2
What's notable is the continuing issue for win7, where the update may break networking. The linked Neowin page includes the link for the security-only update without this issue.
Windows 10 1809, 2nd try...
neowin[.]net/news/after-over-a-month-microsoft-re-releases-the-windows-10-october-2018-update
blogs[.]windows[.]com/windowsexperience/2018/11/13/resuming-the-rollout-of-the-windows-10-october-2018-update/
Today it's unknown [outside of Microsoft] how aggressively Microsoft will push this upgrade/update out via automatic updates -- their blog suggests it will be at a very measured, tempered pace, as they collect data on which hardware works OK, & what has problems. Of course they collect that data based on what the win10 1809 installation routine reports back to home base, so if you're one of the lucky few who get targeted 1st using your particular hardware &/or device, you're the canary in the mine that warns everyone else. And sadly when/if things go badly, those canaries are screwed. So yeah, if you're running win10 pro, if you want to be cautious, pause this version upgrade until more reports are in.
If you're anxious to get the upgrade out of the way OTOH, checking for updates in Windows Update **may** get you the new version, or not -- Microsoft is throttling those updates, so it's more a matter of luck whether it shows up for you or not. You can download the ISOs etc. using the usual Microsoft Windows upgrade tool, though I'd expect there will be a little bit of a delay before this is generally available -- it took about 1/2 - 3/4 of a day a month ago when they 1st tried releasing 1809.
Finally, if you're running win10, don't want the version upgrade just yet, but Windows Update isn't showing today's security updates for your version of win10, download & run the updates manually rather than clicking Check for updates -- you can find the KB numbers along with links to download in front page articles at neowin[.]net for example.