AT&T is now distributing the update to Android 8.0 Oreo to the LG V30 units it has sold. This follows the Oreo release for Samsung's Galaxy Note8 yesterday, and thus the carrier has covered both Korean companies' respective flagships from last fall.
The update for the V30 also features the latest security fixes. After installing it you'll have the March 1, 2018 security patch level. The new software version is H93120c.