[Update] November 16, 2018
The latest firmware for U.S. Cellular LG K8 2017 (aka US215) is software version US21512f.
In last month, The European version of the LG K8 2017 (M200N) received the Oreo Update. According to our tipster, The U.S. Cellular LG K8 2017 (aka US215) will receive the Android Oreo Update in Q1 2019.
The Android Nought firmware for LG K8 2017 US215 is now available for download. You can grab it from below link.
Software Version: US21512F_02
OS Version: N
File Name: US21512f_02_0809.kdz
KDZ File size: 1877874167
It is reported that the Update builds US21512f is the last software update for the LG K8 2017 US215. The next update for the device will be Android Oreo 8.1 software version US21520A.