AT&T LG G5 H820 received Android Oreo 8.1 Update?

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In September, LG official released the Android 8.1 Oreo kernel source code for the AT&T variant of the LG G5 H820.

According to an LG G5 H820 User at XDA forum,  The LG G5 H820 on AT&T received the Android Oreo 8.1 Update.

The Oreo Update for the AT&T LG G5 H820 is software version H82030A, and it includes the August 2018 Android Security Patch.

LG USA official website also mentions that the latest software for AT&T LG G5 H820 is Software Version H82030A – Android OREO.

But the AT&T Support page for LG G5 H820 said that the current Update for the device is Android 7.0 Nougat. – Software Version H82020t

So which one is correct? Is AT&T rolling out the Android Oreo 8.1 Update for the LG G5 H820?  When I check the Software Update status on my LG G5 H820, It still says the latest firmware is Android 7.0 Nougat.