Support for ZBT-WE1326 (was: New product! 2.4GHZ/5.8GHz Openwrt 802.11AC dual band dual core wifi router with SD card slot)

I emailed ZBT’s sales group, and asked them if they had the later firmware then what it ships with at 14.07. He sent me:

mt7621-openwrt-512m-20171208.bin

Is there anybody that can verify which version OpenWRT this is?