Nokia does know as my gf's Nokia 6 (2017) got its June 2018 patch last week. So far the N6 got updates earlier than my Android One N7+ (TA-1046, 8.1 May 2018 patch). Kinda makes the whole A1 program a dud. Even the N5 got the June patch already.
So we have to wait for it, hopefully not Samsung-style. :)