We've gotten very very close: https://blockchair.com/bitcoin-cash/block/545921
yes, several pools have mined 8 MB blocks (viaBTC, BMG etc), not just today. but they aren't going beyond it, they have a soft cap.
the mempool grew to 10 MB a while ago but in the end an 8 MB block was mined.
Source?
it is not a coincidence largest blocks so far get closed at ~7,998.642 kbs. the mempool has exceeded that.
The stress test is just getting started. Patience 79b79aa8
