Increase in Bots
I've seen a lot of bots in ARAM and Co op vs AI lately with increased 'fake player' ai. They play just as badly as the old bots, except a lot of them they won't attack enemy champions at all. They used to say 'Gj' 'Frozen' and 2-3 other words, but now they will call lane and say gg at the end. i just saw one who went 0/0/0 in multiple games and i can see why, they just stand behind turret and attack minions, never attempting to attack the enemy champ. Some of them will spam ping fall back if you go in 'their' lane but they won't ever attack enemy champs.
I suppose it's slightly better than the old bots who would turret dive constantly going 0/20/0 and say 'Gj' or 'Frozen' every time they died, except they aren't contributing to the game at all either, they just farm minions and avoid all contact with enemy champions. if you go in lane to help them 9/10 times they will walk back behind turret/minions and not react to anything at all.