One can no longer place a dispenser, pointing upwards, at one block below the grass surface level, and place bonemeal in it, so as to 'pop off' some tall grass, ferns and flowers on the surface (random layout in 7x7 area out from centre) without freezing and crashing the game upon activation.

Also, after restarting the game, one will see that some of their nearby animals and villagers will disappear, along with all of their nearby iron golims.