http://breezewiki.vernccvbvyi5qhfzyqengccj7lkove6bjot2xhh5kajhwvidqafczrad.onion/minecraft/wiki/Zombie
Zombies have been given the ability to 'see' through windows. If a zombie is exposed to sunlight and bursts into flames, it now search for a body of water to douse the flames. Zombies now hunt and attack villagers and now attack doors (breaking them on Hard difficulty ).