Mob spawning may be fixed now. Mobs now do not spawn if the light of the area is too high, as opposed to one spot. This means that cities should be safer. Mobs no longer spawn on leaves. You can now use beds and enchantment tables placed on the Nexus. Trap doors can now be protected. Snowballs no longer create ice at the bottom of a lake. Torch-equipped arrows should now more reliably place torches. Chest protection should now support players with 16-character names.
