Minecraft 1.2 is here, bringing with it an assortment of features that made me go 'awwww', in that way that people do when they see an adorable baby animal playing with another baby animal of a different species. There's a good reason for me to mention baby animals because, to my mind, the most important additions in this version are puppies, which tame wolves will occasionally receive from the ciconia lupus. Villagers will also create children occasionally. Ocelots and cats have also been added, along with a jungle biome, iron golems and a doubling of the maximum map height. Downward lie all the details and a trailer by the Hat Films chaps.
Now, here's a list of additions and tweaks.
New jungle biome
Added iron golems
New AI for mobs
Tame wolves can have puppies
Villagers will have children if there is room in their village
New map height limit (256 instead of 128)
New items and blocks
Doors have been updated so that double-doors work better with redstone
Added rare drops for mobs
Many other minor tweaks and fixes