Minecraft 1.11, the first release of the Exploration Update, is a major update to Minecraft, which was released this week with new mobs, new blocks, new items, exploration map, many bug fixes and lot of improvements/gameplay changes.
Major additions :
- New Mobs : Illagers, Vindicator, Eoker, Vex, Llama
- New Blocks : Observer, Shulker box
- New Items : Spawn eggs, Shulker Shell, Totem of Undying, Exploration Map
- Return Portals
- Woodland Mansion
Full changelog : http://minecraft-mp.com/1.11/#changes