Minecraft version 1.7 brings a lot of changes, mostly to the way the world is generated. It was released on October 25th 2013.
Terrain and Biome changes
There are a number of new biomes to explore! There are new biomes, including Savannah, Mesa and Roofed Forest, and also changes to some old biomes.
The new biomes bring some new blocks: red sand in the Mesa biome, and a new kind of dirt called Podzol in a new biome called Maega Taiga.
Thre are lots of new flowers to pick; all of which can be turned into dyes.
Fishing will be more fun with three new types of fish to catch, enchanted fishing rods and assorted junk and treasure to catch.
Nether Portals can now be built in a variety of shapes and sizes.
A lot of bugs have been fixed, includng the one that causes black shadows on the side of your hills.