Mojang has released Minecraft update 1.4.6, bringing lots of Christmas surprises and goodies to the hit PC game. The big additions in this update are fireworks, enchantable books, and a "mysterious Christmas surprise."
The vague post on the blog also listed "many issues" as being fixed, including tweaks to enchantments and an option to enable touchscreen input for buttons and inventory.
Although Mojang didn't list the major changes on their site, Reddit's redstonehelper put together a list of the changes.
While you can grab version 1.4.6 here, Mojang remains are hard work on Minecraft 1.5 - The Redstone Update which is set to release in early 2013.
Via: Minecraft update 1.4.6 released, complete change-log detailed