Horse Update

The Horse Update is a major update labeled as 1.6. It was released on 1st July 2013, and adds many new features such as horses, leads, coal blocks, carpets, resource packs and a new launcher.

Development began shortly after 1.5.2 was released. Eighteen development snapshots were released, from to. Twenty-six iterations of the new launcher have been released so far during this time period, from 0.1 to 1.0.8. Nearer the end of the snapshot cycle for the 1.6 update, Mojang focused primarily on fixing bugs, rather than adding new features.

The official name for the update - the Horse Update - was only released a week prior to the 1.6 prerelease on the Minecraft update tumblr (which is viewed in the launcher).

Mojang released the 1.6 pre-release on June 25, 2013. This added an easter egg where mobs named "Dinnerbone" or "Grumm" were flipped upside down.

Notable features
In the 1.6.1 update a new Minecraft launcher was implemented, with an improved LWJGL code and the ability to auto-update.

This update features the addition of horses, donkeys, and mules: tamable mobs which can be ridden upon and bred, which come in a variety of colors.

You can feed your horse with hay bales and other food items, and equip your horse with a saddle and horse armor to ride and protect them. Leads can be used to walk or tie up any mob to a fence. Name tags allow any mob to be named with the exclusion of adult villagers and prevents them from despawning.

Carpets were added to cover a floor without raising it an extra layer. Coal blocks can be used for compact coal storage and provide more fuel than the coal used to create it alone. Hardened Clay can be dyed with the 16 available colors giving decorative Stained Clay blocks that don't burn up like wool does.

New Features

 * Added Horses
 * Added Donkeys, Mules
 * Added Horse Armor
 * Added Leads
 * Added Carpets
 * Added Hardened Clay, Stained Clay
 * Added Block of Coal
 * Added Name Tags
 * Added Hay Bales
 * Added Health Boost, Saturation and Absorption effects
 * Added and  commands
 * Added  and   gamerules.
 * Texture packs are now Resource Packs that can also hold sounds, fonts, languages and texts.
 * Food meter is now drained when healed by full food meter
 * Removed Herobrine (Running joke)
 * Redesigned Launcher

Video
Watch the overview video below to learn more about the 1.6 update.