I have a feeling, That I will more than likely do this for every major update for minecraft. So if you have any questions on this, ill try to anser it as best as i can.
Added Redstone Comparator (used in Redstone logic)
- Added Hopper (collects items and moves them to containers)
 - Added Dropper (similar to Dispensers, but always drops the item)
 - Added Activator Rail (activates TNT Minecarts)
 - Added Daylight Sensor
 - Added Trapped Chest
 - Added Weighed Pressure Plate
 - Added Block of Redstone
 - Added Nether Brick (item)
 - Added Nether Quartz and ore
 - Added Block of Quartz, with half blocks and chiseled variants
 - New command: /scoreboard
 - New command: /effect
 - Containers and mobs can have custom names
 
- Inventory management has been changed, for example you can drag-place items over slots
 - Texture packs now have separate images for each block and item, and can have animations
 - Nether Quartz Ore now spawns in the Nether
 - Smooth lighting now has three settings (none, minimal, maximum)
 - More detailed death messages
 - Some hostile mobs now are harder in Hard difficulty
 - Many, many, bug fixes
 
- Removed Herobrine (Again? Really Herobrine? Damn it! STAY OUT OF OUR MINECRAFT!!!)