This page is about upcoming features that have been announced by Mojang and 4J Studios employees. For the official change list, see 4JStudios' Minecraft Forum thread.
'Mash-up pack' will be a combination of resources (textures, BGMs, and so on) and "themed worlds" (world data). It also makes Minecraft look like another game. It has also been confirmed that the full versions of Mash-Up Packs will not be free.[3]
Features brought forward:
1.3.1 feature: Added dispensing Boats and Minecarts to Dispenser.[4]
1.3.1 Feature: Dispensers will now exempt liquids from a filled bucket when given a redstone but do not properly fill empty buckets with a dispensed liquid due to a bug.[8]
1.4.6 Feature:[9] Item name appears above hotbar when switching to it.
1.1 Feature: Bows are enchantable
1.3 Feature: Based on newer Enchanting system. Maximum level for enchantment is 30 instead of 50 but the player can surpass level 50 and go up over 100.[10]
1.3 Feature: You'll receive experience from smelting and/or mining ores (e.g. iron ingots when smelting, redstone ores when mining).[10]