Sorry for the octuple post, (
) but I'm announcing that update 1.4 will come out this Halloween!
Planned features:
1. New boss mob, "the Wither".
2. Item frames to display items, blocks, maps, clocks, etc.
3. [Mossy] cobblestone walls.
4. Dyeable leather armor.
6. New potions: Invisibility and night vision.
7. Dyeable wolf collars.
8. Wooden buttons.
9. "Work in progress block" (A.K.A "beacon block"), which can be placed atop a pyramid made of iron, diamond, gold, or emerald, will effect nearby mobs, and as the name suggests, will shine a bright beacon of light into the sky.
10. Adventure mode.
11. Command block (for server owners).
12. Maps can be expanded.
13. Carrots and potatoes.
14. Trapdoors can be placed of the upper half of a block.
15. Flower pots.
16. New light engine.
17. Hostile mobs can pick up items and can use weapons/wear armor.
18. Skeleton skulls can be used as decoration.
19. Lectern for books.
20. Zombies can infect villagers.
21. Villagers are more self-aware.
22. Baby zombies/zombie pigmen.
23. Modding API (full mod support).
24. Entities will go through Nether portals.
25. Superflat spawning options.
26. Sheep spawn colored more often.
27. Pigs can go 5 miles per second.
28. Corner stairs.