User summary:
The October 29th playtest package updated the Classes, supporting levels up to 10. It also includes a new adventure, and many new monsters were added to the Bestiary.
This playtest packet included:
Playtest Packet (2012-10-29)
D&D Next Playtest Update ("Read First", 2 pages)
How to Play (24 pages)
Creating a Character (5 pages)
Classes (14 pages)
Races (8 pages)
Backgrounds and Skills (10 pages)
Specialties and Feats (7 pages)
Maneuvers (4 pages)
Spells (20 pages)
Equipment (11 pages)
Magic Items (31 pages)
DM Guidelines (15 pages)
Bestiary (54 pages)
Reclaiming Blingdenstone (40 pages)
Dungeon Module B2: The Caves of Chaos (not updated, 23 pages)
Dungeon Adventure X1: The Isle of Dread (44 pages)
Character sheet (2 pages)
Pre-gen: Dwarf Fighter (2 pages)
Pre-gen: Elf Wizard (2 pages)
Pre-gen: Halfling Rogue (2 pages)
Pre-gen: Human Cleric (2 pages)
Pre-gen: Human Fighter (1 page)