New items include: Sniper Bandana Hair, Heavy Bandana Hair, Spy Disguised Hat, Heavy Lumberjack Hat, Demo Hendrix Hat, Engineer Hair, Engineer Blueprints (this?), Mighty Pirate, The Bootlegger (boots), The Scotland Shard (bottle), Bloody Bombs (glasses), Solder Sea Captain Hat, Pyro Sailor Hat, Heavy Gym Hair, Scout Hotdog Hat, Pyro Birdcage Hat (this?), Medic Stahlhelm Hat, Scout Backwards Cap, Sniper Necklace (necklace), Flair Buttons (equippable buttons), Medic Pocket Square, Medic Stethoscope, Spy Inspector Hat, Sniper Cork Hat, Pyro Flamenco Hat, Engineer Cranial Claw, Spy Specs, Scout 3D Glasses, Solder Cowboy Hat, Pyro Conscience (maybe this), Scout Provision Hat.
HiFive Taunt Enabler added, seems to be activated by holding down the taunt button for a few seconds.
The Pummeling Picket has "item_class": "saxxy" and "item_type_name": "TF_Weapon_Sign", and also has customizable textures. Can be used by every class except the Spy and Engineer.
The Bootlegger, Scotland Shard, Bloody Bombs, Mighty Pirate are part of the 'Swashbucklers Swag' set, probably this pack.
The Pocket Medic can now be equipped by the Soldier.
Also added are Photo Badge, ID Badge, Stampable Medal, which have a "can_customize_texture": true, attribute.
Customize Texture Tool is a new tool you can use to create custom textures.
An expiration date attribute was added, use unknown.
Christmas Key 2010 was added, which seems to be a placeholder for a new holiday key.
Athletic Supporter and Superfan made craftable.
The beta weapons were added, with beta names, which seems to be a mistake.