Survivalcore (See Description)

Increased Player Melee Attack Hitbox size by 25% (I think. The config description was weird)
Fast Weapon Attacks no longer have reduced knockback (Dual Wielding, Knives, etc.)
Increased Dual Wield Attack Speed Bonus from 20% to 50%

THE REST OF THE CHANGES BELOW WILL ONLY APPLY TO NEW WORLDS 

Bone Meal Effectiveness on trees increased by 1000%
Increased Wood Drops from all trees by 50%
Trees will now drop wood regardless of how they were destroyed (explosions, fire from below, etc.)

Shield Protection Cone increased from 100 to 180 Degrees
Fixed an issue where Fist Combat would randomly not register a click