main/Configuration/1point3

Paste into ExperienceMod/config.yml:

# To simulate 1.3, consider how much experience one would need to enchant 
# at the highest level. In 1.2 and below, this number is 4625 exp, which
# is at level 50. For the most recent snapshop (12w23a), this has been 
# changed to 825 experience (level 30). Thus, we need to multiply 
# experience gain by a factor of 4625 / 825 = 5.61
# 
# Note: In 12w27a, experience gain is linear at 1 - 17. The leveling will 
#       not match up in rate, but the total amount of time should be 
#       similar.
multiplier: 5.61
default rewards disabled: false
reward type: experience
economy drop: slime ball
economy drop worth: 1
virtual scan radius: 20
default channels: [global]

# No changes from 1.2
mobs:

items:
  coal ore:
    block source: [0, 2]
  glowing redstone ore, redstone ore:
    block source: [1, 5]
  lapis ore:
    block source: [2, 5]
  diamond ore:
    block source: [3, 7]
  129: # Emerald
    block source: [3, 7]
  mob spawner:
    bonus: [18, 40]
  ?:
    smelting result: 1

# Achievement rewards hasn't been revealed yet.

Old version for 12w23a can be found here.