• Item cost increase to 2300 from 2135.
• Combine cost increase to 1025 from 860.

V1.0.0.152:

• Item cost reduced to 2135 from 2290.
• Combine cost reduced to 860 from 900.
• Armor penetration reduced to 35% from 40%.

V1.0.0.138:

• Now shows up as an upgrade from Pickaxe in the item shop.

V1.0.0.110:

• Total cost increased to 2290 from 2090.

V1.0.0.107:

• Recipe changed: Now requires Pickaxe and Long Sword instead of Recurve Bow and Long Sword.
• Combine cost increased to 700 from 500.
• Now provides +40 attack damage and 40% Armor penetration, instead of +40% attack speed, +10 attack damage and 40% Armor penetration.

V1.0.0.103:

• Unique armor penetration now functions with abilities (but still not against turrets).

v1.0.0.86:

• Bonus damage decreased to 10 from 20.

V0.9.25.24:

• Combine cost reduced to 500 from 750.

V0.9.25.21:

• No longer works on turrets.

June 19, 2009 Patch:

• Armor penetration increased to 40% from 33%.

May 23, 2009 Patch: Reworked

• Last Whisper now penetrates 33% of the defender's armor (Unique).
• Combine cost reduced to 750 from 850.

May 9, 2009 Patch:

• Fixed a bug which gave it an ability power ratio of 1.
• Fixed a bug which caused it to do bonus damage based on ability power.

May 1, 2009 Patch:

• Functionality changed to a "35% chance on hit to deal 1 Magic Damage for each point of Armor the target has" from a 50% chance to ignore all of the target's armor.
• Recipe cost increased to 750 from 600.