Changes

# 4 improvement materials in exchange for a [[Blueprint|medal]].

# 4 improvement materials in exchange for a [[Blueprint|medal]].

# The in-game cash shop, which sells them in packages of 10 for 700 DMM points.

# The in-game cash shop, which sells them in packages of 10 for 700 DMM points.

# Event map clearance rewards and first class medals, the latter of which yields 10.

# Event map clearance rewards and first-class medals, the latter of which yields 10.

*  The 2nd ship in your first fleet determines which upgrades are available.

*  The 2nd ship in your first fleet determines which upgrades are available.

*  Improvements can fail.

*  Improvements can fail.

** As equipment is spent even on failure, you are recommended to use the success slider when improvements consume rare equipment.

** As equipment is spent even on failure, you are recommended to use the success slider when improvements consume rare equipment.

* There is no visible stat difference between improved and unimproved equipment.

* There is no visible stat difference between improved and unimproved equipment.

** Improvements on equipment have been shown to increase firepower, torpedo and ASW damage depending on the category of the equipment. Speculated to be a bonus on [[Combat#Base_Attack_Power|base attack power]].

** Improvements on equipment have been shown to increase firepower, torpedo and ASW depending on the category of the equipment. They are also speculated to contribute to [[Combat#Base_Attack_Power|base attack power]].

** Preliminary results as of May 31, 2015 are:

** Preliminary results as of May 31, 2015 are:

*** 12.7cm Twin Gun Mount, 25mm Triple Autocannon (torpedo), Type 94 Depth Charge (ASW), etc:

*** 12.7cm Twin Gun Mount, 25mm Triple Autocannon (torpedo stat), Type 94 Depth Charge (ASW stat), etc:

**** ★+1~3: +1 bonus to firepower/torpedo/ASW

**** ★+1~3: +1 bonus to firepower/torpedo/ASW

**** ★+4~8: +2 bonus to firepower/torpedo/ASW

**** ★+4~8: +2 bonus to firepower/torpedo/ASW