Kitakami and Ooi now have new voices. The CL version of those two ladies now have new idle voice, new supply voice and a new line after wedding in CL form. Also, they fixed some voices when they are in CL form. There's new voices for the CL(t) version of them, too.
There's also plans to add new voices in the future.
New mechanics for AP shells
After this update,when you have AP shells and Large-Caliber cannons (i.e. 41cm, 46cm etc,) on the same ship, there will be a buff applied to both Hit and Firepower when attacking [Heavily armored enemy ships] and [Bosses](such as Anchorage Demon and Airfield Princess etc.) also there will be balance to all the equipment you have on your ship. (The balance is not disclosed)
Also, the buff ONLY applies during the Shelling rounds(1st and 2nd).
The buff ONLY applies when you have a Large-Caliber cannon