29 January

Hibiki received additional quote lines (idle, resource replenishment) and hourly notifications
Mochizuki received additional quote lines (idle, resource replenishment).
I-8 can now be constructed (normal construction). Even though she's a rare sub, it can be constructed using normal submarine recipes.
Fixed graphics for Ushio and Ooshio.
2 new destroyers Yayoi and Uzuki. Yayoi drops in Worlds 2 to 5, while Uzuki drops at boss nodes of Worlds 3 to 5. Yayoi can also be obtained through normal construction. (Note: It might be possible to construct Uzuki as of time of this page edit, but the staff is fixing this i.e. it's not supposed to happen.)
6 new quests, including new weekly quests.