Hatsushimo as of 1943:
in 1943 Hatsushimo had the single 5-inch gun removed and replaced by a triple 25mm machine gun, also another three twin mounts where added, two in place of the older 40mm machine guns and the latter on a platform fitted in front of the bridge
Hatsushimo as of 1944:
during 1944 Hatsushio recieved a type 22 surface search and a type 13 air search radar, ten single 25mm machine guns were also added
Hatsushimo as of april 7th 1945:
by the time she escorted Yamato during operation ten-go Hatsushimo had underwent the portholes-sealing treatement, other than that another five single 25mm machine guns and four 13mm mounts were added, and the bridge was slighy modified; Hatsushimo survived the ten-go onslaught almost unscathered, and rescued survivors from Hamakaze, Yahagi and Yamato herself, but her luck ran out on july 30 1945, she hit a mine in Miyatsu Bay, near Maizuru, while trying to escape an US air raid, becoming the last IJN destroyer to be sunk in the war.
only Hatsuharu and Wakaba as of 1944 to go (plus some small fix and the addition of the Katakana syllabeson the pre-war drawings)