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KanColle Phase 1

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KanColle Phase 1 also known as the "Flash Era of KanColle" began is April 23rd, 2013 and has lasted for a total of 5 years. Approximately around April 23rd, 2018 KanColle will end "Phase 1" of its development cycle and will begin to move into Phase 2 of it's game development which will begin with ditching the flash based system KanColle has used up till now as its main platform. Due to the recent changes in which flash become a less desired platform by even web browsers, KanColle has recently made an announcement that the game will end it's run of Flash by its 5th Anniversary and will be migrated to HTML 5. All content and data has been announced to be migrating with the transfer.

The purpose of this page will be to cover the entirety of KanColle's Phase 1 development history regarding the Browser Version of KanColle from it's beginning all the way to when the game end's it's run on Flash.

Development History

KanColle's history has been a long and interesting development that began with lots of early planning that based on some interviews started approximately around Late 2011 and would be released in it's basic form around April 23rd, 2013. The following history chart will use info gathered from the mentioned interviews, along with the KanColle 4th Anniversary issue from Comptiq Magazine, and update note history gathered over the course of it's development cycle.

All development notes will be updated till the end of Phase 1 has been reached.

Year Month Day Update Type Notes
Late 2011 - 2012 ??? ??? Early Development Kensuke Tanaka begins development plans for KanColle using the assistance of his doujin team from C2 Kikan. Tanaka proceeds to round up artists and programmers to work on development of the game.
2012 - Early 2013 ??? ??? Early Development Kensuke Tanaka makes contact with Kadokawa to round up new talented Seiyuus to get on board for the project. Voices for the initial release Kanmusu were worked upon. Late in 2012 and through part of the beginning of 2013, a deal was made to use DMM Games as a hosting platform for their game project which they made an agreement to become part of the joint collaboration of the project.
2013 February 28 Pre-Relase KanColle website was open on DMM Games and per-registration for the game began. People who registered to join in on KanColle at the time would receive Ooi as a per-release reward for registering before the game's release.
April 23 Launch KanColle was released to the public. It was titled as a "Fleet Development Simulator Game"
Kanmusu A total of 94 ships were released among the initial release of the game:

Battleships: Nagato, Mutsu, Ise, Hyuuga, Kongou, Hiei, Haruna, Kirishima, Fusou, Yamashiro
Aviation Battleships: Ise Kai, Hyuuga Kai, Fusou Kai, Yamashiro Kai
Standard Carriers: Akagi, Kaga, Souryuu, Hiryuu
Light Carriers: Houshou, Ryuujou, Hiyou, Junyou, Shouhou, Chitose Carrier, Chiyoda Carrier
Seaplane Tender: Chitose ,Chiyoda
Heavy Cruiser: Mogami, Furutaka, Kako, Aoba, Myoukou, Nachi, Ashigara, Haguro, Takao, Atago, Maya, Choukai, Tone, Chikuma
Aviation Cruiser: Mogami Kai
Light Cruiser: Ooi, Kitakami, Tenryuu, Tatsuta, Kuma, Tama, Kiso, Nagara, Isuzu, Natori, Yura, Sendai, Jintsuu, Naka
Torpedo Cruiser: Ooi, Kitakami
Destroyer: Yukikaze, Shimakaze, Fubuki, Shirayuki, Hatsuyuki, Miyuki, Murakumo, Isonami, Ayanami, Shikinami, Mutsuki, Kisaragi, Satsuki, Fumizuki, Nagatsuki, Kikuzuki, Mikazuki, Mochizuki, Oboro, Akebono, Sazanami, Ushio, Akatsuki, Hibiki, Ikazuchi, Inazuma, Hatsuharu, Nenohi, Wakaba, Hatsushimo, Shiratsuyu, Shigure, Murasame, Yuudachi, Samidare, Suzukaze, Asashio, Ooshio, Michishio, Arashio, Arare, Kasumi, Kagerou, Shiranui, Kuroshio

Abyssals A total of 13 Abyssals were released among the initial release of the game:

Destroyer I-Class, Destroyer Ro-Class, Destroyer Ha-Class, Destroyer Ni-Class, Light Cruiser Ho-Class, Light Cruiser He-Class, Light Cruiser To-Class, Torpedo Cruiser Chi-Class, Heavy Cruiser Ri-Class, Light Carrier Nu-Class, Battleship Ru-Class, Standard Carrier Wo-Class, Transport Ship Wa-Class

World Maps The following Maps were released among the initial release of the game:

World 1: Naval Base Waters
World 2: Nansei Island Waters
World 3: Northern Waters

May 1 System Mutiple Scrapping of Equipment was implemented into the game.
8 System ASW equipment such as Sonars and Depth Charge Launchers were released. Maelstrom effects were altered to allow radars to lessen the effects of resources lost when you make contact with a maelstrom node.
15 Kanmusu Remodel Chitose Carrier Kai and Chiyoda Carrier Kai was released.
System Reconnisance Aircraft Saiun was implemented into the game. Home port expansions were made possible allowing at the time to expand your ships up to 150 ships at that time.
17 Event KanColle's First Event, The Spring 2013 Event: "Raid the Enemy Forward Base” was implemented and would last until June 5th, 2013.
New Kanmusu The following ships were implemented in the Event:

Shoukaku (Rewards), Zuikaku (drop), Abukuma (drop), Kinu (drop)
These new ships would also be the first ships to have hourly notification lines.

Abyssals The following ships were implemented in the Event:

Submarine Ka-Class, Submarine Yo-Class, Floating Fortress, Anchorage Demon, Anchorage Princess

System Enemy Submarines were added into Enemy Fleet. "Mamiya" was added as an item in the game.
29 System CG was given to Mamiya, Daily Quests had thier reset time changed to 5:00 AM JST. Kanmusu could now be swapped directly while in the fleet.
June 5 System Spring 2013 Event came to an end. World 4: Western Waters was implemented along with 4-1 “Battle of Jam Island” and 4-2 “Curry Ocean Pacification”. ASW mechanics were changed to the basic version that is known as of current (Light Aircraft Carriers and Aviation cruisers could now attack subs).
New Kanmusu The following ships were implemented in the Update:

Yuubari and Zuihou

Abyssals The following ships were implemented in the Game:

Battleship Ta-Class

12 System Saiun were now given the ability to prevent Red-T Disadvantage. Mamiya could now cause a high morale boost (Sparkling) among multiple ships. Heavy Cruisers could now equip Type 3 Shells, Aviation cruisers can load torpedoes, Torpedo cruisers can now load sonars and depth charge launchers, carriers can now load radars.
19 Kanmusu Remodel Kitakami Kai Ni and Ooi Kai Ni were implemented into the game becoming the first Kai 2 Remodels.
21 Other The growing popularity of the game filled the servers, and new registrations were temporarily closed. This caused an big outcry, and the game gained further publicity.
26 System 4-3 Map, "The Bombing of Ri Lanka" was implemented.
New Kanmusu Mikuma was added into the game.
July 3 Other Additional servers were added and per-registration for the new serves began.
10 Servers KanColle shifted to a multi server system consisting of 3 different servers at the time. The original server, Yokosuka Naval District, Kure Naval District and Sasebo Naval District.
New Kanmusu Maikaze was added into the game.
17 System World 4-4 Map “Battle of Casgadama” was implemented. The ability sort your kanmusu through Moderization was added.
Abyssals The following ships were implemented in the Game:

Armored Carrier Demon and Armored Carrier Princess

Servers 4th Server Maizuru Naval District was added.
24 New Kanmusu/ Remodel Kinugasa was added into the game. Chitose Carrier Kai Ni and Chiyoda Carrier Kai Ni were implemented
System Added the ability to Lock Ships. Added the Ability to open all furniture boxes at once.
25 Other KanColle's Staff Twitter was launched. [1] [1]
August 1 Event The Summer 2013 Event: "Southern Waters Assault Reconnaissance”” was implemented and would last until August 26th, 2013.
New Kanmusu The following ships were implemented in the Event:

I-168 (Reward), I-58 (drop), Suzuya (Reward), Kumano (drop)

Abyssals The following ships were implemented in the Event:

Southern Demon, Southern War Demon, Southern War Princess

System Support Expedtions have been implemented and could be used in the Event.
2 System Type A Ko-hyoteki were given the ability to launch a per-emptive torpedo strike.
7 Servers 5th Server Oominato Guard District was added.
8 New Kanmusu Yamato was implemented in the middle of the event in correspondence to her launch day. Those who successfully cleared the entire event received her automatically upon the update. Those that did not however needed to complete the Final Event Map (E-4) to earn her.
10 Servers 6th Server Turk Naval District was added. The Lottery System was implemented to control server congestion issues.
17 Servers 7th Server Lingga Naval District was added.
21 Servers 8th Server Rabula Naval District was added.
26 System Summer 2013 Event came to an end. Flagships in Single Fleets could no longer continue a sortie if they were heavily damaged. Flagship Protection mechanics were added.
New Kanmusu The following ships were implemented in the Update:

Hatsukaze

30 Servers 9th Server Shortland Naval District was added.
September 11 Kanmusu Update / Remodel The following Kamusu recived the following in the Update:

Hibiki could now be remodeled into Verniy.
Nagara Kai recived a CG update

13 Servers 10th Server Buin Naval District was added.
18 System World 5: Southern Waters was implemented. 5-1 - The Frontline of the Southern Waters and 5-2 - The Coral Islands were released.
New Kanmusu / Update The following ships were implemented in the Update:

Akigumo, Yuugumo
Natori Kai received a CG update.

25 New Kanmusu Remodel The following remodel were implemented in the Update:

Isuzu Kai Ni

System Admiral's Maximum HQ Level increased from 105 to 115.
26 Anime Plans for development of the KanColle Anime and KanColle Kai were announced.
28 Servers 11th Server Tawi-Tawi Naval District was added.
October 4 System 5-3 - The Sav Islands were released. This was the first Night Battle Themed map
New Kanmusu Remodel The following remodel were implemented in the Update:

Yuudachi Kai Ni

7 Collaboration Family Mart Collaboration began.
9 Servers 12th Server Palau Naval District was added.
16 New Kanmusu The following Kanmusu were implemented in the Update:

Makigumo, Naganami

Kanmusu Voice Lines New Voice Lines were implemented for the Following Kanmusu:

Yuudachi Kai Ni, Shigure

23 Kanmusu Remodel The Following remodel were implemented for the Following Kanmusu:

Shigure Kai Ni

Kanmusu Voice Lines New Voice Lines were implemented for the Following Kanmusu:

Chitose Kai/A, Chiyoda Kai/A, Asashio, Ooshio, Michishio

System Notification window for using Mamiya was added. Progression indicators to Quest with mutiple requirements were implemented. Max icon to indicate when certain stat parameters were maxed from Modernization were implemented.
31 Collaboration Collaboration with Waterline Series to produced plastic ship models began. The first ship they released would be the "1/700 Kancolle Plastic Model No.01 Shipgirl Battleship Nagato
November 1 Event The Fall 2013 Event: "“Decisive Battle! Escape from Ironbottom Sound!” was implemented and would last until November 27th, 2013.
New Kanmusu/ Remodel The following ships were implemented in the Event:

I-19 (Reward), I-8 (Reward), Agano (Drop), Noshiro (Reward), Musashi (Reward)
Kongou Kai Ni remodel was also released.

Abyssals The following ships were implemented in the Event:

Airfield Princess, Battleship Princess

6 Servers 13th Server Burnei Naval District was added.
9 Collaboration The Limited Edition 10th Volume of Lucky Star had a cover that featured a collaboration with KanColle
13 Kanmusu Remodel The Following remodel were implemented for the Following Kanmusu:

Kinugasa Kai Ni

Kanmusu Voice Lines New Voice Lines were implemented for the Following Kanmusu:

Kasumi Kai, Arashio Kai, Arare Kai

20 New Kanmusu/ Remodel The following ships were implemented in the Event:

Yahagi(Drop)
as a last second surprise in the event. Hiei Kai Ni remodel was also released.
Shiratsuyu Kai recived a new CG.

Kanmusu Voice Lines New Voice Lines were implemented for the Following Kanmusu:

Shiratsuyu Kai

27 System Fall 2013 Event came to an end. Max Modernization showed up on the modernization screen to indicate when a stat was fully maxed out. PVP now had selectable formations.
December 2 Servers 14th Server Hitokappu Bay Naval District was added.
3 Collaboration 2nd Limited Time Collaboration with Family Mart began. This time involving a wrapping store that opened in Yokosuka.
4 Kanmusu Update New CG were implemented for the Following Kanmusu:

Murasame Kai

Kanmusu Voice Lines New Voice Lines were implemented for the Following Kanmusu:

Murasame Kai

System The Album function upgraded to allow the viewing of shipgirls who have changes to their graphics via the same numbering.
10 Anime Official site for anime opened. Animation company (Diomedia) announced.
11 System Composition Screen now displayed a level progress bar to shoe how much exp was needed for a Kanmusu to reach a new level.
Kanmusu Remodel The Following remodel were implemented for the Following Kanmusu:

Kiso Kai Ni

12 Servers 15th Server Paramushir Naval District was added.
24 Event The Winter 2013 Event: “Intercept! The Fleet of Fog”!” was implemented and would last until January 8th, 2014.
Collaboration As part of the collaboration event with the TV anime “Arpeggio of Blue Steel -Ars Nova-”, for the duration of the event, Arpeggio's version of Iona, [[Takao (fog)|Takao, Haruna were added.
New Kanmusu The following ships were implemented in the Event:

I-401 (Reward)
In addition, the following new Kanmusu were released and available via Large Ship Construction:
Akitsumaru, Maruyu

System Large Ship Construction was implemented. Luck Modernizing using Maruyu became possible. Daihatsu were introduced to improve the efficiency of Expeditons
Limited Time Kanmusu CG/ Voice Christmas lines were given to Nagato, Kiso and Naka.

Naka received a Christmas related CG.

2014 January 1 Limited Time Kanmusu Voice New Years lines were given to Nagato
8 Kanmusu Voice Lines New voice lines for Mutsuki Kai, Kisaragi Kai, Nagato Kai, Kiso Kai Ni.
15 Kanmusu Remodel The Following remodel were implemented for the Following Kanmusu:

Naka Kai Ni

22 Kanmusu Voice Lines New voice lines for Kaga Kai, Mutsu Kai, Houshou Kai, Isuzu Kai Ni.
28 Collaboration Kancolle Collaboration with UfoTable Cafe Commenced.
29 New Kanmusu The following ships were implemented in the Game:

Yayoi, Uzuki

Kanmusu Voice Lines New voice lines for Hibiki and Mochizuki Kai.
February 1 Servers 16th Server Sukumo Naval District was added.
14 System Marriage was implemented allowing you to marry Kanmusu and further boosting thier levels beyond level 99.
Kanmusu Voice Lines New voice lines for Akatsuki Kai.
New Kanmusu CG The following CG were implemented in the Kanmusu:

Uzuki Kai

26 System New Map: 5-4 The Salmon Sea Area has now been released. Searchlights and Drum Canisters were released. Equipping Sonars and Depth Charge Launchers together would have an added effect. Drum Canister based expeditions were added.
Kanmusu Remodel/CG The Following remodel were implemented for the Following Kanmusu:

Jintsuu Kai Ni
The Following Kanmusu got thier CG updated:
Hiyou Kai

Kanmusu Voice Lines New voice lines for Jintsuu Kai, Ryuujou Kai, Shikinami Kai.
March 1 Servers 17th Server Kanoya Airfield was added.
14 System Monthly Extra Operation Maps 1-5 The Seas Near the Naval Base and 5-5 Northern Salmon Sea Area were implemented for the first time allowing for players to earn medals on a monthly basis.
New Kanmusu The following ships were implemented in the Game and could be obtained via expeditions, construction and Large Ship Construction:

The German Ships Z1, Z3, Bismarck
This would mark the first foreign ships to be introduced into the game.

Abyssals The following ships were implemented in the Game:

Battleship Re-Class

15 Servers 18th Server Iwagawa Airfield was added.
22 Anime Release of visuals of Fubuki, Akagi, Kaga to AnimeJapan2014. Announced the 1st KanColle Naval Review.
Collaboration Kancolle Collaboration with UfoTable Cafe Commenced
28 New Kanmusu/ Remodels The following ships were implemented in the Game:

Hamakaze
In addition, the following ships received a remodel.
Kirishima Kai Ni, Z1 Zwei, Z3 Zwei

System Resources were now set at a hard cap of 300,000 fuel, ammo, steel and Bauxite each.
April 9 New Kanmusu CG The following ships were implemented in the Game:

Ryuujou Kai

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Shimakaze Kai, Chiyoda Carrier Kai Ni, Chitose Carrier Kai Ni

System Ability to remove all the ship in a composition accompanying the flagship in the Composition Menu was added.
23 Event In Celebration of the Game's 1st Anniversary The [[Spring 2014 Event|Spring 2014 Event: “Recon Planes, Launching!” ] was implemented and would last until May 9th, 2014.
New Kanmusu/ Remodel The following ships were implemented in the Event:

Akashi (Reward), Amatsukaze (Reward), Tanikaze (Drop), Sakawa (Reward)
In addition, the following ship remodels were introduced:
Tone Kai Ni (Blueprint), Chikuma Kai Ni (Blueprint), Bismarck Zwei (Blueprint)

Abyssals The following ships were implemented in the Event:

Submarine So-Class, Harbour Princess, Isolated Island Demon

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Ashigara

System New Systems such as "Akashi's Fleet Repair" mechanic was introduced. Artillery Spotting, Contact, and LoS-based pathing was introduced. Medals that were collected could now be converted to Blueprint to remodel certain Kanmusu that needed them as well as additional UI changes.
May 9 System The Spring 2014 Event came to an end.
Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Myoukou Kai, Nachi Kai, Kuma Kai, Tama Kai

23 New Kanmusu/ Remodels The following ships were implemented in the Game:

Urakaze
In addition, the following ships received a remodel.
Haguro Kai Ni ,Ryuujou Kai Ni

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Samidare Kai, Suzukaze Kai

System New Map: 2-5: Combat Patrol Off Okinoshima was introduced.
June 6 New Kanmusu/ Remodels The following ships were implemented in the Game:

Taigei
In addition, the following ships received a remodel.
Hiryuu Kai Ni

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Shouhou Kai

System First equipment upgrade quest implemented. “Unequip all equipment”, “Expedition cancel” functions added. Admiral's HQ level could now go up to Level 120
20 New Kanmusu Remodels The following ships received a remodel.

Sendai Kai Ni, Ayanami Kai Ni

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Sendai Kai, Ayanami Kai

System New equipment Star Shell and Type 98 Recon Seaplane (Night Scout) added allowing to further aid your fleet's combat performance during night battle.
July 4 New Kanmusu Remodels The following ships received a remodel.

Myoukou Kai Ni

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Myoukou Kai Ni

System Interactive Furniture was first introduced with the "Antique Alarm Clock".
18 New Kanmusu Remodels The following ships received a remodel.

Souryuu Kai Ni

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Kagerou Kai, Shiranui Kai, Kuroshio Kai
In addition to thses, Akagi recive a special limited time voiceline referencing Operation AL/MI.

System Current shipgirl number, bucket count displayed on main screen. The “invite your friends” function under the game removed, and replaced with the developer tweets.
28 New Kanmusu Remodels The following ships received a remodel.

Haruna Kai Ni

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Kaga Kai, Kirishima Kai, Haruna Kai

System Gun Fitting mechanics added for Large Calibre Guns. Fast battleships can now load Type 91 AP Shell
August 3 Others The first KanColle Live event known as the KanColle Naval Review was launched. Kanmusu Vocal Soundtrack Vol 1 and 2 were released. KanColle Offical Sound Track "Dawn" was released.
Anime Key Visual and the first PV trailer to the Kancolle Anime was revealed at the Naval Review. Broadcast time for were announced.
Collaboration Collaboration with Gilco was announced to sell KanColle themed version of "Almond Glico” and “Cratz”.
8 Event The Summer 2014 Event: “Operation AL/MI!” was implemented and would last until August 29th, 2014.
Abyssals The following ships were implemented in the Event:

Northern Princess, Midway Princess, Aircraft Carrier Demon, and Aircraft Carrier Princess

New Kanmusu The following ships were implemented in the Event:

Harusame (Reward), Ooyodo (Reward), Tokitsukaze (Reward), Unryuu (Reward), Isokaze (Reward), Hayashimo (Drop) , Kiyoshimo (Drop)

System Ship-Locking Mechanics were implemented. Combined Fleets were implemented. Escort retreating mechanics for Combined Fleets were implemented.
Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Tone Kai Ni, Chikuma Kai Ni

Limited Time Voice Lines The following Event voice lines were implemented for the following Kanmusu in the Game:

Akagi, Kaga

29 System Naval Base Jukebox implemented. Summer 2014 Event came to an end.
New Kanmusu Remodel The following ship recived the following remodel:

Junyou Kai Ni

September 4 Others KanColle won first place in Game Design in the CEDEC AWARDS 2014
12 System World 3-5: The Aleutian Island Campaign was implemented.
Abyssals The following ships were implemented:

Light Cruiser Tsu-Class

26 System World 6: The Central Waters was implemented along with 6-1 and 6-2.
New Kanmusu Remodel The following ship received the following remodel:

Bismarck Drei

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Hiryuu Kai, Junyou Kai / Kai Ni

October 10 System AP Shell mechanics were revised to allow ships to do extra damage against Battleships. Equipment Locking Mechanics were implemented.
New Kanmusu Remodel The following ship received the following remodel:

Hatsuharu Kai Ni

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Kitakami Kai/ Kai Ni, Ooi Kai / Kai Ni

24 System Akashi's Improvement Arsenal implemented.
New Kanmusu Remodel The following ship received the following remodel:

Fusou Kai Ni

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Fusou Kai

November 7 Anime 2nd Anime PV Trailer was released online.
14 Event The Summer 2014 Event: “Commence! Operation Kon” was implemented and would last until December 1st, 2014.
New Kanmusu/ Remodels The following ships were implemented in the Event:

Akizuki (Reward), Prinz Eugen (Reward), Nowaki (Reward), Asagumo (Drop)
In addition, the following ships received a remodel.
Ushio Kai Ni

Abyssals The following ships were implemented:

[[Heavy Cruiser Ne-Class], Destroyer Princess, Aircraft Carrier Water Demon

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Ushio Kai, Akebono Kai, Hatsuharu Kai, Nenohi Kai
In addition to this Mamiya and Irako were given new voice lines when using thier items.

System Anti-Air Cut-In mechanics implemented along with an update to Anti-Air Mechanics in general. 10cm Twin High-angle Mount + Anti-Aircraft Fire Director were added.
20 New Kanmusu Remodel The following ship received the following remodel:

Yamashiro Kai Ni

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Yamashiro Kai

System Battleships can now equip and use Searchlights.
25 Other First Kancolle Kai trailer was released.
28 Collaboration Kancolle Collaboration with Good Smile and Animate Cafe Akibahara to open a Kancolle Collaboration themed Cafe.
December 1 System Fall 2014 Event] came to an end.
New Kanmusu CG/ Remodels The following ships were given a CG update:

Harusame Kai
In addition, the following ships received a remodel.
Furutaka Kai Ni

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Furutaka Kai, Zuihou Kai, Hamakaze Kai, Ooyodo

12 Limited Time CG/Voice Lines/ Mini Event The following Christmas CG were implemented for the following Kanmusu / Abyssals in the Game:

Naka Kai Ni, Ryuujou Kai/ Kai Ni, Shigure Kai Ni, Northern Princess
Over 20+ Kanmusu got Christmas Voice Lines.
Present Boxes dropped over various maps.

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Fubuki Kai, Shirayuki Kai, Hatsuyuki Kai, Miyuki Kai

19 Anime Second PV trailer to the Kancolle Anime was revealed online.
12 New Kanmusu / Remodel The following ships were implemented:

Yamagumo

The Following Kanmusu recived a 2nd Remodel:
Ashigara Kai Ni

Kanmusu Voice Lines The following voice lines were implemented for the following Kanmusu in the Game:

Oboro Kai, Sazanami Kai, Wakaba Kai

Limited Time CG/ Lines Year End Cleaning CG was given to the following Kanmusu:

Akebono
In addition, many other Kanmusus had lines tied to Year's End Cleaning.

27 Anime Anime pre- screening event “Kancolle Pre-screening – Premium Live Viewing” is held and gave selected participants a preview of the 1st Episode of the Anime.
2015 Janruary 1 Limited Time CG/ Lines Over 30+ Kanmusu recived New Years lines.

In addition, the following ship girls received New Year's Hiragi CG, which included, but was not limited to:
Yuudachi Kai Ni, Ooyodo / Kai, Akashi / Kai and so forth.

7 Anime KanColle the Anime began broadcasting across Japanese Television.
Servers 19th Server Saiki Bay Naval District was added.
9 New Kanmusu Remodel The following remodel were implemented to the following Kanmusu:

Fubuki Kai Ni

New Kanmusu Voice Lines The following voice lines were implemented to the following Kanmusu:

Fubuki Kai

23 New Kanmusu Remodel The following remodel were implemented to the following Kanmusus:

Hatsushimo Kai Ni, Nachi Kai Ni

New Kanmusu Voice Lines The following voice lines were implemented to the following Kanmusu:

Hatsushimo Kai

Limited Time Voice Lines Over 10+ Kanmusu recived Setsubun voice lines.
System Special Furniture Naval District Counter Bar was implemented allowing for Kanmusus of have various beverages and snacks depending on who you put in as your secretary.
Other Kancolle Arcade test locations are implemented.
February 6 Event The Winter 2015 Event: “Counter-attack! Assault on Truk Naval District” was implemented and would last until Feburary 23rd, 2015.
System Implemented selectable event difficulty settings. First class medal were implemented.
Abyssals The following ships were implemented:

Light Cruiser Princess, Battleship Water Demon

New Kanmusu The following ships were implemented in the Event:

Katori (Reward), U-511 (Reward), Amagi (Reward), Asashimo (Drop)

Limited Time Voice Lines/CG Over 40+ Kanmusu recived Valentine's voice lines.

In addition, the following Kanmusu received Valentine's CG:
Murakumo, Hamakaze, Shigure Kai Ni

14 Other Implemented Kancolle Arcade pre-release show event as part of JAEPO2015.
18 Anime Anime OP theme “Miiro”, Ed theme “Fubuki” released for sale.
23 System Winter 2015 Event came to an end.
Limited Time Event Hishimochi were implemented and appeared as drops on certain maps.
Collaboration The KanColle Anime x Pizza Hut Collaboration began. Pizza Hut store in Kanda, Tokyo was reskinned with a Kancolle theme.
March 3 Collaboration Collaboration between Lawson and Kancolle anime.
13 New Kanmusu Remodel The following ship received the following remodel:

Maya Kai Ni

New Kanmusu Voice Lines The following voice lines were implemented to the following Kanmusu:

Maya Kai

System In celebration of Paul Allen discovering the remains of the sunken Battleship Musashi, Musashi's drop rate was increased for a limited period of time. Special furniture “Musashi’s Hanging Scroll” added.
Limited Time Voice Lines Over 20+ Kanmusu recived White Day voice lines.
25 Anime KanColle the Anime's final episode aired. KanColle soundtrack "Kankyou" was released. KanColle Anime character soundtrack "Kanmusu's Song" was released.
27 New Kanmusu Remodel The following ship received the following remodel:

Choukai Kai Ni

New Kanmusu Voice Lines The following voice lines were implemented to the following Kanmusu:

Choukai Kai, Tenryuu, Tatsuta
New lines added to Akashi in such places as Akashi's Improvement Arsenal

Anime KanColle the Anime's BD and DVD released for sale.
April 10 System 1-6: The Sea Route Near the Naval Base was introduced.

Headquarters Personnel, an item which increases the maximum number simultaneously ongoing quests, is implemented.

New Kanmusu Remodel The following ship received the following remodel:

Murakumo Kai Ni

New Kanmusu Voice Lines The following voice lines were implemented to the following Kanmusu:

Murakumo / Kai/ Kai Ni

23 2nd Anniversary KanColle celebrates its 2nd anniversary.
New Kanmusu Remodel The following ship received the following remodel:

Mutsuki Kai Ni , Kisaragi Kai Ni

New Kanmusu Voice Lines The following voice lines were implemented to the following Kanmusu:

Mutsuki Kai / Kai Ni, Kisaragi Kai / Kai Ni, Satsuki Kai, Fumizuki Kai, Nagatsuki Kai, Kikuzuki Kai, Mochizuki Kai, Mikazuki Kai.

Limited Time Voice Lines Over 80+ Kanmusu received 2nd Anniversary voice lines.
24 Event The Spring 2015 Event: "Order! The 11th Operation!" begins until 18th of May.
System Manual Node Selection mechanic introduced.
Abyssals The following ships were implemented:

Harbor Water Demon, Anchorage Water Demon

New Kanmusu The following ships were implemented in the Event:

Littorio (Reward), Katsuragi (Reward), Akitsushima (Reward), Takanami (Drop), Roma (Drop)

May 18 System Spring 2015 Event came to an end.

Main gun fitting mechanics for Light Cruisers were introduced.

Limited Time Voice Lines / CG Over 50+ Kanmusu received Rainy Season voice lines.

In addition to this, the following Kanmusu/Abyssals received the following Rainy Season CG:
Takanami, Northern Princess

New Kanmusu Voice Lines The following voice lines were implemented to the following Kanmusu:

Mogami Kai

29 System Equipment filters in the equipment selection screen were implemented.
New Kanmusu Remodel The following ship received the following remodel:

Akatsuki Kai Ni

Limited Time CG The following Kanmusu received the following Rainy Season CG:

Murasame Kai

June 12 System 4-5: AByssal Ocean Fleet Reduction Operation was introduced.
New Kanmusu Remodel The following ship received the following remodel:

Kako Kai Ni

New Kanmusu Voice Lines The following voice lines were implemented to the following Kanmusu:

Kako Kai

17 Servers 20th Server Hashirajima Naval District was added.
26 System 6-3:Operation K was introduced.

Aviation Detection mechanics were introduced.

New Kanmusu CG The following ship received the following new CG:

Takanami Kai, Shouhou Kai

Limited Time Voice Lines / CG Over 20+ Kanmusu received Early Summer Season voice lines.

In addition to this, the following Kanmusu/Abyssals received the following Swimsuit CG:
Oboro, Akebono, sazanami, Ushio / Kai Ni, Shiratsuyu Kai, Murasame Kai

July 3 Limited Time Voice Lines Over 30+ Kanmusu received Early Summer Season voice lines.
Servers Hashirajima Naval District became an open server opened to general sign up without lottery. The server was closed for a period due to maintenance, but the signups continued.
17 New Kanmusu Remodel The following ship received the following remodel:

Abukuma Kai Ni

Limited Time Voice Lines / CG Over 40+ Kanmusu received Summer Season voice lines.

In addition to this, the following Kanmusu/Abyssals received the following Swimsuit CG:
Tenryuu, Shigure Kai Ni, Yuudachi Kai Ni, Littorio/Italia

New Kanmusu Voice Lines The following voice lines were implemented to the following Kanmusu:

Asashio, Arashio, Michishio

Other “Kaga Cape”, sung by Kaga, is added into the game. Can be heard at some boss battles.
31 New Kanmusu CG The following ship received the following new CG:

Amagi Kai (damaged CG)

Limited Time Voice Lines / CG Summer Season voice lines were given to Fusou and Yamashiro.

In addition to this, the following Kanmusu/Abyssals received the following Swimsuit CG:
Tatsuta

Other “Kancolle Original Sound Track II Kaze” open for per-ordering.
August 9 Other The 2nd KanColle Naval Review took place.
Anime The progress on the Kancolle movie revealed at the 2nd KanColle Naval Review. A trailer is shown.
10 Event The Summer 2015 Event: “Counterattack! The 2nd SN Operation” was implemented and would last until September 7th, 2015.
System Aircraft Expertise was introduced.

Hayasui introduced the ability to use Maritime Resupply to replenish a fleet's fuel and ammo to an extent.
New special items introduced such as Reinforcement Expansions, Battle Rations, and Prototype Flight Deck Catapults.

New Kanmusu The following ships were implemented in the Event:

Kawakaze (Reward), Libeccio (Reward), Umikaze (Drop), Mizuho (Drop)

Abyssals The following ships were implemented:

Seaplane Tender Princess

11 Event Two Extra Operation map were added into event known as Operation FS
System The Boss Armor Reduction mechanic was implemeted to make a boss harder but could be easily defeated if certain conditions were met.
New Kanmusu The following ships were implemented in the Event:

Teruzuki (Reward), Kazagumo (Drop)

Abyssals The following ships were implemented:

Air Defense Princess

September 7 System The 'Summer 2015 Event came to an end.
Limited Time Voice Lines / CG Over 40+ Kanmusu received Fall Festival voice lines.

In addition to this, the following Kanmusu received the following Yukata CG:
Oboro, Urakaze, Hamakaze, Kawakaze, Nagara, Natori, Jintsuu Kai Ni, Ooyodo Kai, Mizuho

New Kanmusu Voice Lines The following voice lines were implemented to the following Kanmusu:

Hamakaze Kai, Urakaze Kai, Zuihou Kai

17 Other Kantai Collection was theatre screened at the DMM.com booth at the 2015 Tokyo Game Show. Development of the KanColle Android Version was announced.
20 Limited Time Voice CG In addition to this, the following Kanmusu/Abyssals received the following Oktoberfest CG:

Z1

25 New Kanmusu Remodel The following ship received the following remodel:

Shoukaku Kai Ni / A*
* This could be convertable between being a Standard Kai Ni Carrier or an Armor Kai Ni Carrier (A) by the player's choosing.

Limited Time Voice Lines A number of Kanmusu received Fall voice lines.

In addition to this, the following Kanmusu received the following The Tastes of Autumn CG:
Chiyoda, Chitose, Harusame

In addition to this, the following Kanmusu received the following Yukata CG: Inazuma, Ikazuchi, Kuma, Tama

October 9 System Added a drag and drop mechanic on the fleet composition screen, a resupply all button, and the temporary saving of the last used development and build recipe in the construction tab. Increased the number of pages in the equipment album.
Limited Time Voice Lines / CG/ Mini-Event The Mini Event Naval District Saury Festival was implemented.

Some maps drop “Pacific Saury” for a limited time.
In addition to this, the following Kanmusu received the following Pacific Saury CG: Isokaze, Murasame, Akebono, Northern Princess

In addition to this, the following Kanmusu received the following Taste of Autumn CG:
Ushio / Kai Ni

30 System Added mechanic to Record and Call Fleet Compositions. Added drag and drop mechanic for equipped equipment. New item “Skilled Pilot” added.
New Kanmusu Remodel The following ship received the following remodel:

Zuikaku Kai Ni / A*
* This could be convertable between being a Standard Kai Ni Carrier or an Armor Kai Ni Carrier (A) by the player's choosing.

Limited Time Voice Lines / CG Libeccio Recived a limited time Halloween Voiceline.

In addition to this, the following Kanmusu received the following Halloween CG:
Libeccio, Roma

November 18 Event The Fall 2015 Event: “Charge! Maritime Transport Operation!” was implemented and would last until December 8th, 2015.
System Transport Operations was introduced in the event along with the Transport Gauge.

Combine Fleets could now form a Transport Escort Fleet.
Training Cruiser mechanics in Exercise was changed to allow training cruiser to give exp bonuses even if they were not in the flagship position.

New Kanmusu The following ships were implemented in the Event:

Kashima (Reward), Hagikaze (Reward), Graf Zeppelin (Drop), Arashi (Drop)

Abyssals The following ships were implemented:

PT Imp Group, Light Cruiser Princess, Submarine Princess, Destroyer Water Demon

Limited Time Voice Lines 10+ Kanmusu recived voice lines tied to the event.
20 System Training Cruisers were now allowed to equip Searchlights
December 8 System The Fall 2015 Event came to an end.

Post-marriage level cap increased from 150 to 155.

Limited Time Voice Lines / CG Over 100+ Kanmusu received Christmas voice lines.

In addition to this, the following Kanmusu received the following Christmas CG:
Hatsukaze, Tanikaze, Kawakaze, Ooyodo/ Kai, Littoiro / Italia

New Kanmusu Voice Lines The following voice lines were implemented to the following Kanmusu:

Atago Kai, Takao Kai, Agano Kai, Noshiro Kai, Yahagi Kai, Sakawa Kai, Musashi, Italia

New Kanmusu Voice Lines The following CG were implemented to the following Kanmusu:

Oboro Kai

18 Other KanColle Arcade conducted a 3 day testing area in 3 locations known as the "Arcade special training sea” . Where players got to test out a near finalized build of the Arcade.
24 Limited Time Voice Lines / CG/ Mini-Event The Helping Mamiya mini-event commenced. Some maps drop “Okazari Decoration Material” and “Present Box” items. Several more Kanmusu received Christmas lines.

In addition to this, the following Christmas CG were implemented to the following Kanmusu:
Kashima

26 Anime KanColle Movie visuals released via posters at train stations, the internet and other means.
29 Limited Time Voice Lines / CG Over 80+ Kanmusu received End of the Year Cleaning voice lines.

In addition to this, Akebono recived an update to her Year End Cleaning CG.

More is to come....