Vocaloid Wiki/On this day/April

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|1 = 
*2008: Kasane Teto was released.
|2 =
*Upcoming anniversaries include: Aoki Lapis on the 6th.
|3 =
*2020: Gynoid Talk flower was released.
|6 = 
*2012: Aoki Lapis was released.
|11 =
*Upcoming anniversaries include: Xingchen on the 13th, Hibiki Koto on the 18th, and V3 Lily on the 19th.
|13 =
*2016: Xingchen was released.
|18 =
*2024: Hibiki Koto was released.
|19 = 
*2012: V3 Lily was released.
|20 =
*Upcoming anniversaries include: Shiki Rowen on the 24th, VY2 on the 25th, Kizuna Akari on the 26th, and Hatsune Miku Append, Gackpoid V4, Zhang Chuchu, and Yuecheng on the 30th.
|24 =
*2024: Shiki Rowen was released.
|25 = 
*2011: VY2 was released.
|26 = 
*2018: Kizuna Akari was released.
*2023: Luo Tianyi V5, YANHE V5, and Yuezheng Ling V5 were released at the VOCALOID SHOP.
|30 = 
*2010: Hatsune Miku Append was released.
*2015: Gackpoid V4 was released.
*2018: Zhang Chuchu and Yuecheng were confirmed as exclusive vocals.
}}
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