|3 =
- 2004: LEON and LOLA were released in Japan.
- 2014: anon & kanon were released.
- 2025: Kasukabe Tsumugi (VOCALOID6) was released.
|7 =
- 2023: Po-uta was released.
|9 =
- It is the day of our Lord and Savior Hatsune Miku ξ(^ω^)ξ "Miku-Miku'd" our lives.
|10 =
- Upcoming anniversaries include: AI Yuzuki Yukari on the 13th, V3 Megpoid - Native on the 16th, Yuzuki Yukari V4 on the 18th, Megurine Luka V4X on the 19th, and MEIKA Hime & Mikoto on the 30th.
|13 =
- 2025: AI Yuzuki Yukari was released.
|16 =
- 2012: V3 Megpoid - Native was released.
|18 =
- 2015: Yuzuki Yukari V4 was released.
|19 =
- 2015: Megurine Luka V4X was released.
|23 =
- It is the birthday of Shiki Rowen.
|28 =
- 2009: Macne Nana and Macne Petit were released for Reason 4 and GarageBand.
|30 =
- 2019: MEIKA Hime & Mikoto were released.
|31 =
- 2024: VOCALOID β-STUDIO program ceased operations; VX-β and its voicebanks discontinued.