Hatsune Miku
Hatsune Miku was the first Vocaloid developed by Crypton Future Media after they handled the release of the Yamaha vocal Meiko and Kaito. The name of "Hatsune Miku" was conceived soon after the Vocaloid 2 announcements, when an English and Japanese vocal were developed for the character. The intended design was delayed and later used for Megurine Luka instead. Miku was intended to be the first of a series of Vocaloids called the ""Character Vocal Series"", which included Kagamine Rin/Len and Megurine Luka. Each had a particular concept and vocal direction.
Crypton Future Media
On April 30, 2010, an updated version of Miku called Hatsune Miku Append was released containing a package of six different tones of Miku's voice: Soft (gentle, delicate voice), Sweet (young, chibi voice), Dark (mature, heartbroken-like voice), Vivid (bright, cheerful voice), Solid (loud, clear voice), and Light (innocent, heavenly voice). Crypton Future Media also released Kagamine Rin/Len Append on December 27, 2010.According to Crypton, a petition started on Facebook exceeded the needed 39,390 members in November 2010 to join Hatsune Miku's account for an English version to be released; Crypton announced that they are working on an English Miku and was planned to be released in 2013. Hatsune Miku English has been released on August 31, 2013. Hatsune Miku V3 was released September 26, 2013.