On May 25, 2014, Microsoft gets a security update for people who uses Windows Phone Blue can change them until version Update 1, also the next version is Windows Phone 8, which was current until May 31, 2014, and June 1, 2014. On June 15, 2014, the codename Windows Phone Blue was changed names is Windows Phone 8.1 official released, why people use Windows Phone 8.1, on June 27, 2014, Microsoft CEO Steve Ballmer and Chairman Joe Belfiore reaches the Windows Phone 8.1 can release launch on July 15, 2014. The final month for version Windows Phone 8 end security update 1, was until on July 8, 2014, on July 18, 2014, after release, Microsoft reaches release Update 1 until after July 2014.