Soyuz-2 is the active digitally controlled modernization of the R-7-derived Soyuz launcher. The family comprises the medium-class Soyuz-2.1a and higher-performance Soyuz-2.1b, plus the boosterless light-class Soyuz-2.1v; launches operate from Baikonur, Plesetsk, and Vostochny, while Soyuz-ST adaptations previously flew from French Guiana.