As an idea on the history of sutra translation, Buddhist sutras translated into Chinese before Kumaraju are called 'ancient translations,' those after Kumaraju and before Genjo are called 'old translations' and those after Genjo are called 'new translations' (as per the classification of sutra translations).
訳経史の概念として鳩摩羅什までの漢訳経典を「古訳」鳩摩羅什以降、玄奘までを「旧訳（くやく）」玄奘以降を「新訳」と言う（訳経史区分）。