release date

释义：“发售日期、上架日期”，指某款新产品第一次可以大规模通过公开途径购得的时间（小米和锤子不在此例）。

例句：
Microsoft hasn't announced a Windows 8 release date yet.
Although there's no official release date for Battlefield 3, the game is expected at the same time as Warfare 3.