Next generation
For the genealogical descriptor, please see generation.
Next generation was a term used to describe the newest iteration of a technology.
Even when the warp five engine was newly introduced and the only one in Starfleet was being used by Enterprise NX-01, warp five engines were expected to be installed in the next generation of freighters. (ENT: "Fortunate Son")
In 2375, Kathryn Janeway described the quantum slipstream drive "the next generation of instellar propulsion. (VOY: "Timeless")