Not sure - 2012? But they were a bit more class-specific at the time - from the D&D Next playtest:
Feats: A specialty comprises a handful of feats, which provide special abilities to your character. You gain a feat at levels 1, 3, 6, and 9. Each feat’s entry describes the feat’s effect in the game world and includes a benefit, which explains how the feat works in the game rules. Some feats have prerequisites. For example, the Aura of Souls feat requires a character to be able to cast spells. You must meet a feat’s prerequisites to take that feat. You can take a feat only once, unless a feat says otherwise.