Recency bias is a cognitive bias that favors recent events over historic ones; a memory bias. Recency bias gives "greater importance to the most recent event", such as the final lawyer's closing argument a jury hears before being dismissed to deliberate.
Recency bias should not be confused with anchoring or confirmation bias. Recency bias is related to the serial-position effect known as the recency effect. It is not to be confused with recency illusion, the belief or impression that a word or language usage is of recent origin when in reality it is long-established.