■ up to recently (過去形で) つい最近まで
ex) Until relatively recently, I didn't know who he was.
比較的最近まで、彼らが誰なのか知らなかった
up to recently: to describe something that was true until a specific point in time but has now changed
ex) Up to recently, the unemployment rate in our town was quite high, but it has since decreased significantly.
最近まで この街の失業率は高かったが、急激に改善された