The phrase "recent upswing" means that something has been improving or getting better lately.
Sentences with «recent upswing»
Recent upswings at Houston and South Florida have helped make the AAC the class of college football recruiting outside the Power 5. (sbnation.com)
Every review from Jackson's recent upswing stone - raves about a series of paintings in which the artist paints the canvas of a handful of pictures and then circular - smears them against the wall. (artreview.com)
That recent upswing is just a start, however. (fortune.com)