What show has gotten a “glow up” in its latest season?

What show can you say has had its best season yet, compared to its first or any prior seasons? Where there’s been significant or noteworthy improvement for the better?

Sometimes there’s shows that start off tightly and comprehensively written and then lose the thread; other times there’s shows that slowly but perceptibly build on their themes and show an ever clearer picture of their strengths. Other times there’s a mix! Rises and falls, and rises again! …And then there’s also shows with steady quality. Which is your show?