Out With the Old, In With the New

Capri Capers is rolling along. Then I realize I am behind the times.
The GED is history. Enter the HSE.
Although both are equivalency tests for those lacking a high school diploma, they are not the same. Since Harriet, the main character in Capri Capers, is getting one, I need to know about this.
So now I get to rewrite my manuscript yet again. And wonder if I am behind the times somewhere else as well.