Thoughts on Newbery: Mashups

Dear Gatekeepers,

Where are the new genres?  If you feel compelled to place a book into one, why use the old ones?

On this Heavy Medal post, Cindy comments:

I've been sharing the medal winners and honor books with my students and have come across the same issue with When You Reach Me. According to the definition we use (takes place at least 30 years prior to date of publication), it does qualify as historical fiction. Since I was only a couple years younger than Miranda in 1979, it doesn't feel...