Has literature evolved in the last decade?

Yes, literature has evolved over the last decade. Evolution of any kind, by nature, is slow and difficult to notice is small increments. It may be easier to see that literature has evolved over the past 100 years rather than the past 10 years. Writers themselves have evolved over the past decade.

For example, J.K. Rowling is the author of the Harry Potter series. In her first books, the writing was a little immature, even appealing to a younger audience than her later books. As she evolved as an author, so did the writing, the characters, and the storyline of her books. In her latest books, J.K. Rowling tells mature tales of complex characters and riveting plots.