The complete list is here. Winners and honor books in our library include:
John Newbery Medal for the most outstanding contribution to children's literature:

The Crossover by Kwame Alexander
honor books:
El Deafo by Cece Bell
Brown Girl Dreaming by Jacqueline Woodson
Coretta Scott King (Author) Book Award recognizing an African American author and illustrator of outstanding books for children and young adults:

Brown Girl Dreaming by Jacqueline Woodson
honor books:
The Crossover by Kwame Alexander
Michael L. Printz Award for excellence in literature written for young adults:

I’ll Give You the Sun written by Jandy Nelson
Honor Books:
This One Summer by Mariko Tamaki
Margaret A. Edwards Award for lifetime achievement in writing for young adults:
The 2015 winner is Sharon M. Draper.
See the complete list of this year's winners here.