You can see all of the nominees and winners here, but suffice to say, goddamn.
Best Novel: The Obelisk Gate by N.K. Jemisin.
Best Novella: Every Heart a Doorway by Seanan McGuire.
Best Novelette: The Tomato Thief by Ursula Vernon.
Best Short Story: Seasons of Glass and Iron by Amal El-Mohtar.
Best Series: The Vorkosigan Saga by Lois McMaster Bujold.
John W. Campbell Award for Best New Writer: Ada Palmer.
Overall, women won 15 out of the 17 categories and counting Palmer netting the Campbell (which is award at the Hugos but isn't a Hugo), they won 16 altogether. Not a bad performance and well deserved. Oh, I'm sure there will be grumblings and teeth gnashing from a certain segment of the fandom over this, but I'll say here what I said on my Tumblr:
Write better. The success of women and writers of color at the Hugos and other SFF lit awards has nothing to do with their ethnicity or identity and everything to do with them just being better writers, editors, etc.Being white, straight, and/or identifying with your assigned gender (because let's not overlook the fact that these groups include women) does not automatically mean you win awards.
Unless you create your own or manipulate a poorly planned one. *coughcoughDragonAwardscoughcough*
In any case, congrats to all of the winners and nominees.