From the blog post: http://teamcherry.com.au/hollow-knight-silksong/
Incredible news all around.
Thanks to the incredible support of players and Kickstarter backers, what started out as a tiny game jam idea has become a game bought and played by over 2.8 million people!
As a backer, your support made this happen, so you'll of course be receiving your copy of Hollow Knight: Silksong 100% free.
Hollow Knight: Silksong PC (Windows, Mac & Linux) copies will be supplied as both a Steam Key and a DRM free version.
Incredible news all around.