Oh, thanks. That saved me from a lot of trouble. :) This is the Github issue if anyone needs to subscribe to this issue: https://github.com/tekezo/Karabiner/issues/660

EDIT: I read the comments at above issue; the version for MacOS Sierra is being developed as "Karabiner-Elements" [1]

And you can make a donation to the author here[2].

[1] https://github.com/tekezo/Karabiner-Elements

[2] https://pqrs.org/osx/karabiner/donation.html.en