Unreleased 0.2.1 (2018-04-11) Fix rake xgboost:install without the SHA argument 0.2.0 (2018-04-11) Add xbgoost:install rake task Replace C extension with FFI Implement Booster#predict Implement Booster#save Implement Booster#load 0.1.0 (2017-11-3) Initial release (not functional)