updated NEWS.md before submitting to CRAN

Author: pbiecek

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: treeshap
 Title: Compute SHAP Values for Your Tree-Based Models Using the 'TreeSHAP'
     Algorithm
-Version: 0.3.2
+Version: 0.4.0
 Authors@R: c(
     person("Konrad", "Komisarczyk", email = "komisarczykkonrad@gmail.com", role = "aut"),
     person("Pawel", "Kozminski", email = "pkozminski99@gmail.com", role = "aut"),

NEWS.md

@@ -1,5 +1,10 @@
 # treeshap (development version)
 
+# treeshap 0.4.0
+* Fixed xgboost api and add depends R>=4.1.0 as in #51 (https://github.com/ModelOriented/treeshap/pull/51). Thanks @kapsner
+* Fix ranger.unify for probability forests as in #43 (https://github.com/ModelOriented/treeshap/pull/43). Thanks @ck37
+* Added support for GPBoost as in #41 (https://github.com/ModelOriented/treeshap/pull/41). Thanks @fabsig
+
 # treeshap 0.3.1 
 * Fixed code examples in `lightgbm.unify`.