Prepare the 1.2.3 release (#173)

Author: erikcs

r-package/policytree/DESCRIPTION

@@ -1,8 +1,8 @@
 Package: policytree
 Title: Policy Learning via Doubly Robust Empirical Welfare Maximization over Trees
-Version: 1.2.2
+Version: 1.2.3
 Authors@R: c(
-    person("Erik", "Sverdrup", role = c("aut", "cre"), email = "erikcs@stanford.edu"),
+    person("Erik", "Sverdrup", role = c("aut", "cre"), email = "erik.sverdrup@monash.edu"),
     person("Ayush", "Kanodia", role = "aut"),
     person("Zhengyuan", "Zhou", role = "aut"),
     person("Susan", "Athey", role = "aut"),

releases/CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to policytree will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [1.2.3] - 2024-06-13
+
+### Fixed
+- Change package license to less restrictive MIT license. [#172](https://github.com/grf-labs/policytree/pull/172)
+
 ## [1.2.2] - 2023-06-23
 
 ### Fixed

releases/README.md

@@ -149,6 +149,10 @@ pp <- predict(tree, X)
 
 ## Previous performance test results
 
+**1.2.3**
+
+This is only a minor release updating the license.
+
 **1.2.2**
 
 This is only a patch release dropping CXX in Makevars per latest CRAN guidelines.