chore: bump version, update changelog for v2.3.1 (#272)

Author: alex-chew

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## 2.3.1 -- 2021-06-29
+
+* fix: read project properties from package's own ClassLoader [(PR #269)](https://github.com/aws/aws-encryption-sdk-java/pull/269)
+
 ## 2.3.0 -- 2021-06-16
 
 * feat: AWS KMS multi-Region Key support

README.md

@@ -56,7 +56,7 @@ You can get the latest release from Maven:
 <dependency>
   <groupId>com.amazonaws</groupId>
   <artifactId>aws-encryption-sdk-java</artifactId>
-  <version>2.3.0</version>
+  <version>2.3.1</version>
 </dependency>
 ```
 

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>com.amazonaws</groupId>
     <artifactId>aws-encryption-sdk-java</artifactId>
-    <version>2.3.0</version>
+    <version>2.3.1</version>
     <packaging>jar</packaging>
 
     <name>aws-encryption-sdk-java</name>