2.3.0 readiness

Updates the CHANGELOG.md to set the release date.

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
-## 2.3.0 - TBD
+## 2.3.0 - 2020-09-02
 
 ### Added
 
@@ -24,6 +24,22 @@ All notable changes to this project will be documented in this file, in reverse
 
 - Nothing.
 
+
+-----
+
+### Release Notes for [2.3.0](https://github.com/laminas/laminas-component-installer/milestone/2)
+
+
+
+### 2.3.0
+
+- Total issues resolved: **1**
+- Total pull requests resolved: **1**
+- Total contributors: **2**
+
+#### Enhancement
+
+ - [9: Update whitelisted dev dependencies injection](https://github.com/laminas/laminas-component-installer/pull/9) thanks to @kpicaza and @weierophinney
 ## 2.2.0 - 2020-07-01
 
 ### Added