Releasing version 2.3.0

Author: LaunchDarklyCI

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 All notable changes to the project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [2.3.0] - 2021-06-17
+### Added:
+- The SDK now supports the ability to control the proportion of traffic allocation to an experiment. This works in conjunction with a new platform feature now available to early access customers.
+
 ## [2.2.3] - 2021-06-03
 ### Fixed:
 - Updated `go-jsonstream` to [v1.0.1](https://github.com/launchdarkly/go-jsonstream/releases/tag/1.0.1) to incorporate a bugfix in JSON number parsing.