chore: Prepare 1.3.0-beta3 release (#274)

* chore: Prepare 1.3.0-beta3 release

Author: pawels-optimizely

CHANGELOG.MD

@@ -7,8 +7,13 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## [Unreleased]
 Changes that have landed but are not yet released.	Changes that have landed but are not yet released.
 
+## [1.3.0-beta3] - June 30th, 2020
+## Bug Fix
+- Provide syncronization for Notification Center Cache ([#273](https://github.com/optimizely/go-sdk/pull/273))
+
+
 ## [1.3.0-beta2] - June 17th, 2020
-## New Features
+## Bug Fix
 - Bring back old constructors for static manager ([#271](https://github.com/optimizely/go-sdk/pull/271))
 
 ## [1.3.0-beta1] - June 16th, 2020

pkg/event/version.go

@@ -18,7 +18,7 @@
 package event
 
 // Version is the current version of the client
-var Version = "1.3.0-beta2"
+var Version = "1.3.0-beta3"
 
 // ClientName is the name of the client
 var ClientName = "go-sdk"