v3.1.1 release (#277)

Author: spenlep-amzn

CHANGELOG.md

@@ -4,9 +4,15 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.1.1]
+### Added
+- Add client-side idempotency to chatSession.sendMessage() and .sendEvent() (#275)
+- (internal) publish StreamsJS error metrics when failed to load custom ccp chat session (#276)
+- Update ReactNativeSupport.md documentation to use known-good version <= v3.0.2
+
 ## [3.1.0]
 ### Added
-- Expose ChatJS version to global `window.connect.ChatJSVersion`
+- Expose ChatJS version to global `window.connect.ChatJS.version`
 - Add missing typescript declarations to `index.d.ts`
 - Updating `ChatGlobalConfig` interface in `index.d.ts` for React Native `webSocketManagerConfig`