Updates Changelog for latest version

Author: philnash

CHANGELOG.md

@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [1.8.3] - 2018-07-05
 ### Fixed
 - Fixes Ruby interpolation in HAML for onetouch (thanks @muan)
 - Records Authy authentication after install verification (thanks @nukturnal)