CHANGELOG.md in sendgrid-ruby-4.0.5 vs CHANGELOG.md in sendgrid-ruby-4.0.6

@@ -1,7 +1,11 @@
 # Change Log
 All notable changes to this project will be documented in this file.
 
+## [4.0.5] - 2016-10-18 ##
+### Added
+- Pull #113: Fix Travis CI Prism functionality for non-SendGrid contributors, update deprecated File.exists
+
 ## [4.0.5] - 2016-10-17 ##
 ### Added
 - Pull #110, fixed Issue #109
 - Automates StopLight.io Prism mock server locally & on Travis CI
 - Thanks to [KY](https://github.com/tkbky) for the pull request!
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