diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9ad068f..955766d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,10 +5,13 @@ 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]
+
+## [4.0.0] - 2018-07-19
 ### Added
  - Added extension method for getting type name without trailing generic info
  - Added DateTime extensions for getting next/last time in a sequence
  - Added action scheduler service
+ - Added IcdTimer methods for profiling event performance
 
 ### Changed
  - Re-raise base exception from ReflectionUtils.CreateInstance, TargetInvocationException and TypeLoadException don't say much
diff --git a/ICD.Common.Utils/Properties/AssemblyInfo.cs b/ICD.Common.Utils/Properties/AssemblyInfo.cs
index bce472f..1db615b 100644
--- a/ICD.Common.Utils/Properties/AssemblyInfo.cs
+++ b/ICD.Common.Utils/Properties/AssemblyInfo.cs
@@ -4,4 +4,4 @@ using System.Reflection;
 [assembly: AssemblyCompany("ICD Systems")]
 [assembly: AssemblyProduct("ICD.Common.Utils")]
 [assembly: AssemblyCopyright("Copyright © ICD Systems 2018")]
-[assembly: AssemblyVersion("3.7.0.0")]
+[assembly: AssemblyVersion("4.0.0.0")]