diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..8b1008c
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,16 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+The change log format is inspired by [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
+
+
+## 2.6.0 Release - 2019-06-06
+
+Minor changes after feedback from the Modelling Advisory Group on the International Alpha release.
+
+### Improvements
+- Use class axioms to make 'Concept model object attribute' and 'Concept model data attribute' a child of 'Concept model attribute' (CLASS-112).
+  - Removed workaround to create these relationships during NNF calculation.
+- Validation improvement:
+  - Do not require referenceComponentId during conversion of owlExpression to a relationship representation.
diff --git a/pom.xml b/pom.xml
index fbd9d1d..607b83a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
 	<groupId>org.snomed.otf</groupId>
 	<artifactId>snomed-owl-toolkit</artifactId>
-	<version>2.6.0-SNAPSHOT</version>
+	<version>2.6.0</version>
 
 	<properties>
 		<java.version>1.8</java.version>