diff --git a/CHANGELOG.md b/CHANGELOG.md
index a8a2480..aed7bfb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
-## Unreleased
+## 0.20.0
+
+- allOf values are now deep-merged in to a single hash before being processed as properties/oneOf. This means that allOf will never be present in your data (just like JSON pointers are auto-resolved)
+
+## 0.19.0
 
 - Parser now handles circular/self reference by returning the $ref as is instead of expanding it indefinitely. (Qihuan Piao)
diff --git a/lib/oas_parser/version.rb b/lib/oas_parser/version.rb
index 0def007..70a3155 100644
--- a/lib/oas_parser/version.rb
+++ b/lib/oas_parser/version.rb
@@ -1,3 +1,3 @@
 module OasParser
-  VERSION = '0.19.0'.freeze
+  VERSION = '0.20.0'.freeze
 end