CHANGELOG.md in itamae-1.2.2 vs CHANGELOG.md in itamae-1.2.3

@@ -1,4 +1,14 @@
+## v1.2.2
+
+Improvements
+
+- Refactor Backend and Runner class for multi backends.
+
+## v1.2.1
+
+(yanked)
+
 ## v1.2.0
 
 Feature
 
 - Docker backend