CHANGELOG.rdoc in postmark-1.16.0 vs CHANGELOG.rdoc in postmark-1.17.0

@@ -1,6 +1,10 @@
 = Changelog
 
+== 1.17.0
+
+* Update sent email message properly and not altering it's Message-ID with Postmark unique message id.
+
 == 1.16.0
 
 * Added support for template pushes.
 
 == 1.15.0