diff --git a/Changelog.md b/Changelog.md
index aa13d88..ca9dae8 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## 16.4.1
+
+### New
+
+* Version bump and Let's Encrypt support if no SSL cert is provided via
+  mdata. [Thomas Merkel]
+
 ## 16.4.0
 
 ### New