--- a/mod_stats39/README.markdown	Wed Jun 16 17:32:43 2021 +0200
+++ b/mod_stats39/README.markdown	Sat Jun 19 12:55:14 2021 +0200
@@ -61,3 +61,14 @@
 </iq>
 ```
 
+# Compatibly
+
+  Prosody version   Works
+  ----------------- -------
+  0.9.x             No
+  0.10.x            Yes
+  0.11.x            Yes
+  Trunk[^1]         No
+
+[^1]: Does not work with trunk since the [change to
+    OpenMetrics](https://hg.prosody.im/trunk/rev/5f15ab7c6ae5)