diff --git a/docs/changes.txt b/docs/changes.txt
index 7326eca2..ed9cd625 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -13,6 +13,8 @@ theoretical solar radiation, beaufort, and cloudbase to StdWXCalculate.
 
 Fixed bug in debian install script - 'Acurite' was not in the list of stations.
 
+Added group_distance with units mile and km.
+
 
 3.1.0 02/05/15