diff --git a/libraries/Angle/Warning.txt b/libraries/Angle/Warning.txt
new file mode 100644
index 00000000..f3641160
--- /dev/null
+++ b/libraries/Angle/Warning.txt
@@ -0,0 +1,7 @@
+
+2015-10-18:
+A serious bug has been found for negative angles.
+Do not use this lib until an update is available.
+(use at own risk)
+
+Sorry for the inconvenience.