diff --git a/README.txt b/README.txt
index 1cbc284..c095679 100644
--- a/README.txt
+++ b/README.txt
@@ -4,3 +4,5 @@ Depends default
 Licenses: code WTFPL
 
 For use with mapgens V6 or indev, adds pools to floatlands.
+More or less works with valleys, I don't think it works with v7.
+Not tested on Carpathian.