diff --git a/docs/manual/install.html b/docs/manual/install.html
index 9203afbaf..692b0aa2f 100644
--- a/docs/manual/install.html
+++ b/docs/manual/install.html
@@ -403,7 +403,8 @@ you need jakarta-oro 2.0.1 or later, and <a href="#commons-net">commons-net</a><
     <td><a name="commons-net">commons-net.jar</td>
     <td>ftp, rexec and telnet tasks<br>
     jakarta-oro 2.0.1 or later is required in any case together with commons-net.<br>
-    For all users, a minimum version of commons-net of 1.2.2 is recommended.
+    For all users, a minimum version of commons-net of 1.2.2 is recommended.  Earlier 
+    versions did not support autodetection of system type or had significant bugs.
     </td>
     <td><a href="http://jakarta.apache.org/commons/net/index.html"
            target="_top">http://jakarta.apache.org/commons/net/index.html</a></td>