diff --git a/ChangeLog b/ChangeLog
index dd7a2a450..4a8e2effc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,6 @@
+2010-06-11 Holger Vogt
+ * ngspice.txt: notice to users: help file outdated
+ 
 2010-06-04 Holger Vogt
  * inpcom.c: bug report 3008000, overflow of fixed array of 
    used_subckt_names, used_model_names in fcn comment_out_unused_subckt_models
diff --git a/src/ngspice.txt b/src/ngspice.txt
index 05bef0ede..884f67c6a 100644
--- a/src/ngspice.txt
+++ b/src/ngspice.txt
@@ -3,6 +3,14 @@ TITLE: Table of Contents
 TEXT: H
 TEXT: H
 TEXT: H
+TEXT: H                    Important Notice:
+TEXT: H This manual is describing the original Spice3 code.  It does     
+TEXT: H not contain all the updates which have been added to ngspice
+TEXT: H over the last 10 years! Even if most of its content is still
+TEXT: H valid, it may be considered outdated.
+TEXT: H
+TEXT: H    For updated information, please have a look at the actual
+TEXT: H ngspicexx-manual.pdf.
 TEXT: H
 TEXT: H
 TEXT: H