Merge pull request #362 from jjhursey/v4.1-datestamp

Date stamp for v4.1

Author: jjhursey

Chap_Revisions.tex

@@ -1194,7 +1194,7 @@ \subsection{Removed attributes}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %%%%%%%%%% History: Version 4.1
-\section{Version 4.1: TBD}
+\section{Version 4.1: Oct. 2021}
 
 The v4.1 update includes clarifications and corrections from the v4.0 document: