diff --git a/WHATSNEW.txt b/WHATSNEW.txt
index ce98a00..667d07b 100644
--- a/WHATSNEW.txt
+++ b/WHATSNEW.txt
@@ -1,5 +1,11 @@
 CHANGES
 
+- The program changes described below have made the 'ParseConfig'
+  API incompatible with previous versions of 'tconfpy'.  The version
+  number has been branched to 2.x to reflect this fact.  Existing
+  programs that use 'tconfpy' will have to be modified to use
+  this new release.  
+
 - Symbol Tables and Templates are now first-class objects in their own
   right (classes 'SymbolTable' and 'Template' respectively).  This
   means API will not be compatible with programs built using previous
@@ -10,9 +16,9 @@
 - The 'RetObj' object has been removed.  Objects of type 'SymbolTable'
   are now returned.
 
-- Significant internal code resturcturing to encasulate parse-related
-  data structures into the 'Symbol Table' object.  This eliminated
-  most of the global variables.
+- There is significant internal code restructuring to encasulate
+  parse-related data structures into the 'SymbolTable' object.  This
+  eliminated most of the global variables.
 
 - Template variables previously required a right hand side when
   instantiated.  It is now possible to have a construct like
@@ -31,7 +37,13 @@
   calling program to change the program name embedded in every message
   produced during the parse.
 
-
+- It is now possible to parse a configuration that is stored in-memory
+  as a list of text lines.  The 'ParseConfig' API "autodetects" whether
+  it is parsing a file or an in-memory list by  examining the type of
+  the first (mandatory) parameter passed to it.  If it is a string,
+  the program assumes it to be a file name.  If it is a list, the
+  program assumes the list contains configuration statements.  If it
+  is of any other type, the program declares an error.
 
 
 WHATSNEW For 'tconfpy' 1.185    (Sun May  2 03:07:05 CDT 2004)