diff --git a/IPython/history.py b/IPython/history.py
index 00af2ab..0a14f4a 100644
--- a/IPython/history.py
+++ b/IPython/history.py
@@ -31,9 +31,12 @@ def magic_history(self, parameter_s = ''):
       instead of the user-entered version: '%cd /' will be seen as
       '_ip.magic("%cd /")' instead of '%cd /'.
       
-      -g: treat the arg as a pattern to grep for in (full) history
+      -g: treat the arg as a pattern to grep for in (full) history.
+      This includes the "shadow history" (almost all commands ever written).
+      Use '%hist -g *' to show full shadow history (may be very long).
+      In shadow history, every index nuwber starts with 0.
       
-      -s: show "shadow" history
+
     """
 
     ip = self.api
diff --git a/doc/ChangeLog b/doc/ChangeLog
index 28fece7..4f1c759 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -4,6 +4,11 @@
         autocall rewrite indication, becausesometimes unicode fails to print
         properly (and you get ' - - - '). Use plain uncoloured ---> for
         unicode.
+        
+        * shadow history. Usable through "%hist -g <pat>" and "%rep 0123".
+        
+        . pickleshare 'hash' commands (hget, hset, hcompress,
+        hdict) for efficient shadow history storage.
 
 2007-06-13  Ville Vainio  <vivainio@gmail.com>