diff --git a/pep-0273.txt b/pep-0273.txt
index 9842df39d..4809432d9 100644
--- a/pep-0273.txt
+++ b/pep-0273.txt
@@ -11,12 +11,22 @@ Python-Version: 2.3
 
 
 Abstract
+
     This PEP adds the ability to import Python modules
     *.py, *.py[co] and packages from zip archives.  The
     same code is used to speed up normal directory imports
     provided os.listdir is available.
 
+Note
 
+    Zip imports were added to Python 2.3, but the final implementation
+    uses an approach different from the one described in this PEP.
+    The 2.3 implementation is SourceForge patch #652586, which adds
+    new import hooks described in PEP 302.  
+
+    The rest of this PEP is therefore only of historical interest.
+
+   
 Specification
 
     Currently, sys.path is a list of directory names as strings.  If