diff --git a/doc/ZEO/ClientCache.txt b/doc/ZEO/ClientCache.txt
index 51cb71ef47edb7c09279f98762707d974ede14b7..49d09d46376a9fa89c026db136032dfe62921a23 100644
--- a/doc/ZEO/ClientCache.txt
+++ b/doc/ZEO/ClientCache.txt
@@ -41,11 +41,6 @@ ZEO Client Cache
 
   and so on.
 
-  As of ZEO 2.0 beta 2, the above algorithm is augmented as follows.
-  When a cache load finds a hit in the "old" cache file, the data is
-  copied to the "current" cache file.  This appears to improve the hit
-  rate.
-
   Persistent cache files are created in the directory named in the
   'var' argument to the ClientStorage (see ClientStorage.txt) or in
   the 'var' subdirectory of the directory given by the INSTANCE_HOME