update versioning for 2.1.0-rc4 release
diff --git a/CHANGES.txt b/CHANGES.txt
index ff417b1..5ba30cc 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,4 @@
-2.1.0-final
+2.1.0-rc4
  * Updated memtable_cleanup_threshold and memtable_flush_writers defaults 
    (CASSANDRA-7551)
  * (Windows) fix startup when WMI memory query fails (CASSANDRA-7505)
diff --git a/build.xml b/build.xml
index fd0c72b..ca973cc 100644
--- a/build.xml
+++ b/build.xml
@@ -25,7 +25,7 @@
     <property name="debuglevel" value="source,lines,vars"/>
 
     <!-- default version and SCM information -->
-    <property name="base.version" value="2.1.0-rc3"/>
+    <property name="base.version" value="2.1.0-rc4"/>
     <property name="scm.connection" value="scm:git://git.apache.org/cassandra.git"/>
     <property name="scm.developerConnection" value="scm:git://git.apache.org/cassandra.git"/>
     <property name="scm.url" value="http://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=tree"/>
diff --git a/debian/changelog b/debian/changelog
index 6f8e3ec..7a38d2d 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+cassandra (2.1.0~rc4) unstable; urgency=medium
+
+  * New RC release
+
+ -- Eric Evans <eevans@apache.org>  Fri, 18 Jul 2014 13:40:48 -0500
+
 cassandra (2.1.0~rc3) unstable; urgency=medium
 
   * New RC release