diff --git a/ChangeLog b/ChangeLog
index 92cac425..51c12904 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-12-19  Peter Stephenson  <pws@csr.com>
+
+	* unposted: Config/version.mk: update version to 4.3.15-dev-0 to
+	avoid dev version clashing with installation.
+
 2011-12-17  Peter Stephenson  <p.w.stephenson@ntlworld.com>
 
 	* unposted: release 4.3.15.
@@ -15771,5 +15776,5 @@
 
 *****************************************************
 * This is used by the shell to define $ZSH_PATCHLEVEL
-* $Revision: 1.5544 $
+* $Revision: 1.5545 $
 *****************************************************
diff --git a/Config/version.mk b/Config/version.mk
index 4fe21a1d..7e460aef 100644
--- a/Config/version.mk
+++ b/Config/version.mk
@@ -27,5 +27,5 @@
 # This must also serve as a shell script, so do not add spaces around the
 # `=' signs.
 
-VERSION=4.3.15
-VERSION_DATE='December 17, 2011'
+VERSION=4.3.15-dev-0
+VERSION_DATE='December 19, 2011'