diff --git a/Makefile b/Makefile
index bb70cdf..b380478 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@
 #
 TMP        ?= /tmp
 DIST_PREFIX = ${TMP}
-VERSION     = 4.2
+VERSION     = 4.2+dev
 DEBVERSION  = $(shell echo $(VERSION)|sed 's/\(rc\|pre\|beta\|alpha\)/~\1/')
 BASE        = xen-tools
 VCS         = $(shell if git ls-files > /dev/null; then echo git; \
diff --git a/bin/xen-create-image b/bin/xen-create-image
index 3f7b072..5c4b74b 100755
--- a/bin/xen-create-image
+++ b/bin/xen-create-image
@@ -806,7 +806,7 @@ my $FAIL = 0;
 #
 # Release number.
 #
-my $RELEASE = '4.2';
+my $RELEASE = '4.2+dev';
 
 
 #
diff --git a/bin/xen-create-nfs b/bin/xen-create-nfs
index 1e226e6..2f1e7b6 100755
--- a/bin/xen-create-nfs
+++ b/bin/xen-create-nfs
@@ -131,7 +131,7 @@ $CONFIG{ 'template' } = '/etc/xen-tools/xm-nfs.tmpl';
 #
 # Release number.
 #
-my $RELEASE = '4.2';
+my $RELEASE = '4.2+dev';
 
 
 # store version number away.
diff --git a/bin/xen-delete-image b/bin/xen-delete-image
index 3f88bbf..8230c10 100755
--- a/bin/xen-delete-image
+++ b/bin/xen-delete-image
@@ -171,7 +171,7 @@ my %CONFIG;
 #
 # Release number.
 #
-my $RELEASE = '4.2';
+my $RELEASE = '4.2+dev';
 
 
 
diff --git a/bin/xen-list-images b/bin/xen-list-images
index 1f1118f..c38f116 100755
--- a/bin/xen-list-images
+++ b/bin/xen-list-images
@@ -101,7 +101,7 @@ $CONFIG{ 'prefix' } = "/etc/xen";
 #
 # Release number.
 #
-my $RELEASE = '4.2';
+my $RELEASE = '4.2+dev';
 
 
 
diff --git a/bin/xen-resize-guest b/bin/xen-resize-guest
index 43ce5df..7690e44 100755
--- a/bin/xen-resize-guest
+++ b/bin/xen-resize-guest
@@ -116,7 +116,7 @@ my %CONFIG;
 #
 # Release number.
 #
-my $RELEASE = '4.2';
+my $RELEASE = '4.2+dev';
 
 
 
diff --git a/bin/xen-update-image b/bin/xen-update-image
index 1eb1473..da91240 100755
--- a/bin/xen-update-image
+++ b/bin/xen-update-image
@@ -120,7 +120,7 @@ my %CONFIG;
 #
 # Release number.
 #
-my $RELEASE = '4.2';
+my $RELEASE = '4.2+dev';
 
 
 #
diff --git a/bin/xt-create-xen-config b/bin/xt-create-xen-config
index dba7fa4..7dd7aec 100755
--- a/bin/xt-create-xen-config
+++ b/bin/xt-create-xen-config
@@ -156,7 +156,7 @@ $CONFIG{ 'extension' } = '.cfg';
 #
 # Release number.
 #
-my $RELEASE = '4.2';
+my $RELEASE = '4.2+dev';
 
 
 
diff --git a/bin/xt-customize-image b/bin/xt-customize-image
index 6321aa6..e0e0295 100755
--- a/bin/xt-customize-image
+++ b/bin/xt-customize-image
@@ -98,7 +98,7 @@ my %CONFIG;
 #
 # Release number.
 #
-my $RELEASE = '4.2';
+my $RELEASE = '4.2+dev';
 
 
 
diff --git a/bin/xt-guess-suite-and-mirror b/bin/xt-guess-suite-and-mirror
index fa1ceae..a2eb1d2 100755
--- a/bin/xt-guess-suite-and-mirror
+++ b/bin/xt-guess-suite-and-mirror
@@ -80,7 +80,7 @@ use strict;
 #
 # Release number.
 #
-my $RELEASE = '4.2';
+my $RELEASE = '4.2+dev';
 
 # Init
 my $mirror = '';
diff --git a/bin/xt-install-image b/bin/xt-install-image
index e93edd0..ac3bdd9 100755
--- a/bin/xt-install-image
+++ b/bin/xt-install-image
@@ -117,7 +117,7 @@ my %CONFIG;
 #
 # Release number.
 #
-my $RELEASE = '4.2';
+my $RELEASE = '4.2+dev';
 
 
 #
diff --git a/debian/changelog b/debian/changelog
index 2c4b092..4dec5b4 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+xen-tools (4.2+dev-1) UNRELEASED; urgency=low
+
+  * New upstream snapshot
+
+ -- Axel Beckert <abe@debian.org>  Sat, 30 Oct 2010 17:31:40 +0200
+
 xen-tools (4.2-1) unstable; urgency=low
 
   * New upstream release