diff --git a/debian/changelog b/debian/changelog
index 173bbfd..b3948ae 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,10 @@
+pypureomapi (0.5) unstable; urgency=low
+
+  * add lookup_hostname and add_host_without_ip
+  * add pylint exceptions and Debian dh-python dependency
+
+ -- Dr. Torge Szczepanek <debian@cygnusnetworks.de>  Mon, 21 Nov 2016 15:53:04 +0100
+
 pypureomapi (0.4) unstable; urgency=low
 
   [ Dr. Torge Szczepanek ]
diff --git a/pypureomapi.py b/pypureomapi.py
index afa960b..f6c1372 100644
--- a/pypureomapi.py
+++ b/pypureomapi.py
@@ -37,7 +37,7 @@
 __author__ = "Helmut Grohne, Dr. Torge Szczepanek"
 __copyright__ = "Cygnus Networks GmbH"
 __license__ = "Apache-2.0"
-__version__ = "0.4"
+__version__ = "0.5"
 __maintainer__ = "Dr. Torge Szczepanek"
 __email__ = "debian@cygnusnetworks.de"
 
diff --git a/pypureomapi.spec b/pypureomapi.spec
index 61a636b..6e7e82d 100644
--- a/pypureomapi.spec
+++ b/pypureomapi.spec
@@ -8,7 +8,7 @@
 %endif
 
 %define srcname pypureomapi
-%define version 0.4
+%define version 0.5
 %define release 1
 %define sum Cygnus Networks GmbH %{srcname} package
 
diff --git a/setup.py b/setup.py
index a782dc8..19f7f76 100755
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
 import distutils.core
 
 distutils.core.setup(name='pypureomapi',
-	version='0.4',
+	version='0.5',
 	description="ISC DHCP OMAPI protocol implementation in Python",
 	long_description="This module grew out of frustration about pyomapi and later pyomapic. The extension modules mentioned can be used to query the ISC DHCP server for information about leases. pyomapic does this job using swig and the static library provided with ISC DHCP. It leaks and has basically no error checking. Adding error checking later turned out to be a maintenance hell with swig, so a pure python implementation for omapi, pypureomapi was born. It can mostly be used as a drop-in replacement for pyomapic.",
 	author='Helmut Grohne',