diff --git a/_service b/_service
index 7bdaf6c..3cd18f8 100644
--- a/_service
+++ b/_service
@@ -3,8 +3,8 @@
     <param name="url">https://github.com/openSUSE/release-compare.git</param>
     <param name="scm">git</param>
 
-    <param name="version">0.5.6</param>
-    <param name="revision">0.5.6</param>
+    <param name="version">0.9.0</param>
+    <param name="revision">0.9.0</param>
 
     <param name="extract">release-compare.spec</param>
   </service>
diff --git a/release-compare-0.5.6.obscpio b/release-compare-0.5.6.obscpio
deleted file mode 100644
index 75c7ec0..0000000
--- a/release-compare-0.5.6.obscpio
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:25cbc8450398f9dba113999892dacdcf720fd2a301fb25e397ee9fdca6ab3c40
-size 46090
diff --git a/release-compare-0.9.0.obscpio b/release-compare-0.9.0.obscpio
new file mode 100644
index 0000000..527a3fd
--- /dev/null
+++ b/release-compare-0.9.0.obscpio
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7d0cb3b280757d57bec6ef3f588bc0a7d847570aa8712cf8eb39830a020b8f51
+size 81419
diff --git a/release-compare.changes b/release-compare.changes
index 75ea662..50c0ccc 100644
--- a/release-compare.changes
+++ b/release-compare.changes
@@ -1,3 +1,16 @@
+-------------------------------------------------------------------
+Fri May 26 15:05:28 UTC 2023 - Joachim Gleissner <jgleissner@suse.com>
+
+- 0.9.0
+  * Re-write of create_changelog in python
+  * Support for JSON output
+  * Support for handling image config changelog (image history) as
+    produced by keg OBS source service (JSON and YAML formats supported)
+  * Support for including full package list in change log
+  * Parse version number for selecting most recent old obsgendiff
+    (avoids mismatches)
+  * Add configuration options via _release_compare in package source
+
 -------------------------------------------------------------------
 Tue May 17 14:53:30 UTC 2022 - Joachim Gleissner <jgleissner@suse.com>
 
diff --git a/release-compare.obsinfo b/release-compare.obsinfo
index 27f7954..043285c 100644
--- a/release-compare.obsinfo
+++ b/release-compare.obsinfo
@@ -1,4 +1,4 @@
 name: release-compare
-version: 0.5.6
-mtime: 1651472540
-commit: ff3235f233bfc4274e1109b85cfc591c8de716ef
+version: 0.9.0
+mtime: 1685111718
+commit: b5ee192915699eda95faa39930c384c774bb9cae
diff --git a/release-compare.spec b/release-compare.spec
index b138351..569f75d 100644
--- a/release-compare.spec
+++ b/release-compare.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package release-compare
 #
-# Copyright (c) 2022 SUSE LLC
+# Copyright (c) 2023 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -21,10 +21,14 @@ Summary:        Release Compare Script
 License:        GPL-3.0-or-later
 Group:          Development/Tools/Building
 URL:            https://github.com/openSUSE/release-compare
-Version:        0.5.6
+Version:        0.9.0
 Release:        0
 Source:         %name-%version.tar.xz
 BuildArch:      noarch
+Requires:       python3-PyYAML
+BuildRequires:  python3-PyYAML
+BuildRequires:  python3-pytest
+BuildRequires:  python3-setuptools
 
 %description
 This package contains scripts to create changelog files relative
@@ -39,15 +43,14 @@ Note: you need to use a releasetarget definition in your OBS repository
 %build
 
 %install
-mkdir -p $RPM_BUILD_ROOT/usr/lib/build/obsgendiff.d $RPM_BUILD_ROOT/%_defaultdocdir/%name
-install -m 0755 create_changelog $RPM_BUILD_ROOT/usr/lib/build/obsgendiff.d/
+make DESTDIR=%{buildroot} PREFIX=%{_prefix}
 
 %check
-# basic syntax check
-bash -n $RPM_BUILD_ROOT/usr/lib/build/obsgendiff.d/create_changelog || exit 1
+pytest
 
 %files
 %license LICENSE
+%doc README.rst
 /usr/lib/build
 
 %changelog