diff --git a/python-instance-billing-flavor-check-0.1.2.tar.gz b/python-instance-billing-flavor-check-0.1.2.tar.gz
deleted file mode 100644
index 41b9451..0000000
--- a/python-instance-billing-flavor-check-0.1.2.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:a5d99bd135cd7c40548b638008a3410b9e8f2155a10e6a519b60c6c044cdc322
-size 16101
diff --git a/python-instance-billing-flavor-check-1.0.0.tar.gz b/python-instance-billing-flavor-check-1.0.0.tar.gz
new file mode 100644
index 0000000..3f32f08
--- /dev/null
+++ b/python-instance-billing-flavor-check-1.0.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6beef9a9f22ec16855075fed116ba1300662f900d7fb58f224336130576abce2
+size 16180
diff --git a/python-instance-billing-flavor-check.changes b/python-instance-billing-flavor-check.changes
index 1afd7e5..28c13c1 100644
--- a/python-instance-billing-flavor-check.changes
+++ b/python-instance-billing-flavor-check.changes
@@ -1,3 +1,13 @@
+-------------------------------------------------------------------
+Sat Feb 22 13:34:18 UTC 2025 - Robert Schweikert <rjschwei@suse.com>
+
+- Update to version 1.0.0 (jsc#PCT-531)
+  + API incompatibility: The check_payg_byos function no longer exits, it now
+    returns a tuple of (flavor, exit_code). This makes the function reusable.
+  + Update the build setup to work with the system interpreter of
+    upcoming SLE releases. SLE 12 stays with the Python 3.4 interpreter
+    and SLE 15 with the Python 3.6 interpreter.
+
 -------------------------------------------------------------------
 Fri Jan 31 16:18:33 UTC 2025 - Robert Schweikert <rjschwei@suse.com>
 
@@ -6,7 +16,7 @@ Fri Jan 31 16:18:33 UTC 2025 - Robert Schweikert <rjschwei@suse.com>
     IP version for access the update servers
   + Improve reliability of flavor detection. Try an update server multiple
     times to get an answer, if we hit timeouts return the value flavor
-    value from a cahce file.
+    value from a cache file.
 
 -------------------------------------------------------------------
 Tue Jan 21 14:17:27 UTC 2025 - Robert Schweikert <rjschwei@suse.com>
diff --git a/python-instance-billing-flavor-check.spec b/python-instance-billing-flavor-check.spec
index 1625ee9..c4756dd 100644
--- a/python-instance-billing-flavor-check.spec
+++ b/python-instance-billing-flavor-check.spec
@@ -14,21 +14,28 @@
 
 # Please submit bugfixes or comments via http://bugs.opensuse.org/
 #
-%define skip_python2 1
+
+%if 0%{?suse_version} >= 1600
+%define pythons %{primary_python}
+%else
+%define pythons python3
+%endif
+%global _sitelibdir %{%{pythons}_sitelib}
 
 Summary:        Cloud Billing Flavour Check
 Name:           python-instance-billing-flavor-check
-Version:        0.1.2
+Version:        1.0.0
 Release:        0
 License:        GPL-3.0
 Group:          Productivity/Networking/Web/Utilities
 URL:            https://github.com/SUSE-Enceladus/instance-billing-flavor-check
 Source0:        %{name}-%{version}.tar.gz
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root
-Requires:       python3
-Requires:       python3-lxml
-Requires:       python3-requests
-BuildRequires:  python3-setuptools
+Requires:       %{pythons}
+Requires:       %{pythons}-lxml
+Requires:       %{pythons}-requests
+Requires:       cloud-regionsrv-client >= 10.2.0
+BuildRequires:  %{pythons}-setuptools
 BuildRequires:  python-rpm-macros
 
 %description