doc: add 7.0.3 release notes

Closes osism/issues#1333

Signed-off-by: Christian Berendt <[email protected]>

doc/source/index.rst

@@ -2,7 +2,7 @@
 OSISM releases
 ==============
 
-The latest available stable release is 7.0.2.
+The latest available stable release is 7.0.3.
 
 Release notes
 =============

doc/source/notes/7.rst

@@ -6,13 +6,55 @@ Instructions for the upgrade can be found in the `upgrade guide <https://osism.g
 
 7.0.0a, 7.0.0b, 7.0.0c, 7.0.0d are pre-releases. Do not use these releases.
 
+7.0.3
+=====
+
+Release date: 3. May 2024
+
+* The Ceph service images have not been rebuilt. No upgrade of Ceph is required.
+
+* The OpenStack service images for Octavia and Nova have been rebuilt. Upgrades of the Octavia
+  and Nova services are recommended. No upgrades of other OpenStack and associated
+  infrastructure services such as MariaDB or RabbitMQ are required.
+
+* During the preparation of the upgrades of the regions of the PCO a bug (`osism/issues#937 <https://github.com/osism/issues/issues/973>`_)
+  has been noticed which leads to a delay of up to 2 minutes between the necessary container stops and starts.
+  This is due to a bug in the service units of all Kolla services. The bug is fixed in the current release.
+  To avoid the delay during an upgrade, a fix must be applied in advance for all  srvice units from
+  Kolla.
+
+  .. code-block:: console
+
+     osism apply fix-gh937
+
+* OVN container images will be built without the `` -march=broadwell`` parameter in the future. The OVN
+  images have not been updated with this release, this only serves as an announcement for the future. By
+  removing the parameter, it is possible to use the OVN container images on older CPUs. It is planned to
+  provide different variants of the OVN and OVS container images in the future to enable parameters for
+  modern CPUs in order to improve performance in particular.
+
+* Kubernetes Cluster API for the 1.30 series is available. They are now provided directly with
+  ``osism manage image clusterapi``. This means that Kubernetes Cluster API images are now available
+  for series 1.27, 1.28, 1.29 and 1.30.
+
+* All Ansible collections have been prepared for use with Ubuntu 24.04. It is currently not recommended to
+  upgrade existing clusters to Ubuntu 24.04 or to install new clusters with Ubuntu 24.04. There will be a
+  note in the release notes from which Ubuntu 24.04 can be used.
+
+* A new role ``tempest`` has been added to the Ansible collection ``osism.validations``. This makes it possible
+  to perform significantly more tests than with the previously used ``osism.validations.refstack`` role. The new
+  role will be used in the testbed in future to significantly increase the number of tests performed in the CI.
+
+* New documentation for the `project manager <https://osism.tech/docs/guides/operations-guide/openstack/day2-operations/project-manager>`_
+  and the `simple stress <https://osism.tech/docs/guides/operations-guide/openstack/day2-operations/simple-stress>`_.
+
 7.0.2
 =====
 
 Release date: 17. April 2024
 
-* The Ceph & OpenStack service images have not been rebuilt. No upgrades of Ceph & OpenStack (and associated
-  infrastructure services such as MariaDB or RabbitMQ) are required.
+* The Ceph & OpenStack service images have not been rebuilt. No upgrades of Ceph & OpenStack and associated
+  infrastructure services such as MariaDB or RabbitMQ are required.
 
 * Properties for device type vrfs are now supported in the osism.commons.network role.