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+.. This work is licensed under a Creative Commons Attribution 4.0
+   International License.
+.. http://creativecommons.org/licenses/by/4.0
+.. (c) ONAP Project and its contributors
+.. _release_notes_istanbul:
+
+:orphan:
+
+*************************************
+ONAP Operations Manager Release Notes
+*************************************
+
+Previous Release Notes
+======================
+
+- :ref:`Honolulu <release_notes_honolulu>`
+- :ref:`Guilin <release_notes_guilin>`
+- :ref:`Frankfurt <release_notes_frankfurt>`
+- :ref:`El Alto <release_notes_elalto>`
+- :ref:`Dublin <release_notes_dublin>`
+- :ref:`Casablanca <release_notes_casablanca>`
+- :ref:`Beijing <release_notes_beijing>`
+- :ref:`Amsterdam <release_notes_amsterdam>`
+
+Abstract
+========
+
+This document provides the release notes for the Istanbul release.
+
+Summary
+=======
+
+
+
+Release Data
+============
+
++--------------------------------------+--------------------------------------+
+| **Project**                          | OOM                                  |
+|                                      |                                      |
++--------------------------------------+--------------------------------------+
+| **Docker images**                    | N/A                                  |
+|                                      |                                      |
++--------------------------------------+--------------------------------------+
+| **Release designation**              | Istanbul                             |
+|                                      |                                      |
++--------------------------------------+--------------------------------------+
+| **Release date**                     | 2021/11/04                           |
+|                                      |                                      |
++--------------------------------------+--------------------------------------+
+
+New features
+------------
+
+
+**Bug fixes**
+
+A list of issues resolved in this release can be found here:
+https://jira.onap.org/projects/OOM/versions/11074
+
+
+**Known Issues**
+
+
+Deliverables
+------------
+
+Software Deliverables
+~~~~~~~~~~~~~~~~~~~~~
+
+OOM provides `Helm charts <https://nexus3.onap.org/service/rest/repository/browse/onap-helm-release/>`_
+
+
+Documentation Deliverables
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Known Limitations, Issues and Workarounds
+=========================================
+
+Known Vulnerabilities
+---------------------
+
+
+Workarounds
+-----------
+
+- `OOM-2754 <https://jira.onap.org/browse/OOM-2754>`_
+  Because of *updateEndpoint* property added to *cmpv2issuer* CRD
+  it is impossible to upgrade platform component from Honolulu to Istanbul
+  release without manual steps. Actions that should be performed:
+
+  #. Update the CRD definition::
+
+     > kubectl -n onap apply -f oom/kubernetes/platform/components/cmpv2-cert-provider/crds/cmpv2issuer.yaml
+  #. Upgrade the component::
+
+     > helm -n onap upgrade dev-platform oom/kubernetes/platform
+  #. Make sure that *cmpv2issuer* contains correct value for
+     *spec.updateEndpoint*. The value should be: *v1/certificate-update*.
+     If it's not, edit the resource::
+
+     > kubectl -n onap edit cmpv2issuer cmpv2-issuer-onap
+
+
+Security Notes
+--------------
+
+**Fixed Security Issues**
+
+References
+==========
+
+For more information on the ONAP Istanbul release, please see:
+
+#. `ONAP Home Page`_
+#. `ONAP Documentation`_
+#. `ONAP Release Downloads`_
+#. `ONAP Wiki Page`_
+
+
+.. _`ONAP Home Page`: https://www.onap.org
+.. _`ONAP Wiki Page`: https://wiki.onap.org
+.. _`ONAP Documentation`: https://docs.onap.org
+.. _`ONAP Release Downloads`: https://git.onap.org