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+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+
+..      =====================================
+..      * * *    ISTANBUL  MAINTENANCE  * * *
+..      =====================================
+
+
+Version: 9.0.1
+==============
+
+Abstract
+--------
+
+This document provides the release notes for the Istanbul Maintenance release
+
+
+Summary
+-------
+
+This maintenance release is primarily to resolve bugs identified during Istanbul release testing.
+
+
+Release Data
+------------
+
++--------------------------------------+--------------------------------------+
+| **Project**                          | DCAE                                 |
+|                                      |                                      |
++--------------------------------------+--------------------------------------+
+| **Docker images**                    | See Istanbul Maintenance Release     |
+|                                      |         Deliverable (below)          |
++--------------------------------------+--------------------------------------+
+| **Release designation**              | Istanbul Maintenance Release         |
+|                                      |                                      |
++--------------------------------------+--------------------------------------+
+| **Release date**                     | 2022/01/31                           |
+|                                      |                                      |
++--------------------------------------+--------------------------------------+
+
+New features
+------------
+
+None
+
+**Bug fixes**
+
+- `DCAEGEN2-3022 <https://jira.onap.org/browse/DCAEGEN2-3022>`_ Log4j vulnerability fix
+- `DCAEGEN2-2998 <https://jira.onap.org/browse/DCAEGEN2-2998>`_ Update SON-Handler missing configuration in helm
+
+
+**Known Issues**
+
+None
+
+
+Security Notes
+--------------
+
+*Known Vulnerabilities in Used Modules*
+
+    dcaegne2/services/mapper includes transitive dependency on log4j 1.2.17; this will be addressed in later release (DCAEGEN2-3105)
+
+
+Istanbul Maintenance Rls Deliverables
+-------------------------------------
+
+Software Deliverables
+
+.. csv-table::
+   :header: "Repository", "SubModules", "Version & Docker Image (if applicable)"
+   :widths: auto
+
+   "dcaegen2/collectors/restconf", "", "onap/org.onap.dcaegen2.collectors.restconfcollector:1.2.7"
+   "dcaegen2/collectors/ves", "", "onap/org.onap.dcaegen2.collectors.ves.vescollector:1.10.3"
+   "dcaegen2/services/mapper", "", "onap/org.onap.dcaegen2.services.mapper.vesadapter.universalvesadaptor:1.3.2"