Release Notes CIS 2.7.1 (#2195)

Signed-off-by: Vivek Lohiya <[email protected]>

Author: vklohiya

docs/RELEASE-NOTES.rst

@@ -1,18 +1,37 @@
 Release Notes for Container Ingress Services for Kubernetes & OpenShift
 =======================================================================
 
-Next Release
+2.7.1
 -------------
 Enhancements
 ````````````
 * Optimized processing of ConfigMaps with FilterTenants enabled
 * Added support for multihost VS policy rules for same path and service backend combination
+* Improved error handling with EDNS Custom resource
 * :issues:`1872` Support protocol UDP in Services of type LoadBalancer
 * :issues:`1918` ExternalDNS adds both VSs to a Wide IP pool
 * :issues:`2051` Fix AS3 Postdelay issue when error occurs
 * :issues:`2077` Fix recreating ARPs when CIS restarts
 * :issues:`2172` Fix Endpoint NodeName validation issue
-* :issues:`2184` Helm Chart ClusterRole Does Not Have Correct Permissions
+* Helm Chart Enhancements:
+    - issues:`2184` Helm Chart ClusterRole does not have correct permissions
+
+FIC Enhancements
+````````````````
+* Added support for FIC installation using Helm Charts, Refer `Documentation <https://github.com/F5Networks/f5-ipam-controller/blob/main/helm-charts/f5-ipam-controller/README.md>`_
+* Added support for FIC installation using OpenShift Operator
+
+Known issues
+````````````
+* CIS does not delete the arp entries immediately from BigIP, When we remove all the endpoints for a service in cccl mode,
+* Unable to pass multiple infoblox labels to FIC helm charts & OpenShit Operator
+* Deletion of EDNS resource not removing Wide IP config from BigIP intermittently
+* CIS sends the failed tenant declaration every 30 secs with filter-tenant parameter when a 422 error occurs in as3 response
+
+Upgrade notes
+``````````````
+* Moving from CIS > 2.6 with IPAM, see troubleshooting guide for IPAM issue ``ipams.fic.f5.com not found``. Refer `Troubleshooting Section <https://github.com/F5Networks/f5-ipam-controller/blob/main/docs/faq/README.md>`_
+* Moving to CIS > 2.4.1 requires update to RBAC and CR schema definition before upgrade. See `RBAC <https://raw.githubusercontent.com/F5Networks/k8s-bigip-ctlr/master/docs/config_examples/rbac/clusterrole.yaml>`_ and `CR schema <https://raw.githubusercontent.com/F5Networks/k8s-bigip-ctlr/master/docs/config_examples/customResourceDefinitions/customresourcedefinitions.yml>`_
 
 
 2.7.0