feat: add 0.9.12 in release section (WIP)

umh.docs.umh.app/content/en/docs/releases/notes/0.9.12.md

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+---
+title: Release note for version 0.9.12
+content_type: note
+description: |
+    This page contains the changelog for the United Manufacturing Hub version
+    0.9.12.
+weight: -3
+---
+
+## {{% heading "features" %}}
+
+- MQTT Broker, Kafka Broker, Kafka Console are now exposed by a LoadBalancer Service. {{< pr "1487" >}}
+- Redis is now deployed in standalone mode instead of cluster mode {{< pr "1505" >}}
+- Added cache size overwrite and reduced memory usage for mqtt-kafka-bridge {{< pr "1494" >}}
+
+## {{% heading "fixes" %}}
+
+- Mqttbridge tries to mount a Secret with the wrong name {{< pr "1483" >}}
+- Mqttbridge `REMOTE_CERTIFICATE_NAME` env variable set to the wrong value reference {{< pr "1484" >}}
+- IoTSensorsMQTT now uses the generic MQTT broker Service {{< pr "1485" >}}
+- MQTT broker extensions’ PVC template references the correct value {{< pr "1486" >}}
+- Additional safeguards against null pointers {{< pr "1461" >}}
+- Redis & parsing issues {{< pr "1468" >}}
+
+## {{% heading "deprecations" %}}
+
+- Removed cameraconnect {{< pr "1481" >}}
+- Removed blobstorage {{< pr "1520" >}}
+
+## {{% heading "dependencies" %}}
+
+### Added
+
+- github.com/Shopify/sarama v1.38.1 {{< pr "1491" >}}
+- github.com/united-manufacturing-hub/Sarama-Kafka-Wrapper v1.3.0 {{< pr "1491" >}}
+
+### Changed
+
+- golang: 1.19-alpine3.16 → 1.20-alpine3.16 {{< pr "1451" >}}
+- golang.org/x/net: 0.5.0 → 0.7.0 {{< pr "1463" >}}
+- github.com/minio/minio-go/v7: v7.0.47 → v7.0.50 {{< pr "1511" >}}
+- github.com/gin-gonic/gin: 1.8.2 → 1.9.0 {{< pr "1466" >}}
+- Node-RED Helm Chart 2.0.6 → 3.0.2 {{< pr "1489" >}}
+- k8s.io/apimachinery: 0.26.1 → 0.26.3 {{< pr "1490" >}}
+- Redpanda console Helm Chart: 0.3.1 → 0.5.6 {{< pr "1500" >}}
+- Grafana Helm Chart: 6.49.0 → 6.52.4 {{< pr "1504" >}}
+- Redis Helm Chart: 17.3.17 → 17.9.0 {{< pr "1505" >}}

umh.docs.umh.app/content/en/docs/releases/whatsnew/0.9.12.md

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+---
+title: "What's New in Version 0.9.12"
+content_type: whatsnew
+description: |
+    This section contains information about the new features and changes in the
+    United Manufacturing Hub introduced in version 0.9.12.
+weight: -3
+---
+
+<!-- overview -->
+
+Welcome to United Manufacturing Hub version 0.9.12! Read on to learn about
+the new features of the UMH Datasource V2 plugin for Grafana, Redis running
+in standalone mode, and more.
+
+For a complete list of changes, refer to the
+[release notes](/docs/releases/notes/0.9.12/).
+
+<!-- body -->
+
+## Grafana
+
+### New Grafana version
+
+Grafana has been upgraded to version 9.4.3. This introduces new search and
+navigation features, a redesigned details section of the logs, and a new
+data source connection page.
+
+Head over to the [Grafana release notes](https://grafana.com/docs/grafana/latest/whatsnew/whats-new-in-v9-4/)
+to learn more about the new features.
+
+### UMH Datasource V2 plugin
+
+_TODO by @Scarjit_
+
+## Redis in standalone mode
+
+Redis, the service used for caching, is now deployed in standalone mode. This
+change introduces these benefits:
+
+- Simplicity: Running Redis in standalone mode is simpler than using a
+  master-replica topology with Sentinel. With standalone mode, there is only one
+  Redis instance to manage, whereas with master-replica, you need to manage
+  multiple Redis instances and the Sentinel process. This simplicity can reduce
+  complexity and make it easier to manage Redis instances.
+- Lower Overhead: Standalone mode has lower overhead than using a master-replica
+  topology with Sentinel. In a master-replica topology, there is a communication
+  overhead between the master and the replicas, and Sentinel adds additional
+  overhead for monitoring and failover management. In contrast, standalone mode
+  does not have this overhead.
+- Better Performance: Since standalone mode does not have the overhead of
+  master-replica topology with Sentinel, it can provide better performance.
+  Standalone mode provides faster response times and can handle more requests
+  per second than a master-replica topology with Sentinel.
+
+That being said, it's important to note that a master-replica topology with
+Sentinel provides higher availability and failover capabilities than standalone
+mode.
+
+## All basic services are now exposed by a LoadBalancer Service
+
+The MQTT Broker, Kafka Broker, and Kafka Console are now exposed by a
+LoadBalancer Service, along with the Database, Grafana and Node-RED. This
+change makes it easier to access these services from outside the cluster, as
+they are now accessible via the IP address of the cluster.
+
+When installing the United Manufacturing Hub locally, the cluster ports are
+automatically mapped to the host ports. This means that you can access the
+services from your browser by using `localhost` and the port number.
+
+Read more about connecting to the services from outside the cluster in the
+[related documentation](/docs/production-guide/administration/access-services-from-outside-cluster/).
+
+## Deprecations
+
+### Cameraconnect
+
+The Cameraconnect microservice has been deprecated and removed from the
+United Manufacturing Hub. It's development has been taken over by [Anticipate](https://www.anticipate.ml/).
+
+### Blob storage
+
+The blob storage service has been deprecated and removed from the United
+Manufacturing Hub. This includes the MinIO Operator and Tenant, and the MQTT to
+Blob microservice.
+
+## Fixes
+
+Many fixes have been made to the United Manufacturing Hub, including known
+issues for Sensorconnect and MQTT Bridge.