diff --git a/CHANGELOG.md b/CHANGELOG.md
index bbb39ce55..71a1fc687 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,23 @@
 # Changelog
 
+## v1.3.0
+* Add DSE 6.8.1 support, and update to config-builder 1.0.1 [#139](https://github.com/datastax/cass-operator/commit/8026d3687ee6eb783743ea5481ee51e69e284e1c)
+* Experimental support for Cassandra Reaper running in sidecar mode [#116](https://github.com/datastax/cass-operator/commit/30ac85f3d71886b750414e90476c42394d439026)
+* Support using RedHat universal base image containers [#95](https://github.com/datastax/cass-operator/commit/6f383bd8d22491c5a784611620e1327dafc3ffae)
+* Provide an easy way to specify additional seeds in the CRD [#136](https://github.com/datastax/cass-operator/commit/0125b1f639830fad31f4b0b1b955ac991212fd16)
+* Unblocking Kubernetes 1.18 support [#132](https://github.com/datastax/cass-operator/commit/b8bbbf15394119cbbd604aa40fdb9224a9f312cd)
+* Bump version of Management API sidecar to 0.1.5 [#129](https://github.com/datastax/cass-operator/commit/248b30efe797d0656f2fc5c8e96dc3c431ab9a32)
+* No need to always set LastRollingRestart status [#124](https://github.com/datastax/cass-operator/commit/d0635a2507080455ed252a26252a336a96252bc9)
+* Set controller reference after updating StatefulSets, makes sure StatefulSets are cleaned up on delete [#121](https://github.com/datastax/cass-operator/commit/f90a4d30d37fa8ace8119dc7808fd7561df9270e)
+* Use the PodIP for Management API calls [#112](https://github.com/datastax/cass-operator/commit/dbf0f67aa7c3831cd5dacc52b10b4dd1c59a32d1)
+* Watch secrets to trigger reconciling user and password updates [#109](https://github.com/datastax/cass-operator/commit/394d25a6d6ec452ecd1667f3dca40b7496379eea)
+* Remove NodeIP from status [#96](https://github.com/datastax/cass-operator/commit/71ed104a7ec642e13ef27bafb6ac1a6c0a28a21e)
+* Add ability to specify additional Cassandra users in CassandraDatacenter [#94](https://github.com/datastax/cass-operator/commit/9b376e8be93976a0a344bcda2e417aa90dd9758f)
+* Improve validation for webhook configuration [#103](https://github.com/datastax/cass-operator/commit/6656d1a2fd9cdec1fe495c28dd3fbac9617341f6)
+
 ## v1.2.0
-* Support for several k8s versions in the helm chart - [#97](https://github.com/datastax/cass-operator/commit/9d76ad8258aa4e1d4893a357546de7de80aef0a0)
-* Ability to roll back a broken upgrade / configuration change - [#85](https://github.com/datastax/cass-operator/commit/86b869df65f8180524dc12ff11502f6f6889eef5)
+* Support for several k8s versions in the helm chart [#97](https://github.com/datastax/cass-operator/commit/9d76ad8258aa4e1d4893a357546de7de80aef0a0)
+* Ability to roll back a broken upgrade / configuration change [#85](https://github.com/datastax/cass-operator/commit/86b869df65f8180524dc12ff11502f6f6889eef5)
 * Mount root as read-only and temp dir as memory emptyvol [#86](https://github.com/datastax/cass-operator/commit/0474057e8339da4f89b2e901ab697f10a2184d78)
 * Fix managed-by label [#84](https://github.com/datastax/cass-operator/commit/39519b8bae8795542a5fb16a844aeb55cf3b2737)
 * Add sequence diagrams [#90](https://github.com/datastax/cass-operator/commit/f1fe5fb3e07cec71a2ba0df8fabfec2b7751a95b)
diff --git a/README.md b/README.md
index b0dbd2151..b703062f7 100644
--- a/README.md
+++ b/README.md
@@ -8,9 +8,9 @@ The DataStax Kubernetes Operator for Apache Cassandra®
 Quick start:
 ```console
 # *** This is for GKE Regular Channel - k8s 1.16 -> Adjust based on your cloud or storage options
-kubectl create -f https://raw.githubusercontent.com/datastax/cass-operator/v1.2.0/docs/user/cass-operator-manifests-v1.16.yaml
-kubectl create -f https://raw.githubusercontent.com/datastax/cass-operator/v1.2.0/operator/k8s-flavors/gke/storage.yaml
-kubectl -n cass-operator create -f https://raw.githubusercontent.com/datastax/cass-operator/v1.2.0/operator/example-cassdc-yaml/cassandra-3.11.6/example-cassdc-minimal.yaml
+kubectl create -f https://raw.githubusercontent.com/datastax/cass-operator/v1.3.0/docs/user/cass-operator-manifests-v1.16.yaml
+kubectl create -f https://raw.githubusercontent.com/datastax/cass-operator/v1.3.0/operator/k8s-flavors/gke/storage.yaml
+kubectl -n cass-operator create -f https://raw.githubusercontent.com/datastax/cass-operator/v1.3.0/operator/example-cassdc-yaml/cassandra-3.11.6/example-cassdc-minimal.yaml
 ```
 
 ### Loading the operator
@@ -19,7 +19,7 @@ Installing the Cass Operator itself is straightforward. We have provided manifes
 
 ```console
 K8S_VER=v1.16
-kubectl apply -f https://raw.githubusercontent.com/datastax/cass-operator/v1.2.0/docs/user/cass-operator-manifests-$K8S_VER.yaml
+kubectl apply -f https://raw.githubusercontent.com/datastax/cass-operator/v1.3.0/docs/user/cass-operator-manifests-$K8S_VER.yaml
 ```
 
 Note that since the manifest will install a [Custom Resource Definition](https://kubernetes.io/docs/concepts/extend-kubernetes/api-extension/custom-resources/), the user running the above command will need cluster-admin privileges.
@@ -52,7 +52,7 @@ reclaimPolicy: Delete
 Apply the above as follows:
 
 ```
-kubectl apply -f https://raw.githubusercontent.com/datastax/cass-operator/v1.2.0/operator/k8s-flavors/gke/storage.yaml
+kubectl apply -f https://raw.githubusercontent.com/datastax/cass-operator/v1.3.0/operator/k8s-flavors/gke/storage.yaml
 ```
 
 ### Creating a CassandraDatacenter
@@ -92,7 +92,7 @@ spec:
 Apply the above as follows:
 
 ```console
-kubectl -n cass-operator apply -f https://raw.githubusercontent.com/datastax/cass-operator/v1.2.0/operator/example-cassdc-yaml/cassandra-3.11.6/example-cassdc-minimal.yaml
+kubectl -n cass-operator apply -f https://raw.githubusercontent.com/datastax/cass-operator/v1.3.0/operator/example-cassdc-yaml/cassandra-3.11.6/example-cassdc-minimal.yaml
 ```
 
 You can check the status of pods in the Cassandra cluster as follows:
@@ -171,7 +171,7 @@ roleName: cass-operator
 roleBindingName: cass-operator
 deploymentName: cass-operator
 deploymentReplicas: 1
-image: "datastax/cass-operator:1.2.0"
+image: "datastax/cass-operator:1.3.0"
 imagePullPolicy: IfNotPresent
 ```
 
@@ -296,7 +296,7 @@ kubectl delete cassdcs --all-namespaces --all
 
 Remove the operator Deployment, CRD, etc.
 ```
-kubectl delete -f https://raw.githubusercontent.com/datastax/cass-operator/v1.2.0/docs/user/cass-operator-manifests-v1.16.yaml
+kubectl delete -f https://raw.githubusercontent.com/datastax/cass-operator/v1.3.0/docs/user/cass-operator-manifests-v1.16.yaml
 ```
 
 ## Contacts
diff --git a/buildsettings.yaml b/buildsettings.yaml
index 67cbfc661..6cbbf0363 100644
--- a/buildsettings.yaml
+++ b/buildsettings.yaml
@@ -1,8 +1,8 @@
 version:
   major: 1
-  minor: 2
-  patch: 1
-  prerelease: "snapshot"
+  minor: 3
+  patch: 0
+  prerelease: "release"
 jenkins:
   master:
     plugins:
diff --git a/charts/cass-operator-chart/values.yaml b/charts/cass-operator-chart/values.yaml
index 6dd96c7bc..7c182032b 100644
--- a/charts/cass-operator-chart/values.yaml
+++ b/charts/cass-operator-chart/values.yaml
@@ -6,5 +6,5 @@ roleName: cass-operator
 roleBindingName: cass-operator
 deploymentName: cass-operator
 deploymentReplicas: 1
-image: "datastax/cass-operator:1.2.0"
+image: "datastax/cass-operator:1.3.0"
 imagePullPolicy: IfNotPresent
diff --git a/docs/user/cass-operator-manifests-v1.13.yaml b/docs/user/cass-operator-manifests-v1.13.yaml
index 90424d58c..0eaf852d7 100644
--- a/docs/user/cass-operator-manifests-v1.13.yaml
+++ b/docs/user/cass-operator-manifests-v1.13.yaml
@@ -56,6 +56,10 @@ spec:
         spec:
           description: CassandraDatacenterSpec defines the desired state of a CassandraDatacenter
           properties:
+            additionalSeeds:
+              items:
+                type: string
+              type: array
             allowMultipleNodesPerWorker:
               description: Turning this option on allows multiple server pods to be
                 created on a k8s worker node. By default the operator creates just
@@ -5891,6 +5895,17 @@ spec:
                 - name
                 type: object
               type: array
+            reaper:
+              properties:
+                enabled:
+                  type: boolean
+                image:
+                  type: string
+                imagePullPolicy:
+                  description: PullPolicy describes a policy for if/when to pull a
+                    container image
+                  type: string
+              type: object
             replaceNodes:
               description: A list of pod names that need to be replaced.
               items:
@@ -5940,6 +5955,7 @@ spec:
                 server configuration
               enum:
               - 6.8.0
+              - 6.8.1
               - 3.11.6
               - 4.0.0
               type: string
@@ -6264,6 +6280,12 @@ rules:
   - '*'
   verbs:
   - '*'
+- apiGroups:
+  - batch
+  resources:
+  - '*'
+  verbs:
+  - '*'
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
@@ -6321,7 +6343,7 @@ spec:
           value: cass-operator
         - name: SKIP_VALIDATING_WEBHOOK
           value: "FALSE"
-        image: datastax/cass-operator:1.2.0
+        image: datastax/cass-operator:1.3.0
         imagePullPolicy: IfNotPresent
         livenessProbe:
           exec:
diff --git a/docs/user/cass-operator-manifests-v1.14.yaml b/docs/user/cass-operator-manifests-v1.14.yaml
index 6663ae8e9..94f4c800d 100644
--- a/docs/user/cass-operator-manifests-v1.14.yaml
+++ b/docs/user/cass-operator-manifests-v1.14.yaml
@@ -56,6 +56,10 @@ spec:
         spec:
           description: CassandraDatacenterSpec defines the desired state of a CassandraDatacenter
           properties:
+            additionalSeeds:
+              items:
+                type: string
+              type: array
             allowMultipleNodesPerWorker:
               description: Turning this option on allows multiple server pods to be
                 created on a k8s worker node. By default the operator creates just
@@ -5891,6 +5895,17 @@ spec:
                 - name
                 type: object
               type: array
+            reaper:
+              properties:
+                enabled:
+                  type: boolean
+                image:
+                  type: string
+                imagePullPolicy:
+                  description: PullPolicy describes a policy for if/when to pull a
+                    container image
+                  type: string
+              type: object
             replaceNodes:
               description: A list of pod names that need to be replaced.
               items:
@@ -5940,6 +5955,7 @@ spec:
                 server configuration
               enum:
               - 6.8.0
+              - 6.8.1
               - 3.11.6
               - 4.0.0
               type: string
@@ -6264,6 +6280,12 @@ rules:
   - '*'
   verbs:
   - '*'
+- apiGroups:
+  - batch
+  resources:
+  - '*'
+  verbs:
+  - '*'
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
@@ -6321,7 +6343,7 @@ spec:
           value: cass-operator
         - name: SKIP_VALIDATING_WEBHOOK
           value: "FALSE"
-        image: datastax/cass-operator:1.2.0
+        image: datastax/cass-operator:1.3.0
         imagePullPolicy: IfNotPresent
         livenessProbe:
           exec:
diff --git a/docs/user/cass-operator-manifests-v1.15.yaml b/docs/user/cass-operator-manifests-v1.15.yaml
index 30f85bee8..ca23a1836 100644
--- a/docs/user/cass-operator-manifests-v1.15.yaml
+++ b/docs/user/cass-operator-manifests-v1.15.yaml
@@ -56,6 +56,10 @@ spec:
         spec:
           description: CassandraDatacenterSpec defines the desired state of a CassandraDatacenter
           properties:
+            additionalSeeds:
+              items:
+                type: string
+              type: array
             allowMultipleNodesPerWorker:
               description: Turning this option on allows multiple server pods to be
                 created on a k8s worker node. By default the operator creates just
@@ -5891,6 +5895,17 @@ spec:
                 - name
                 type: object
               type: array
+            reaper:
+              properties:
+                enabled:
+                  type: boolean
+                image:
+                  type: string
+                imagePullPolicy:
+                  description: PullPolicy describes a policy for if/when to pull a
+                    container image
+                  type: string
+              type: object
             replaceNodes:
               description: A list of pod names that need to be replaced.
               items:
@@ -5940,6 +5955,7 @@ spec:
                 server configuration
               enum:
               - 6.8.0
+              - 6.8.1
               - 3.11.6
               - 4.0.0
               type: string
@@ -6265,6 +6281,12 @@ rules:
   - '*'
   verbs:
   - '*'
+- apiGroups:
+  - batch
+  resources:
+  - '*'
+  verbs:
+  - '*'
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
@@ -6322,7 +6344,7 @@ spec:
           value: cass-operator
         - name: SKIP_VALIDATING_WEBHOOK
           value: "FALSE"
-        image: datastax/cass-operator:1.2.0
+        image: datastax/cass-operator:1.3.0
         imagePullPolicy: IfNotPresent
         livenessProbe:
           exec:
diff --git a/docs/user/cass-operator-manifests-v1.16.yaml b/docs/user/cass-operator-manifests-v1.16.yaml
index de9498b6e..b70f25c8b 100644
--- a/docs/user/cass-operator-manifests-v1.16.yaml
+++ b/docs/user/cass-operator-manifests-v1.16.yaml
@@ -56,6 +56,10 @@ spec:
         spec:
           description: CassandraDatacenterSpec defines the desired state of a CassandraDatacenter
           properties:
+            additionalSeeds:
+              items:
+                type: string
+              type: array
             allowMultipleNodesPerWorker:
               description: Turning this option on allows multiple server pods to be
                 created on a k8s worker node. By default the operator creates just
@@ -5903,6 +5907,17 @@ spec:
                 - name
                 type: object
               type: array
+            reaper:
+              properties:
+                enabled:
+                  type: boolean
+                image:
+                  type: string
+                imagePullPolicy:
+                  description: PullPolicy describes a policy for if/when to pull a
+                    container image
+                  type: string
+              type: object
             replaceNodes:
               description: A list of pod names that need to be replaced.
               items:
@@ -5952,6 +5967,7 @@ spec:
                 server configuration
               enum:
               - 6.8.0
+              - 6.8.1
               - 3.11.6
               - 4.0.0
               type: string
@@ -6277,6 +6293,12 @@ rules:
   - '*'
   verbs:
   - '*'
+- apiGroups:
+  - batch
+  resources:
+  - '*'
+  verbs:
+  - '*'
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
@@ -6334,7 +6356,7 @@ spec:
           value: cass-operator
         - name: SKIP_VALIDATING_WEBHOOK
           value: "FALSE"
-        image: datastax/cass-operator:1.2.0
+        image: datastax/cass-operator:1.3.0
         imagePullPolicy: IfNotPresent
         livenessProbe:
           exec:
diff --git a/docs/user/cass-operator-manifests-v1.17.yaml b/docs/user/cass-operator-manifests-v1.17.yaml
index de9498b6e..b70f25c8b 100644
--- a/docs/user/cass-operator-manifests-v1.17.yaml
+++ b/docs/user/cass-operator-manifests-v1.17.yaml
@@ -56,6 +56,10 @@ spec:
         spec:
           description: CassandraDatacenterSpec defines the desired state of a CassandraDatacenter
           properties:
+            additionalSeeds:
+              items:
+                type: string
+              type: array
             allowMultipleNodesPerWorker:
               description: Turning this option on allows multiple server pods to be
                 created on a k8s worker node. By default the operator creates just
@@ -5903,6 +5907,17 @@ spec:
                 - name
                 type: object
               type: array
+            reaper:
+              properties:
+                enabled:
+                  type: boolean
+                image:
+                  type: string
+                imagePullPolicy:
+                  description: PullPolicy describes a policy for if/when to pull a
+                    container image
+                  type: string
+              type: object
             replaceNodes:
               description: A list of pod names that need to be replaced.
               items:
@@ -5952,6 +5967,7 @@ spec:
                 server configuration
               enum:
               - 6.8.0
+              - 6.8.1
               - 3.11.6
               - 4.0.0
               type: string
@@ -6277,6 +6293,12 @@ rules:
   - '*'
   verbs:
   - '*'
+- apiGroups:
+  - batch
+  resources:
+  - '*'
+  verbs:
+  - '*'
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
@@ -6334,7 +6356,7 @@ spec:
           value: cass-operator
         - name: SKIP_VALIDATING_WEBHOOK
           value: "FALSE"
-        image: datastax/cass-operator:1.2.0
+        image: datastax/cass-operator:1.3.0
         imagePullPolicy: IfNotPresent
         livenessProbe:
           exec:
diff --git a/docs/user/cass-operator-manifests-v1.18.yaml b/docs/user/cass-operator-manifests-v1.18.yaml
index 71d916a87..73cdbb452 100644
--- a/docs/user/cass-operator-manifests-v1.18.yaml
+++ b/docs/user/cass-operator-manifests-v1.18.yaml
@@ -56,6 +56,10 @@ spec:
         spec:
           description: CassandraDatacenterSpec defines the desired state of a CassandraDatacenter
           properties:
+            additionalSeeds:
+              items:
+                type: string
+              type: array
             allowMultipleNodesPerWorker:
               description: Turning this option on allows multiple server pods to be
                 created on a k8s worker node. By default the operator creates just
@@ -5901,6 +5905,17 @@ spec:
                 - name
                 type: object
               type: array
+            reaper:
+              properties:
+                enabled:
+                  type: boolean
+                image:
+                  type: string
+                imagePullPolicy:
+                  description: PullPolicy describes a policy for if/when to pull a
+                    container image
+                  type: string
+              type: object
             replaceNodes:
               description: A list of pod names that need to be replaced.
               items:
@@ -5950,6 +5965,7 @@ spec:
                 server configuration
               enum:
               - 6.8.0
+              - 6.8.1
               - 3.11.6
               - 4.0.0
               type: string
@@ -6275,6 +6291,12 @@ rules:
   - '*'
   verbs:
   - '*'
+- apiGroups:
+  - batch
+  resources:
+  - '*'
+  verbs:
+  - '*'
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
@@ -6332,7 +6354,7 @@ spec:
           value: cass-operator
         - name: SKIP_VALIDATING_WEBHOOK
           value: "FALSE"
-        image: datastax/cass-operator:1.2.0
+        image: datastax/cass-operator:1.3.0
         imagePullPolicy: IfNotPresent
         livenessProbe:
           exec: