diff --git a/install/Knative-custom-install.md b/install/Knative-custom-install.md
index c31318094..9d89c908e 100644
--- a/install/Knative-custom-install.md
+++ b/install/Knative-custom-install.md
@@ -256,6 +256,15 @@ for details about installing the various supported observability plug-ins.
 **Tip**: From the table above, copy and paste the URL and filename into the
 commands below.
 
+1. If you are upgrading from Knative 0.3.x: Update your domain and static IP
+   address to be associated with the LoadBalancer `istio-ingressgateway` instead
+   of `knative-ingressgateway`.  Then run the following to clean up leftover
+   resources:
+   ```
+   kubectl delete svc knative-ingressgateway -n istio-system
+   kubectl delete deploy knative-ingressgateway -n istio-system
+   ```
+
 1. To install Knative components or plugins, specify the filenames in the
    `kubectl apply` command:
 
diff --git a/install/Knative-with-AKS.md b/install/Knative-with-AKS.md
index 26146f70c..15e03fe74 100644
--- a/install/Knative-with-AKS.md
+++ b/install/Knative-with-AKS.md
@@ -168,6 +168,15 @@ The following commands install all available Knative components. To customize
 your Knative installation, see
 [Performing a Custom Knative Installation](Knative-custom-install.md).
 
+1. If you are upgrading from Knative 0.3.x: Update your domain and static IP
+   address to be associated with the LoadBalancer `istio-ingressgateway` instead
+   of `knative-ingressgateway`.  Then run the following to clean up leftover
+   resources:
+   ```
+   kubectl delete svc knative-ingressgateway -n istio-system
+   kubectl delete deploy knative-ingressgateway -n istio-system
+   ```
+
 1. Run the `kubectl apply` command to install Knative and its dependencies:
    ```bash
    kubectl apply --filename https://github.com/knative/serving/releases/download/v0.3.0/serving.yaml \
diff --git a/install/Knative-with-GKE.md b/install/Knative-with-GKE.md
index 52e1e55a2..154baef1d 100644
--- a/install/Knative-with-GKE.md
+++ b/install/Knative-with-GKE.md
@@ -169,6 +169,15 @@ The following commands install all available Knative components as well as the
 standard set of observability plugins. To customize your Knative installation,
 see [Performing a Custom Knative Installation](Knative-custom-install.md).
 
+1. If you are upgrading from Knative 0.3.x: Update your domain and static IP
+   address to be associated with the LoadBalancer `istio-ingressgateway` instead
+   of `knative-ingressgateway`.  Then run the following to clean up leftover
+   resources:
+   ```
+   kubectl delete svc knative-ingressgateway -n istio-system
+   kubectl delete deploy knative-ingressgateway -n istio-system
+   ```
+
 1. Run the `kubectl apply` command to install Knative and its dependencies:
    ```bash
    kubectl apply --filename https://github.com/knative/serving/releases/download/v0.3.0/serving.yaml \
diff --git a/install/Knative-with-Gardener.md b/install/Knative-with-Gardener.md
index 3c84625a4..18c733ccb 100644
--- a/install/Knative-with-Gardener.md
+++ b/install/Knative-with-Gardener.md
@@ -101,6 +101,15 @@ The following commands install all available Knative components as well as the
 standard set of observability plugins. To customize your Knative installation,
 see [Performing a Custom Knative Installation](Knative-custom-install.md).
 
+1. If you are upgrading from Knative 0.3.x: Update your domain and static IP
+   address to be associated with the LoadBalancer `istio-ingressgateway` instead
+   of `knative-ingressgateway`.  Then run the following to clean up leftover
+   resources:
+   ```
+   kubectl delete svc knative-ingressgateway -n istio-system
+   kubectl delete deploy knative-ingressgateway -n istio-system
+   ```
+
 1. Run the `kubectl apply` command to install Knative and its dependencies:
    ```bash
    kubectl apply --filename https://github.com/knative/serving/releases/download/v0.3.0/serving.yaml \
diff --git a/install/Knative-with-ICP.md b/install/Knative-with-ICP.md
index e50e5fefd..4ace73bd0 100644
--- a/install/Knative-with-ICP.md
+++ b/install/Knative-with-ICP.md
@@ -126,6 +126,15 @@ The following commands install all available Knative components as well as the
 standard set of observability plugins. To customize your Knative installation,
 see [Performing a Custom Knative Installation](Knative-custom-install.md).
 
+1. If you are upgrading from Knative 0.3.x: Update your domain and static IP
+   address to be associated with the LoadBalancer `istio-ingressgateway` instead
+   of `knative-ingressgateway`.  Then run the following to clean up leftover
+   resources:
+   ```
+   kubectl delete svc knative-ingressgateway -n istio-system
+   kubectl delete deploy knative-ingressgateway -n istio-system
+   ```
+
 1. Run the following commands to install Knative:
 
    ```shell
diff --git a/install/Knative-with-IKS.md b/install/Knative-with-IKS.md
index 411a900c2..b84f1b56f 100644
--- a/install/Knative-with-IKS.md
+++ b/install/Knative-with-IKS.md
@@ -3,7 +3,7 @@
 This guide walks you through the installation of the latest version of Knative
 using pre-built images.
 
-You may also have it all installed for you by clicking the button below:  
+You may also have it all installed for you by clicking the button below:
 [![Deploy to IBM Cloud](https://bluemix.net/deploy/button_x2.png)](https://console.bluemix.net/devops/setup/deploy?repository=https://git.ng.bluemix.net/start-with-knative/toolchain.git)
 
 More
@@ -165,6 +165,15 @@ The following commands install all available Knative components as well as the
 standard set of observability plugins. To customize your Knative installation,
 see [Performing a Custom Knative Installation](Knative-custom-install.md).
 
+1. If you are upgrading from Knative 0.3.x: Update your domain and static IP
+   address to be associated with the LoadBalancer `istio-ingressgateway` instead
+   of `knative-ingressgateway`.  Then run the following to clean up leftover
+   resources:
+   ```
+   kubectl delete svc knative-ingressgateway -n istio-system
+   kubectl delete deploy knative-ingressgateway -n istio-system
+   ```
+
 1. Run the `kubectl apply` command to install Knative and its dependencies:
    ```bash
    kubectl apply --filename https://github.com/knative/serving/releases/download/v0.3.0/serving.yaml \
diff --git a/install/Knative-with-Minikube.md b/install/Knative-with-Minikube.md
index 521009c10..21b8e0b29 100644
--- a/install/Knative-with-Minikube.md
+++ b/install/Knative-with-Minikube.md
@@ -91,6 +91,16 @@ Because you have limited resources available, install only the Knative Serving
 component, omitting the other Knative components as well as the observability
 and monitoring plugins.
 
+If you are upgrading from Knative 0.3.x: Update your domain and static IP
+address to be associated with the LoadBalancer `istio-ingressgateway` instead
+of `knative-ingressgateway`.  Then run the following to clean up leftover
+resources:
+
+```shell
+kubectl delete svc knative-ingressgateway -n istio-system
+kubectl delete deploy knative-ingressgateway -n istio-system
+```
+
 Enter the following command:
 
 ```shell
diff --git a/install/Knative-with-Minishift.md b/install/Knative-with-Minishift.md
index 09d69df77..93a3c91d4 100644
--- a/install/Knative-with-Minishift.md
+++ b/install/Knative-with-Minishift.md
@@ -200,6 +200,15 @@ curl -s https://raw.githubusercontent.com/knative/docs/master/install/scripts/kn
 - Warning: ServiceAccount 'controller' not found cluster role "cluster-admin"
   added: "controller"
 
+1. If you are upgrading from Knative 0.3.x: Update your domain and static IP
+   address to be associated with the LoadBalancer `istio-ingressgateway` instead
+   of `knative-ingressgateway`.  Then run the following to clean up leftover
+   resources:
+   ```
+   oc delete svc knative-ingressgateway -n istio-system
+   oc delete deploy knative-ingressgateway -n istio-system
+   ```
+
 1. Install Knative serving:
 
    ```shell
@@ -207,7 +216,7 @@ curl -s https://raw.githubusercontent.com/knative/docs/master/install/scripts/kn
    oc apply -f https://github.com/knative/build/releases/download/v0.3.0/release.yaml
    ```
 
-2. Monitor the Knative components until all of the components show a `STATUS` of
+1. Monitor the Knative components until all of the components show a `STATUS` of
    `Running` or `Completed`:
 
    ```shell
@@ -221,7 +230,7 @@ curl -s https://raw.githubusercontent.com/knative/docs/master/install/scripts/kn
    > **NOTE:** It will take a few minutes for all the components to be up and
    > running.
 
-3. Set route to access the OpenShift ingress CIDR, so that services can be
+1. Set route to access the OpenShift ingress CIDR, so that services can be
    accessed via LoadBalancerIP
    ```shell
    # Only for macOS
diff --git a/install/Knative-with-PKS.md b/install/Knative-with-PKS.md
index 6c65f8e7b..dfbf8f28a 100644
--- a/install/Knative-with-PKS.md
+++ b/install/Knative-with-PKS.md
@@ -78,6 +78,15 @@ The following commands install all available Knative components as well as the
 standard set of observability plugins. To customize your Knative installation,
 see [Performing a Custom Knative Installation](Knative-custom-install.md).
 
+1. If you are upgrading from Knative 0.3.x: Update your domain and static IP
+   address to be associated with the LoadBalancer `istio-ingressgateway` instead
+   of `knative-ingressgateway`.  Then run the following to clean up leftover
+   resources:
+   ```
+   kubectl delete svc knative-ingressgateway -n istio-system
+   kubectl delete deploy knative-ingressgateway -n istio-system
+   ```
+
 1. Run the `kubectl apply` command to install Knative and its dependencies:
    ```bash
    kubectl apply --filename https://github.com/knative/serving/releases/download/v0.3.0/serving.yaml \
diff --git a/install/Knative-with-any-k8s.md b/install/Knative-with-any-k8s.md
index a4ad1ea75..eeecd21af 100644
--- a/install/Knative-with-any-k8s.md
+++ b/install/Knative-with-any-k8s.md
@@ -54,6 +54,15 @@ The following commands install all available Knative components. To customize
 your Knative installation, see
 [Performing a Custom Knative Installation](Knative-custom-install.md).
 
+1. If you are upgrading from Knative 0.3.x: Update your domain and static IP
+   address to be associated with the LoadBalancer `istio-ingressgateway` instead
+   of `knative-ingressgateway`.  Then run the following to clean up leftover
+   resources:
+   ```
+   kubectl delete svc knative-ingressgateway -n istio-system
+   kubectl delete deploy knative-ingressgateway -n istio-system
+   ```
+
 1. Run the `kubectl apply` command to install Knative and its dependencies:
    ```bash
    kubectl apply --filename https://github.com/knative/serving/releases/download/v0.3.0/serving.yaml \