README.md in krane-2.1.2 vs README.md in krane-2.1.3

@@ -72,11 +72,11 @@
 
 
 ## Prerequisites
 
 * Ruby 2.5+
-* Your cluster must be running Kubernetes v1.11.0 or higher<sup>1</sup>
+* Your cluster must be running Kubernetes v1.15.0 or higher<sup>1</sup>
 
 <sup>1</sup> We run integration tests against these Kubernetes versions. You can find our
 official compatibility chart below.
 
 | Kubernetes version | Last officially supported in gem version |
@@ -88,11 +88,11 @@
 |        1.9         |        0.24.0         |
 |        1.10        |        0.27.0         |
 
 ## Installation
 
-1. [Install kubectl](https://kubernetes.io/docs/tasks/tools/install-kubectl/#install-kubectl-binary-via-curl) (requires v1.11.0 or higher) and make sure it is available in your $PATH
+1. [Install kubectl](https://kubernetes.io/docs/tasks/tools/install-kubectl/#install-kubectl-binary-via-curl) (requires v1.15.0 or higher) and make sure it is available in your $PATH
 2. Set up your [kubeconfig file](https://kubernetes.io/docs/tasks/access-application-cluster/authenticate-across-clusters-kubeconfig/) for access to your cluster(s).
 3. `gem install krane`
 
 
 
@@ -491,10 +491,10 @@
 
 
 
 ## Prerequisites
 
-* You've already deployed a [`PodTemplate`](https://v1-10.docs.kubernetes.io/docs/reference/generated/kubernetes-api/v1.11/#podtemplate-v1-core) object with field `template` containing a `Pod` specification that does not include the `apiVersion` or `kind` parameters. An example is provided in this repo in `test/fixtures/hello-cloud/template-runner.yml`.
+* You've already deployed a [`PodTemplate`](https://v1-15.docs.kubernetes.io/docs/reference/generated/kubernetes-api/v1.15/#podtemplate-v1-core) object with field `template` containing a `Pod` specification that does not include the `apiVersion` or `kind` parameters. An example is provided in this repo in `test/fixtures/hello-cloud/template-runner.yml`.
 * The `Pod` specification in that template has a container named `task-runner`.
 
 Based on this specification `krane run` will create a new pod with the entrypoint of the `task-runner ` container overridden with the supplied arguments.