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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <h1 style="margin: 10px 0 0 0; margin-top: 0; font-size: 24px; font-weight: normal; line-height: 1.250; margin: 40px 0 0 0; margin-top: 0"><a name="Responsetoqueryaboutminimumversion" style="color: #3b73af; text-decoration: none"></a>Response to query about minimum version</h1> <p style="margin: 10px 0 0 0">To answer your question:</p> <p style="margin: 10px 0 0 0">Yes. Operators written with Operator-SDK v0.5.0 can be deployed to a minimum Kubernetes cluster version of v1.11 and can therefore be used on OpenShift 3.11 and OpenShift 4.0.</p> <p style="margin: 10px 0 0 0">OpenShift 3.11 is on Kubernetes v1.11.<br> OpenShift 4.0 is on Kubernetes v1.12.</p> <p style="margin: 10px 0 0 0">The confusion you are experiencing is most likely due the link <span class="error">[2]</span> you mentioned which has the older Operator-SDK requirement of Kubernetes v1.9. We will get this corrected.</p> <p style="margin: 10px 0 0 0">Operator-SDK now takes advantage of CRD Subresources <span class="error">[3]</span> and they are enabled by default in Kubernetes v1.11 – this may be the primary reason for the v.11 requirement.</p> <p style="margin: 10px 0 0 0">Please let us know if you have any additional questions.</p> <p style="margin: 10px 0 0 0">Matt</p> <p style="margin: 10px 0 0 0"><span class="error">[1]</span> <a href="https://github.com/operator-framework/operator-sdk/blob/master/README.md" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://github.com/operator-framework/operator-sdk/blob/master/README.md</a><br> <span class="error">[2]</span> <a href="https://docs.okd.io/3.11/operators/osdk-getting-started.html" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://docs.okd.io/3.11/operators/osdk-getting-started.html</a><br> <span class="error">[3]</span> <a href="https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/#subresources" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/#subresources</a></p>
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