anchor.diff:  link:https://access.redhat.com/support/offerings/techpreview[Technology Preview
   Features Support Scope]
   
  -Starting in {product-title} 4.1, some _feature gates_, a set of key=value pairs
  -that describe Technology Preview features, will ship enabled. You can change the
  -default feature gates, but doing so prevents you from upgrading your cluster.
  -Any change to a feature gate stops an upgrade. Clusters with a changed feature
  -gate must be re-installed to apply even an asynchronous release update.
  -
   In the table below, features marked *TP* indicate _Technology Preview_ and
  -features marked *GA* indicate _General Availability_.
  -
  -If a feature is marked *yes;on*, that feature is controlled by a feature gate
  -that is enabled, or turned on, when shipped. If a feature is marked *yes;off*,
  -that feature is controlled by a feature gate that is disabled, or turned off,
  -when shipped.
  +￼	features marked *GA* indicate _General Availability_.
   
   .Technology Preview Tracker
   [cols="4",options="header"]
   |====
  -|Feature |Feature gate |OCP 3.11 |OCP 4.1
  +|Feature |OCP 3.11 |OCP 4.1
   
   |Prometheus Cluster Monitoring
  -|
   |GA
   |GA
   
   |Local Storage Persistent Volumes
  -|
   |TP
   |TP
   
   |CRI-O for runtime pods
  -|
   |GA* footnoteref:[disclaimer, Features marked with `*` indicate delivery in a z-stream patch.]
   |GA
   
   |Tenant Driven Snapshotting
  -|
   |TP
   |TP
   
   |`oc` CLI Plug-ins
  -|
   |TP
   |TP
   
   |Service Catalog
  -|
   |GA
   |GA
   
   |Template Service Broker
  -|
   |GA
   |GA
   
   |OpenShift Ansible Service Broker
  -|
   |GA
   |GA
   
   |Network Policy
  -|
   |GA
   |GA
   
   |Multus
  -|
   |-
   |GA
   
   |Service Catalog Initial Experience
  -|
   |GA
   |GA
   
   |New Add Project Flow
  -|
   |GA
   |GA
   
   |Search Catalog
  -|
   |GA
   |GA
   
   |Cron Jobs
  -|
   |GA
   |GA
   
   |Kubernetes Deployments
  -|
   |GA
   |GA
   
   |StatefulSets
  -|
   |GA
   |GA
   
   |Explicit Quota
  -|
   |GA
   |GA
   
   |Mount Options
  -|
   |GA
   |GA
   
   |System Containers for Docker, CRI-O
  -|
   |-
   |-
   
   |Hawkular Agent
  -|
   |-
   |-
   
   |Pod PreSets
  -|
   |-
   |-
   
   |experimental-qos-reserved
  -|
   |TP
   |TP
   
   |Pod sysctls
  -|
   |GA
   |GA. See xref:ocp-4-1-known-issues[Known issues] for current limitations.
   
   |Central Audit
  -|
   |GA
   |GA
   
   |Static IPs for External Project Traffic
  -|
   |GA
   |GA
   
   |Template Completion Detection
  -|
   |GA
   |GA
   
   |`replicaSet`
  -|
   |GA
   |GA
   
   |Fluentd Mux
  -|
   |TP
   |TP
   
   |Clustered MongoDB Template
  -|
   |-
   |-
   
   |Clustered MySQL Template
  -|
   |-
   |-
   
   |Image Streams with Kubernetes Resources
  -|
   |GA
   |GA
   
   |Device Manager
  -|
   |GA
   |GA
   
   |Persistent Volume Resize
  -|
   |GA
   |GA
   
   |Huge Pages
  -|
   |GA
   |GA
   
   |CPU Pinning
  -|
   |GA
   |GA
   
   |Admission Webhooks
  -|
   |TP
   |GA
   
   |External provisoner for AWS EFS
  -|
   |TP
   |TP
   
   |Pod Unidler
  -|
   |TP
   |TP
   
   |Node Problem Detector
  -|
   |TP
   |TP
   
   |Ephemeral Storage Limit/Requests
  -|
   |TP
   |TP
   
   |Descheduler
  -|
   |TP
   |TP
   
   |CephFS
  -|
   |TP
   |TP
   
   |Podman
  -|
   |TP
   |TP
   
   |Kuryr CNI Plug-in
  -|
   |TP
   |TP
   
   |Istio
  -|
   |TP
   |TP
   
   |Sharing Control of the PID Namespace
  -|
   |TP
   |TP
   
   |Manila Provisioner
  -|
   |TP
   |TP
   
   |Cluster Administrator console
  -|
   |GA
   |GA
   
   |Cluster Autoscaling (AWS Only)
  -|
   |GA
   |GA
   
   |Container Storage Interface (CSI)
  -|
   |TP
   |TP
   
   |Operator Lifecycle Manager
  -|
   |TP
   |GA
   
   |Red Hat OpenShift Service Mesh
  -|
   |TP
   |TP
   
   |"Fully Automatic" Egress IPs
  -|
   |GA
   |GA
   
   |Pod Priority and Preemption
  -|
   |GA
   |GA
   
   |Multi-stage builds in Dockerfiles
  -|
   |TP
   |GA
   
   |OVN
   |
  -|
   |TP
   
   |HPA custom metrics adapter based on Prometheus
   |
  -|
   |TP
   
   |Machine health checks
  -|
   |
   |TP
   |====
  
positive.code: mechanism.
  
  [id="ocp-4-1-technology-preview"]
  == Technology Preview features and feature gates
  
  Some features in this release are currently in Technology Preview. These
  experimental features are not intended for production use. Please note the
  
negative.code: xref:../updating/updating-cluster.adoc#updating-cluster[updating your cluster]
  properly.
  ====
  
  [[ocp-4-1]]
  === RHBA-2019:0758 - {product-title} 4.1 Image Release advisory
  
  Issued: 2019-06-04
  
  {product-title} release 4.1 is now available. The list of packages and bug fixes
  includes in the update are documented in the
  link:https://access.redhat.com/errata/RHBA-2019:1173[RHBA-2019:1173] advisory.
  The container images included in the update are provided by the
  link:https://access.redhat.com/errata/RHBA-2019:0758[RHBA-2019:0758] advisory.
  
  Space precluded documenting all of the container images for this release in the
  advisory. See the following sections for notes on the container images in this
  release.
  
  [[ocp-4-1-container-images]]
  ==== Container images
  
  * openshift3/redhat-openshift4-apb-base:v4.1.0-201905291302
  * openshift3/redhat-openshift4-apb-tools:v4.1.0-201905221405
  * openshift3/redhat-openshift4-mariadb-apb:v4.1.0-201905291302
  * openshift3/redhat-openshift4-mediawiki-apb:v4.1.0-201905291302
  * openshift3/redhat-openshift4-mediawiki:v4.1.0-201905221405
  * openshift3/redhat-openshift4-mysql-apb:v4.1.0-201905291302
  * openshift3/redhat-openshift4-ose-ansible-operator:v4.1.0-201905291302
  * openshift3/redhat-openshift4-ose-ansible-service-broker-operator:v4.1.0-201905291711
  * openshift3/redhat-openshift4-ose-ansible-service-broker:v4.1.0-201905221405
  * openshift3/redhat-openshift4-ose-aws-machine-controllers:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-azure-machine-controllers:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-baremetal-machine-controllers:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cli-artifacts:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cli:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cloud-credential-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-authentication-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-autoscaler-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-autoscaler:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-bootstrap:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-capacity:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-config-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-dns-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-image-registry-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-ingress-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-kube-apiserver-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-kube-controller-manager-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-kube-scheduler-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-logging-operator:v4.1.0-201905291736
  * openshift3/redhat-openshift4-ose-cluster-machine-approver:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-monitoring-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-network-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-node-tuned:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-node-tuning-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-openshift-apiserver-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-openshift-controller-manager-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-samples-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-storage-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-svcat-apiserver-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-svcat-controller-manager-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-cluster-update-keys:v4.1.0-201905311324
  * openshift3/redhat-openshift4-ose-cluster-version-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-configmap-reloader:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-console-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-console:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-container-networking-plugins-supported:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-container-networking-plugins-unsupported:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-coredns:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-deployer:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-descheduler-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-descheduler:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-docker-builder:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-docker-registry:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-egress-dns-proxy:v4.1.0-201905221405
  * openshift3/redhat-openshift4-ose-egress-http-proxy:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-egress-router:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-elasticsearch-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-etcd:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-grafana:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-haproxy-router-base:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-haproxy-router:v4.1.0-201905221405
  * openshift3/redhat-openshift4-ose-hyperkube:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-hypershift:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-installer-artifacts:v4.1.0-201905212232
  * openshift3/redhat-openshift4-ose-installer:v4.1.0-201905212232
  * openshift3/redhat-openshift4-ose-jenkins-agent-base:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-jenkins-agent-maven:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-jenkins-agent-nodejs:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-jenkins:v4.1.0-201905221405
  * openshift3/redhat-openshift4-ose-k8s-prometheus-adapter:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-keepalived-ipfailover:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-kube-client-agent:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-kube-etcd-signer-server:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-kube-proxy:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-kube-rbac-proxy:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-kube-state-metrics:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-libvirt-machine-controllers:v4.1.0-201905232339
  * openshift3/redhat-openshift4-ose-logging-curator5:v4.1.0-201905221523
  * openshift3/redhat-openshift4-ose-logging-elasticsearch5:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-logging-eventrouter:v4.1.0-201905221405
  * openshift3/redhat-openshift4-ose-logging-fluentd:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-logging-kibana5:v4.1.0-201905221405
  * openshift3/redhat-openshift4-ose-machine-api-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-machine-config-controller:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-machine-config-daemon:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-machine-config-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-machine-config-server:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-multus-admission-controller:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-multus-cni:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-must-gather:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-node:v4.1.0-201905221405
  * openshift3/redhat-openshift4-ose-oauth-proxy:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-openstack-machine-controllers:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-operator-lifecycle-manager:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-operator-marketplace:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-operator-registry:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-ovn-kubernetes:v4.1.0-201905231545
  * openshift3/redhat-openshift4-ose-pod:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-prom-label-proxy:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-prometheus-alertmanager:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-prometheus-config-reloader:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-prometheus-node-exporter:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-prometheus-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-prometheus:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-recycler:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-service-ca-operator:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-service-catalog:v4.1.0-201905221405
  * openshift3/redhat-openshift4-ose-setup-etcd-environment:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-sriov-cni:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-sriov-dp-admission-controller:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-sriov-network-device-plugin:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-telemeter:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-template-service-broker-operator:v4.1.0-201905291736
  * openshift3/redhat-openshift4-ose-template-service-broker:v4.1.0-201905191700
  * openshift3/redhat-openshift4-ose-tests:v4.1.0-201905191700
  * openshift3/redhat-openshift4-postgres-apb:v4.1.0-201905291302
  