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[OSDOCS#18853]: z-stream release notes for 4.20.17#109017

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[OSDOCS#18853]: z-stream release notes for 4.20.17#109017
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Version(s):
4.20

Issue:
https://redhat.atlassian.net/browse/OSDOCS-18853

Link to docs preview:

QE review:

  • QE has approved this change.

@openshift-ci openshift-ci bot added the size/M Denotes a PR that changes 30-99 lines, ignoring generated files. label Mar 25, 2026
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🤖 Wed Mar 25 18:43:04 - Prow CI generated the docs preview:

https://109017--ocpdocs-pr.netlify.app/openshift-enterprise/latest/release_notes/ocp-4-20-release-notes.html


* Before this update, volume expansion timed out when the requested size did not align to LVM extent boundaries (typically 4MB). As a consequence, the expansion succeeded at the LVM level, but the CSI driver waited indefinitely for the exact size match. With this release, the timeout issue is resolved. (link:https://issues.redhat.com/browse/OCPBUGS-51139[OCPBUGS-51139])

* Before this update, frequent updates in deployment and image overrides caused Ignition-server pods to frequently restart due to registry override issues in hypershift-operator. As a consequence, Ignition-server pod restarts caused service disruptions. With this release, the registry override issue in hypershift-operator is fixed. As a result, Ignition-server pod restarts is resolved, improving cluster stability. (link:https://issues.redhat.com/browse/OCPBUGS-65682[OCPBUGS-65682])
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🤖 [error] Vale.Terms: Use 'Operators?' instead of 'operator'.


* Before this update, volume expansion timed out when the requested size did not align to LVM extent boundaries (typically 4MB). As a consequence, the expansion succeeded at the LVM level, but the CSI driver waited indefinitely for the exact size match. With this release, the timeout issue is resolved. (link:https://issues.redhat.com/browse/OCPBUGS-51139[OCPBUGS-51139])

* Before this update, frequent updates in deployment and image overrides caused Ignition-server pods to frequently restart due to registry override issues in hypershift-operator. As a consequence, Ignition-server pod restarts caused service disruptions. With this release, the registry override issue in hypershift-operator is fixed. As a result, Ignition-server pod restarts is resolved, improving cluster stability. (link:https://issues.redhat.com/browse/OCPBUGS-65682[OCPBUGS-65682])
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🤖 [error] Vale.Terms: Use 'Operators?' instead of 'operator'.

[id="zstream-4-20-17-updating_{context}"]
== Updating

To update an {product-title} 4.20 cluster to this latest release, see xref:../updating/updating_a_cluster/updating-cluster-cli.adoc#updating-cluster-cli[Updating a cluster using the CLI].
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🤖 [error] OpenShiftAsciiDoc.NoXrefInModules: Do not include xrefs in modules, only assemblies (exception: release notes modules).

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