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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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2 changes: 0 additions & 2 deletions modules/zstream-4-20-16.adoc
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Expand Up @@ -23,8 +23,6 @@ $ oc adm release info 4.20.16 --pullspecs
[id="zstream-4-20-16-fixed-issues_{context}"]
== Fixed issues



* Before this update, the Machine API Provider OpenStack (MAPO) created an event for every single reconcile, even when no significant state changes such as creation, update, or deletion had occurred. This excessive event generation led to significant noise in event logs, created potential performance degradation, and often disrupted monitoring and alerting systems. With this release, the reconcile function has been modified to capture the original `ResourceVersion` value and only emit an event when the machine `ResourceVersion` value changes, indicating an actual modification. Additionally, the event name was changed from `Reconciled` to `Updated` to better align with other machine API providers. (link:https://issues.redhat.com/browse/OCPBUGS-69645[OCPBUGS-69645])

* Before this update, the metrics endpoint was inadvertently leaking specific system error messages to unauthorized users, providing a detailed look into internal application logic rather than a standard error code. With this release, a robust exception-handling layer that sanitizes all unhandled failures has been implemented, ensuring that any unauthorized or broken request does not return a generic `500 Internal Server Error` message. (link:https://issues.redhat.com/browse/OCPBUGS-75912[OCPBUGS-75912])
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34 changes: 34 additions & 0 deletions modules/zstream-4-20-17.adoc
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// Module included in the following assemblies:
//
// * release_notes/ocp-4-20-release-notes.adoc

:_mod-docs-content-type: REFERENCE
[id="zstream-4-20-17_{context}"]
= RHSA-2026:5142 - {product-title} {product-version}.17 fixed issues

Issued: 25 March 2026

[role="_abstract"]
{product-title} release {product-version}.17 is now available. The list of fixed issues that are included in the update is documented in the link:https://access.redhat.com/errata/RHSA-2026:5142[RHSA-2026:5142] advisory. The RPM packages that are included in the update are provided by the link:https://access.redhat.com/errata/RHBA-2026:5140[RHBA-2026:5140] advisory.

Space precluded documenting all of the container images for this release in the advisory.

You can view the container images in this release by running the following command:

[source,terminal]
----
$ oc adm release info 4.20.17 --pullspecs
----

[id="zstream-4-20-17-fixed-issues_{context}"]
== Fixed issues

* 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'.

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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).

7 changes: 6 additions & 1 deletion release_notes/ocp-4-20-release-notes.adoc
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Expand Up @@ -3019,10 +3019,15 @@ In both cases, the installation program generates a user-assigned identity. (lin

include::modules/rn-async-errata.adoc[leveloffset=+1]

// 4.20.17 release notes
include::modules/zstream-4-20-17.adoc[leveloffset=+2]

// 4.20.16 release notes
include::modules/zstream-4-20-16.adoc[leveloffset=+2]

// 4.20.15 release notes
include::modules/zstream-4-20-15.adoc[leveloffset=+2]


// 4.20.14 release notes
include::modules/zstream-4-20-14.adoc[leveloffset=+2]

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