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OSDOCS-19804:Update the z-stream RNs for 4.21.16#111681

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OSDOCS-19804:Update the z-stream RNs for 4.21.16#111681
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@openshift-ci-robot openshift-ci-robot added the jira/valid-reference Indicates that this PR references a valid Jira ticket of any type. label May 14, 2026
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openshift-ci-robot commented May 14, 2026

@tedaveryredhat: This pull request references OSDOCS-19804 which is a valid jira issue.

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Version(s):
4.21

Issue:
https://redhat.atlassian.net/browse/OSDOCS-19804

Link to docs preview:

Additional information:
4.21.16 MR: https://gitlab.cee.redhat.com/hybrid-platforms/art/ocp-shipment-data/-/merge_requests/533
ART Dashboard: https://art-dash.engineering.redhat.com/dashboard/release/openshift-4.21

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@openshift-ci openshift-ci Bot added the size/M Denotes a PR that changes 30-99 lines, ignoring generated files. label May 14, 2026
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ocpdocs-previewbot commented May 14, 2026

🤖 Fri May 15 15:23:30 - Prow CI generated the docs preview:

https://111681--ocpdocs-pr.netlify.app/openshift-enterprise/latest/release_notes/ocp-4-21-release-notes.html

Comment thread modules/zstream-4-21-16.adoc Outdated
[id="zstream-4-21-16-fixed-issues_{context}"]
== Fixed issues

* Before this update, when going into holdover a new dataset was defined for `ts2phc` as it started reporting offsets, which did not meet the minimum number of samples. As a consequence, the PTP Operator incorrectly reported a `FREERUN` clock state immediately. With this update, when going into holdover the offset is calculated based on the slope defined by the holdover thresholds. As a result, the offset steadily increases until it goes over the threshold. The clock state correctly transitions from `HOLDOVER` to `HOLDOVER OUT-OF-SPEC` and finally to `FREERUN`. (link:https://issues.redhat.com/browse/OCPBUGS-77473[OCPBUGS-77473])
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🤖 [error] RedHat.TermsErrors: Use 'data set' rather than 'dataset'. For more information, see RedHat.TermsErrors.

Comment thread modules/zstream-4-21-16.adoc Outdated

* Before this update, a race condition in the container stop path caused panic during the second `StopContainer` call after the first call had been completed. As a consequence, a panic in the container stop path occurred during the race condition. With this release, a `stopDone `guard is added to the `WaitOnStopTimeout` parameter to fix the race condition. As a result, the container stop operation is more resilient, which reduces the likelihood of panics during concurrent `StopContainer` calls. (link:https://redhat.atlassian.net/browse/OCPBUGS-84922[OCPBUGS-84922])

* Before this update, pagination controls were not present at mobile resolutions because PatternFly expected both top and bottom pagination controls to be used. With this release, pagination controls are present regardless of the mobile resolution. (link:https://redhat.atlassian.net/browse/OCPBUGS-84967[OCPBUGS-84967])
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🤖 [error] RedHat.Spacing: Keep one space between words in 'used. With'. For more information, see RedHat.Spacing.

[id="zstream-4-21-16-updating_{context}"]
== Updating

To update an {product-title} 4.21 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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openshift-ci Bot commented May 15, 2026

@tedaveryredhat: all tests passed!

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