Back to index

Download the installer for your operating system or run

oc adm release extract --tools registry.ci.openshift.org/ocp-arm64/release-arm64:4.21.0-0.nightly-arm64-2026-05-31-143131

Team Approvals:

No tests for this release

---

Loading changelog, this may take a while ...

Changes from 4.21.0-0.nightly-arm64-2026-05-28-211250

Created: 2026-05-31 14:32:59 +0000 UTC

Image Digest: sha256:7f99dfd334fa619d0792d66c5e4e86c6c87fc1b4407eabb6b99a8b8548f7e2c0

Components

• Kubectl 1.34.1
• Kubernetes 1.34.8
• Kubernetes Tests 1.34.1
• Red Hat Enterprise Linux CoreOS 10.2.20260521-0

  The CoreOS links above are for the base CoreOS layer used to build the OpenShift node image and do not contain OpenShift components. This is normally only useful to devs working closely with the CoreOS team. For info about the node image, see the Node Image Info section.

Rebuilt images without code change

• baremetal-installer git 3f855c5b sha256:5fd4168586e99df1c975ad67a71ca072205a14255fa20e62799f38cbcf1332a9
• cli git fdf8daba sha256:c58647f89fbccb4a7f9f51060ec7e7722406e84181d7c70ffc0978ac31714ede
• cli-artifacts git fdf8daba sha256:92d41d6879a7cd4e7e956b92c7a549656f690276bbb62e528d8ab2e6156f4abe
• deployer git fdf8daba sha256:8e4bad6259c8f29b59cacd592175934a5f865ff2686c52da8062310ed6331029
• driver-toolkit git f0ae9d12 sha256:b93e4ddaf1968b21fdb3081853f43443f7bc8ed80339dc1325262bb8c4c53687
• etcd git 806f690e sha256:af428f4c752e6cbaecc265e9e75720b7661bcaf0db9b76c7b4dc2d9be115b8b3
• hyperkube git eab2218b sha256:5b091b458eb6a4d87c4de9f558596e50fede0074e5e2bafb3788583ec29d233a
• installer git 3f855c5b sha256:c66f607cdf73ec4b590c9c0b070a9a48dfd57e84531d019984080faebfa88b05
• ironic git 6e93d7a0 sha256:a948a0a61737c1dcbbafbd87d2a62e8b5ccec6eb3c9b49d6462874928d121901
• ironic-machine-os-downloader git 707c2262 sha256:31448e9683a2ac78f1864fc4b3e6eb3b18b62e84ee80b1fe1f6de86d5482c18a
• machine-config-operator git 0422a1dc sha256:030461902446011331d35fb77e29f2fa2c2899d0001399153eaeeed588ae6d10
• machine-os-images git e9019e5f sha256:8f0fdbd9c462f718ddca0541403de9683674214c7ff5af539126790b13d291f4
• monitoring-plugin git 462c7889 sha256:60d3e90597479699b0e8243ed01d6b6a29a2a43856f838d41dfc48e7b2f27a6a
• must-gather git eeb267f4 sha256:47761f0088e75a47288799158a1d703e8b18005ec70aafe8e76415c5e830e8d5
• network-tools git d6717e45 sha256:f0e296722c4c7c89b760337cebb357e4fe53749811c854848d6d0f7fcff17246
• networking-console-plugin git 268037d7 sha256:3bf4057e5a29291c271bb2d16c9a72c976af6566ae702681808498e05986bc6a
• ovn-kubernetes git d586f851 sha256:66a0a71a79c532c7a5b7cb5b015557b433545c9b8b34a3f6f4369369a40eeb5b
• rhel-coreos git 10f1a2e7 sha256:5adc598ebb53665d6564a4369cff3baf7ecfbc6d5fff35dbbcea6655b6b7a711
• rhel-coreos-10 git 10f1a2e7 sha256:81e8b32818e1bcbb2086f2c3787e43df9cf56e7b28b215c63c5c698a3065452c
• rhel-coreos-10-extensions git 10f1a2e7 sha256:d95a5e685c0ff40102eb770731ba34376ecf5803f0514294c826453741445273
• rhel-coreos-extensions git 10f1a2e7 sha256:93d1ef6fcbd354242e2e76ac434d2ae01571d78ace1b21f0d004b01e21d753d0
• tests git c2da98a5 sha256:a0983bf95d8c9bd00a7e7e8e922bebeb6e894642612ac8dbc5ecb541e8ea9855
• tools git fdf8daba sha256:259f0f58d01cacb6d83622e0fd3fe62f980bcff2373399d4c69a5d9771c725af

cluster-etcd-operator

• OCPBUGS-84336: fix(tnf): gate dual-replica setup and keep retrying #1620
• Full changelog

cluster-ingress-operator

• OCPBUGS-86027: Fix logging for unmanaged controllers #1448
• Full changelog

console

• OCPBUGS-86427: Fix Shipwright detail pages crashing with React error #310 #16487
• Full changelog

---

Node Image Info

Loading node image info, this may take a while ...