4.21.0-202601282121.p0

To install MicroShift 4.21.0, follow the documentation: https://docs.redhat.com/en/documentation/red_hat_build_of_microshift/4.21

What's Changed

• [release-4.21] USHIFT-6361: Update scenario names for bootc standard1 and standard2 for releases by @openshift-cherrypick-robot in #6027
• [release-4.21] USHIFT-6383: Reenable the core dns test that is currently excluded by @openshift-cherrypick-robot in #6046
• [release-4.21] USHIFT-6441: Pin OS version when installing kernel-devel package by @openshift-cherrypick-robot in #6047
• NO-ISSUE: rebase-release-4.21-4.21.0-0.nightly-2026-01-08-052422_amd64-2026-01-08_arm64-2026-01-09 by @microshift-rebase-script[bot] in #6045
• [release-4.21] USHIFT-6362: Add iso deployment for rpmostree release scenarios by @kasturinarra in #6056
• [release-4.21] OCPBUGS-72568: Add rdma-core dependency to SR-IOV RPM by @openshift-cherrypick-robot in #6059
• NO-ISSUE: rebase-release-4.21-4.21.0-0.nightly-2026-01-08-052422_amd64-2026-01-08_arm64-2026-01-11 by @microshift-rebase-script[bot] in #6065
• NO-ISSUE: rebase-release-4.21-4.21.0-0.nightly-2026-01-08-052422_amd64-2026-01-08_arm64-2026-01-12 by @microshift-rebase-script[bot] in #6072
• [release-4.21] USHIFT-6423: Add release info images into the mirrored registry by @ggiguash in #6066
• [release-4.21] NO-ISSUE: Update openshift-tests-private commit by @pacevedom in #6068
• NO-ISSUE: rebase-release-4.21-4.21.0-0.nightly-2026-01-13-111112_amd64-2026-01-13_arm64-2026-01-13 by @microshift-rebase-script[bot] in #6076

Full Changelog: 4.21.0-rc.1-202601071524.p0...4.21.0-202601282121.p0