4.21.16-202605180617.p0

To install MicroShift 4.21.16, follow the documentation: https://docs.redhat.com/en/documentation/red_hat_build_of_microshift/4.21

What's Changed

• NO-ISSUE: rebase-release-4.21-4.21.0-0.nightly-2026-04-19-143007_amd64-2026-04-19_arm64-2026-04-20 by @microshift-rebase-script[bot] in #6536
• [release-4.21] OCPBUGS-80721: bump google.golang.org/grpc to v1.79.3 by @pmtk in #6524
• NO-ISSUE: rebase-release-4.21-4.21.0-0.nightly-2026-04-21-005726_amd64-2026-04-21_arm64-2026-04-23 by @microshift-rebase-script[bot] in #6566
• NO-ISSUE: rebase-release-4.21-4.21.0-0.nightly-2026-04-21-005726_amd64-2026-04-21_arm64-2026-04-26 by @microshift-rebase-script[bot] in #6584
• NO-ISSUE: rebase-release-4.21-4.21.0-0.nightly-2026-04-21-005726_amd64-2026-04-21_arm64-2026-04-30 by @microshift-rebase-script[bot] in #6608
• NO-ISSUE: rebase-release-4.21-4.21.0-0.nightly-2026-05-03-094036_amd64-2026-05-03_arm64-2026-05-04 by @microshift-rebase-script[bot] in #6619
• NO-ISSUE: rebase-release-4.21-4.21.0-0.nightly-2026-05-06-025300_amd64-2026-05-06_arm64-2026-05-06 by @microshift-rebase-script[bot] in #6634
• NO-ISSUE: rebase-release-4.21-4.21.0-0.nightly-2026-05-10-152311_amd64-2026-05-10_arm64-2026-05-10 by @microshift-rebase-script[bot] in #6642
• [release-4.21] USHIFT-6970: MicroShift CI: openshift-tests-private build failure due to runc v1.4.2 missing libcontainer/cgroups by @agullon in #6655
• NO-ISSUE: rebase-release-4.21-4.21.0-0.nightly-2026-05-12-052734_amd64-2026-05-12_arm64-2026-05-14 by @microshift-rebase-script[bot] in #6672

Full Changelog: 4.21.11-202604201017.p0...4.21.16-202605180617.p0