AI-analyzed release notes for CNCF graduated and incubating projects.
A maintenance release with CRI and image-distribution fixes. The CRI constraint on CreateContainer requests may require action, while the other fixes take effect through the upgrade.
Action needed (1)
breakingCreateContainer rejection for stopped sandboxes
The CRI now rejects CreateContainer requests when the sandbox is not running. This constraint ships in containerd v2.2.6.
A maintenance release with disclosed security fixes, dependency and toolchain updates, and changes to checkpoint and image-processing behavior. User-database reads are bounded in openUserFile, which may reject inputs that previously worked.
Action needed (2)
securitycriticalSecurity fixes for five disclosed CVEs
The release includes fixes for CVE-2026-50195, CVE-2026-53488, CVE-2026-53492, CVE-2026-53489, and CVE-2026-47262, along with the associated GHSA-33vj-92qq-66hc, GHSA-cvxm-645q-p574, GHSA-jpcc-p29g-p8mq, GHSA-rgh6-rfwx-v388, and GHSA-xhf5-7wjv-pqxp advisories.
breakingBounded openUserFile user-database reads
User-database file reads in openUserFile are now bounded, so inputs that previously worked may be rejected.
A substantial operator-facing release with new capabilities, behavior changes, a compatibility constraint, and a deprecation. It is the first annual LTS release under a Kubernetes-aligned cadence, with support planned for at least two years.
Action needed (1)
breakingPlugin names disallow commas
OCI hook adjustments accumulate owners, and commas are disallowed in plugin names in this release.
Plan ahead (1)
deprecatedThe shim. API, deprecated
Applies if you use shim..
shim. is deprecated in containerd 2.3.
