[dependabot]

Bumps github.com/containerd/containerd/v2 from 2.3.5 to 2.3.6.

Release notes

Sourced from github.com/containerd/containerd/v2's releases.

containerd 2.3.6

Welcome to the v2.3.6 release of containerd!

The sixth patch release for containerd 2.3 contains various fixes and updates including a security patch.

Security Updates

• containerd
  • CVE-2026-53493

Highlights

Container Runtime Interface (CRI)

• Fix bug where container creation failed when SELinux relabeling was unsupported by the filesystem (#14211)
• Enable mount manager for image mounts in CRI (#14147)

Image Storage

• Ensure all layers are fetched when multiple manifests in an index share a config descriptor (#14139)

Runtime

• Avoid unexpected mutation of mount options in mount helpers (#14192)
• Mask /proc/interrupts and CPU thermal throttle sysfs paths in Linux containers by default (#14144)

Please try out the release binaries and report any issues at https://github.com/containerd/containerd/issues.

Contributors

• Paweł Gronowski
• Samuel Karp
• Chris Henzie
• Maksym Pavlenko
• Wei Fu
• Gao Xiang
• Nan Liu

Changes

• 086fc0d40e Prepare release notes for v2.3.6
• 3e3b3daabc Merge commit from fork
• 03fbef37da Bound Walk references
• bfe167214b Bound Dispatch concurrency and references
• Fix input mutation in mount option helpers (#14192)
  • 5f17a29a9b core/mount: Keep lazy copy for filtered options

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Changelog

Sourced from github.com/containerd/containerd/v2's changelog.

Versioning and Release

This document details the versioning and release plan for containerd. Stability is a top goal for this project, and we hope that this document and the processes it entails will help to achieve that. It covers the release process, versioning numbering, backporting, API stability and support horizons.

If you rely on containerd, it would be good to spend time understanding the areas of the API that are and are not supported and how they impact your project in the future.

This document will be considered a living document. Supported timelines, backport targets and API stability guarantees will be updated here as they change.

If there is something that you require or this document leaves out, please reach out by filing an issue.

Releases

Releases of containerd will be versioned using dotted triples, similar to Semantic Version. For the purposes of this document, we will refer to the respective components of this triple as <major>.<minor>.<patch>. The version number may have additional information, such as alpha, beta and release candidate qualifications. Such releases will be considered "pre-releases".

Major and Minor Releases

Major and minor releases of containerd will be made from main. Releases of containerd will be marked with GPG signed tags and announced at https://github.com/containerd/containerd/releases. The tag will be of the format v<major>.<minor>.<patch> and should be made with the command git tag -s v<major>.<minor>.<patch>.

After a minor release, a branch will be created, with the format release/<major>.<minor> from the minor tag. All further patch releases will be done from that branch. For example, once we release v1.0.0, a branch release/1.0 will be created from that tag. All future patch releases will be done against that branch.

Release Cadence

Since containerd v2.3 in April 2026, minor releases are provided on a time basis with a cadence of 4 months. New minor releases are scheduled for April, August, and December of each year. This cadence is synchronized with the Kubernetes release schedule to ensure that new features in containerd can be smoothly adopted by new Kubernetes releases.

The maintainers will maintain a roadmap and milestones for each release, however,

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Commits

• ee27353 Merge pull request #14226 from samuelkarp/prepare-release-2.3.6
• 086fc0d Prepare release notes for v2.3.6
• 3e3b3da Merge commit from fork
• 92e6694 Merge pull request #14192 from vvoland/13433-release/2.3
• f7ae0f2 Merge pull request #14211 from k8s-infra-cherrypick-robot/cherry-pick-14207-t...
• 7fd198f cri: tolerate wrapped ENOTSUP during relabel
• 03fbef3 Bound Walk references
• bfe1672 Bound Dispatch concurrency and references
• 5f17a29 core/mount: Keep lazy copy for filtered options
• 4979657 core/mount: Return copied filtered mount options
• Additional commits viewable in compare view