Prepare release notes for v2.3.0-rc.0#13302
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dmcgowan merged 3 commits intocontainerd:mainfrom Apr 28, 2026
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Signed-off-by: Derek McGowan <[email protected]>
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Pull request overview
Prepares the containerd v2.3.0-rc.0 release candidate by updating the in-tree version string, adding a release-tool template for generating notes, and updating release schedule/support documentation and contributor identity mappings.
Changes:
- Bump
version.Versiondefault from2.3.0-beta+unknownto2.3.0-rc+unknown. - Add
releases/v2.3.0-rc.tomlrelease-tool configuration for generating v2.3 RC release notes. - Update
RELEASES.mdto reflect the v2.3 release status/schedule and extend the Kubernetes support matrix; update.mailmapfor a contributor alias.
Reviewed changes
Copilot reviewed 3 out of 4 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| version/version.go | Updates the default version string for the RC cycle. |
| releases/v2.3.0-rc.toml | Adds release-tool template used to generate the v2.3.0 RC release notes. |
| RELEASES.md | Updates release status/dates and Kubernetes support matrix for v2.3. |
| .mailmap | Ensures contributor identity is deduplicated/standardized in generated release notes. |
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Signed-off-by: Derek McGowan <[email protected]>
Signed-off-by: Derek McGowan <[email protected]>
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Starts the rc process and schedules the final release for Wednesday.
containerd 2.3.0-rc.0
Welcome to the v2.3.0-rc.0 release of containerd!
This is a pre-release of containerd
The third minor release of containerd 2.x focuses on continued stability alongside
new features and improvements. This is the third time-based release for containerd.
Starting with containerd 2.3, the project has moved to release cadence aligned with
the Kubernetes release schedule, with new minor releases about every 4 months. The
containerd 2.3 release is also the first annual LTS (Long Term Stable) release under
this new schedule, with support planned for at least two years. Direct upgrades
between sequential LTS releases (e.g., 1.7 to 2.3) will be tested and supported.
This is a beta release and some functionality is still under development.
Highlights
Container Runtime Interface (CRI)
Image Distribution
Image Storage
Node Resource Interface (NRI)
Runtime
Snapshotters
Please try out the release binaries and report any issues at
https://github.com/containerd/containerd/issues.
Contributors
Dependency Changes
Previous release can be found at v2.2.0
Which file should I download?
containerd-<VERSION>-<OS>-<ARCH>.tar.gz: ✅Recommended. Dynamically linked with glibc 2.35 (Ubuntu 22.04).containerd-static-<VERSION>-<OS>-<ARCH>.tar.gz: Statically linked. Expected to be used on Linux distributions that do not use glibc >= 2.35. Not position-independent.In addition to containerd, typically you will have to install runc
and CNI plugins from their official sites too.
See also the Getting Started documentation.