engine: 29.4.0

content/manuals/engine/release-notes/29.md

@@ -22,6 +22,47 @@ For more information about:
 - Deprecated and removed features, see [Deprecated Engine Features](../deprecated.md).
 - Changes to the Engine API, see [Engine API version history](/reference/api/engine/version-history/).
 
+## 29.4.0
+
+{{< release-date date="2026-04-03" >}}
+
+For a full list of pull requests and changes in this release, refer to the relevant GitHub milestones:
+
+- [docker/cli, 29.4.0 milestone](https://github.com/docker/cli/issues?q=is%3Aclosed+milestone%3A29.4.0)
+- [moby/moby, 29.4.0 milestone](https://github.com/moby/moby/issues?q=is%3Aclosed+milestone%3A29.4.0)
+
+### Bug fixes and enhancements
+
+- docker cp: report both content size and transferred size. [docker/cli#6800](https://github.com/docker/cli/pull/6800)
+- Fix `docker stats --all` still showing containers that were removed. [docker/cli#6863](https://github.com/docker/cli/pull/6863)
+- Fix a rare bug that could cause containers to become unremovable. [moby/moby#51724](https://github.com/moby/moby/pull/51724)
+- Fixed privileged containers losing their explicit AppArmor profile (`--security-opt apparmor=<profile>`) after a container restart. [moby/moby#52215](https://github.com/moby/moby/pull/52215)
+- Improved duplicate container-exit handling by using live containerd task state (not timestamps). [moby/moby#52156](https://github.com/moby/moby/pull/52156)
+- Improved image pull and push performance by enabling HTTP keep-alive for registry connections, avoiding redundant TCP and TLS handshakes. [moby/moby#52198](https://github.com/moby/moby/pull/52198)
+- shell completions: add shell completion for `docker rm --link` and exclude legacy links for container names. [docker/cli#6872](https://github.com/docker/cli/pull/6872)
+- shell completions: don't provide completions that were already used. [docker/cli#6871](https://github.com/docker/cli/pull/6871)
+- Update runc (in static binaries) to [v1.3.5](https://github.com/opencontainers/runc/releases/tag/v1.3.5). [moby/moby#52244](https://github.com/moby/moby/pull/52244)
+- Windows: Fix `DOCKER_TMPDIR` not being respected. [moby/moby#52181](https://github.com/moby/moby/pull/52181)
+
+### Packaging updates
+
+- Update BuildKit to [v0.29.0](https://github.com/moby/buildkit/releases/tag/v0.29.0). [moby/moby#52272](https://github.com/moby/moby/pull/52272)
+
+### Networking
+
+- Prevent a daemon crash during startup after upgrading if a container config containers a malformed IP-address. [moby/moby#52275](https://github.com/moby/moby/pull/52275)
+
+### Go SDK
+
+- cli/streams: Out, In: preserve original os.File when available. [docker/cli#6906](https://github.com/docker/cli/pull/6906)
+- Update minimum go version to go1.25. [docker/cli#6897](https://github.com/docker/cli/pull/6897)
+
+### Deprecations
+
+- Go SDK: cli-plugins/hooks: deprecate `HookMessage ` and rename to `cli-plugins/hooks.Response`. [docker/cli#6859](https://github.com/docker/cli/pull/6859)
+- Go SDK: cli-plugins/hooks: deprecate `HookType` and rename to `cli-plugins/hooks.ResponseType`. [docker/cli#6859](https://github.com/docker/cli/pull/6859)
+- Go SDK: cli-plugins/manager: deprecate `HookPluginData` and move to `cli-plugins/hooks.Request`. [docker/cli#6859](https://github.com/docker/cli/pull/6859)
+
 ## 29.3.1
 
 {{< release-date date="2026-03-25" >}}