Docker Engine v27.5.0 Continued and v27.4 Release Notes

- Builder garbage collection policies without a `keepStorage` value now inherit the `defaultKeepStorage` limit as intended. [moby/moby#49137](https://github.com/moby/moby/pull/49137) - Preserve network labels during daemon startup. [moby/moby#49200](https://github.com/moby/moby/pull/49200) - Fix a potential race condition error when deleting a container. [moby/moby#49239](https://github.com/moby/moby/pull/49239) #### Go SDK - `pkg/sysinfo`: deprecate `NumCPU`. This utility has the same behavior as `runtime.NumCPU`. [moby/moby#49247](https://github.com/moby/moby/pull/49247) - `pkg/fileutils`: deprecate `GetTotalUsedFds`: this function is only used internally and will be removed in the next release. [moby/moby#49209](https://github.com/moby/moby/pull/49209) - `pkg/ioutils`: deprecate `BytesPipe`, `NewBytesPipe`, `ErrClosed`, `WriteCounter`, `NewWriteCounter`, `NewReaderErrWrapper`, `NopFlusher`, `NopWriter`, `NopWriteCloser`. They were only used internally and will be removed in the next release. [moby/moby#49246](https://github.com/moby/moby/pull/49246), [moby/moby#49255](https://github.com/moby/moby/pull/49255) - `pkg/reexec`: This package is deprecated and moved to a separate module. Use `github.com/moby/sys/reexec` instead. [moby/moby#49135](https://github.com/moby/moby/pull/49135) #### Packaging updates - Update containerd to [v1.7.25](https://github.com/containerd/containerd/releases/tag/v1.7.25) [moby/moby#49253](https://github.com/moby/moby/pull/49253) - Update `runc` to [v1.2.4](https://github.com/opencontainers/runc/releases/tag/v1.2.4) [moby/moby#49243](https://github.com/moby/moby/pull/49243) - Update BuildKit to [v0.18.2](https://github.com/moby/buildkit/releases/tag/v0.18.2) [moby/moby#48949](https://github.com/moby/moby/pull/48949) - Update Compose to [v2.32.2](https://github.com/docker/compose/releases/tag/v2.32.2) [docker/docker-ce-packaging#1140](https://github.com/docker/docker-ce-packaging/pull/1140) ## 27.4 Release notes for Docker Engine version 27.4 releases. ### 27.4.1 {{< release-date date="2024-12-18" >}} For a full list of pull requests and changes in this release, refer to the relevant GitHub milestones: - [docker/cli, 27.4.1 milestone](https://github.com/docker/cli/issues?q=is%3Aclosed+milestone%3A27.4.1) - [moby/moby, 27.4.1 milestone](https://github.com/moby/moby/issues?q=is%3Aclosed+milestone%3A27.4.1) #### Bug fixes and enhancements - Fix excessive memory allocations when OTel is not configured. [moby/moby#49079](https://github.com/moby/moby/pull/49079) - The `docker info` command and the corresponding `GET /info` API endpoint no longer include warnings when `bridge-nf-call-iptables` or `bridge-nf-call-ip6tables` are disabled at the daemon is started. The `br_netfilter` kernel module is now attempted to be loaded when needed, which made those warnings inaccurate. [moby/moby#49090](https://github.com/moby/moby/pull/49090) - Attempt to load kernel modules, including `ip6_tables` and `br_netfilter` when required, using a method that is likely to succeed inside a Docker-in-Docker container. [moby/moby#49043](https://github.com/moby/moby/pull/49043) - Fix a bug that could result in an iptables `DOCKER FILTER` chain not being cleaned up on failure. [moby/moby#49110](https://github.com/moby/moby/pull/49110) #### Packaging updates - Update Compose to [v2.32.1](https://github.com/docker/compose/releases/tag/v2.32.1). [docker/docker-ce-packaging#1130](https://github.com/docker/docker-ce-packaging/pull/1130) - Update Buildx to [v0.19.3](https://github.com/docker/buildx/releases/tag/v0.19.3). [docker/docker-ce-packaging#1132](https://github.com/docker/docker-ce-packaging/pull/1132) - Update runc (static binaries only) to [v1.2.3](https://github.com/opencontainers/runc/releases/tag/v1.2.3) [moby/moby#49085](https://github.com/moby/moby/pull/49085) ### 27.4.0 {{< release-date date="2024-12-09" >}} For a full list of pull requests and changes in this release, refer to the relevant GitHub milestones:

This excerpt details further updates from Docker Engine v27.5.0, including bug fixes, Go SDK deprecations, and packaging updates like containerd, runc, BuildKit, and Compose. It then transitions to the release notes for Docker Engine v27.4, specifically v27.4.1, highlighting bug fixes, enhancements, and packaging updates such as Compose, Buildx, and runc.