- Fix the `overlay2` storage driver failing early in `metacopy` testing when initialized on an unsupported backing filesystem. [moby/moby#44922](https://github.com/moby/moby/pull/44922)
- Fix `exec` exit events being misinterpreted as container exits under some runtimes, such as Kata Containers. [moby/moby#44892](https://github.com/moby/moby/pull/44892)
- Improve the error message returned by the CLI when receiving a truncated JSON response caused by the API hanging up mid-request. [docker/cli#4004](https://github.com/docker/cli/pull/4004)
- Fix an incorrect CLI exit code when attempting to execute a directory with a `runc` compiled using Go 1.20. [docker/cli#4004](https://github.com/docker/cli/pull/4004)
- Fix mishandling the size argument to `--device-write-bps` as a path. [docker/cli#4004](https://github.com/docker/cli/pull/4004)

### Packaging

- Add `/etc/docker` to RPM and DEB packaging. [docker/docker-ce-packaging#842](https://github.com/docker/docker-ce-packaging/pull/842)
  - Not all use cases will benefit; if you depend on this, you should explicitly `mkdir -p /etc/docker`.
- Upgrade Compose to `v2.16.0`. [docker/docker-ce-packaging#844](https://github.com/docker/docker-ce-packaging/pull/844)

## 23.0.0

{{< release-date date="2023-02-01" >}}

For a full list of pull requests and changes in this release, refer to the relevant GitHub milestones:

- [docker/cli, 23.0.0 milestone](https://github.com/docker/cli/milestone/51?closed=1)
- [moby/moby, 23.0.0 milestone](https://github.com/moby/moby/milestone/91?closed=1)

### New

- Set Buildx and BuildKit as the default builder on Linux. [moby/moby#43992](https://github.com/moby/moby/pull/43992)
  - Alias `docker build` to `docker buildx build`. [docker/cli#3314](https://github.com/docker/cli/pull/3314)
  - The legacy builder can still be used by explicitly setting `DOCKER_BUILDKIT=0`.
  - There are differences in how BuildKit and the legacy builder handle multi-stage builds. For more information, see
    [Multi-stage builds](/manuals/build/building/multi-stage.md#differences-between-legacy-builder-and-buildkit).
- Add support for pulling `zstd` compressed layers. [moby/moby#41759](https://github.com/moby/moby/pull/41759), [moby/moby#42862](https://github.com/moby/moby/pull/42862)
- Add support for alternate OCI runtimes on Linux, compatible with the containerd runtime v2 API. [moby/moby#43887](https://github.com/moby/moby/pull/43887), [moby/moby#43993](https://github.com/moby/moby/pull/43993)
- Add support for the containerd `runhcs` shim on Windows (off by default). [moby/moby#42089](https://github.com/moby/moby/pull/42089)
- Add `dockerd --validate` to check the daemon JSON config and exit. [moby/moby#42393](https://github.com/moby/moby/pull/42393)
- Add the ability to configure the daemon's HTTP proxy via flags or JSON config. [moby/moby#42835](https://github.com/moby/moby/pull/42835)
- Add support for RFC 3021 point-to-point networks (IPv4 /31s) and single hosts (IPv4 /32s). For networks with two or fewer addresses, IPAM won't reserve a network and broadcast address. [moby/moby#42626](https://github.com/moby/moby/pull/42626)
- Add support for setting `ipvlan_flag` and using the `l3s` `ipvlan_mode` in the `ipvlan` network driver. [moby/moby#42542](https://github.com/moby/moby/pull/42542)
- Add support for displaying the value of the `metacopy` option for the `overlay2` storage driver. [moby/moby#43557](https://github.com/moby/moby/pull/43557)
- Add support for describing Windows devices using the syntax `IDType://ID`. [moby/moby#43368](https://github.com/moby/moby/pull/43368)
- Add `RootlessKit`, `slirp4netns`, and `VPNKit` version reporting. [moby/moby#42330](https://github.com/moby/moby/pull/42330)
- Add experimental support for SwarmKit cluster volumes (CSI). [moby/moby#41982](https://github.com/moby/moby/pull/41982)
  - CLI: Add cluster volume (CSI) options to `docker volume`. [docker/cli#3606](https://github.com/docker/cli/pull/3606)
  - CLI: Add cluster volume (CSI) support to `docker stack`. [docker/cli#3662](https://github.com/docker/cli/pull/3662)