- [Deprecation notice](../deprecated.md#backing-filesystem-without-d_type-support-for-overlayoverlay2)
- Remove the deprecated `overrideKernelCheck` option from the `overlay2` storage driver. [moby/moby#44279](https://github.com/moby/moby/pull/44279)
[Deprecation notice](../deprecated.md#support-for-the-overlay2override_kernel_check-storage-option)
- Remove support for the deprecated `io.containerd.runtime.v1.linux` OCI runtime. [moby/moby#43695](https://github.com/moby/moby/pull/43695)
- Remove LCOW (Linux Containers on Windows). [moby/moby#42451](https://github.com/moby/moby/pull/42451), [moby/moby#42499](https://github.com/moby/moby/pull/42499), [moby/moby#42506](https://github.com/moby/moby/pull/42506), [moby/moby#42511](https://github.com/moby/moby/pull/42511), [moby/moby#42520](https://github.com/moby/moby/pull/42520), [moby/moby#42683](https://github.com/moby/moby/pull/42683), [moby/moby#42684](https://github.com/moby/moby/pull/42684), [moby/moby#42685](https://github.com/moby/moby/pull/42685), [moby/moby#43187](https://github.com/moby/moby/pull/43187)
- LCOW was introduced as a technical preview in 17.09 and deprecated in 20.10.
- [Deprecation notice](../deprecated.md#linux-containers-on-windows-lcow-experimental)
- Remove daemon options related to legacy overlay networks used with standalone Swarm.
- Remove `--cluster-xx` options from `dockerd`. [moby/moby#40383](https://github.com/moby/moby/issues/40383)
- Remove `host-discovery` and overlay networks with external k/v stores. [moby/moby#42247](https://github.com/moby/moby/pull/42247)
- [Deprecation notice](../deprecated.md#classic-swarm-and-overlay-networks-using-cluster-store)
- Remove a deprecated `arm` platform fallback. `--platform linux/arm/vY` will now return a error when `arm/vY` isn't available instead of pulling the wrong image. [moby/moby#44414](https://github.com/moby/moby/pull/44414)
- Remove the deprecated `SetCustomHTTPHeaders()`, `CustomHTTPHeaders()` options-setters from the Go client API. [moby/moby#42694](https://github.com/moby/moby/pull/42694)
- Remove the deprecated `WithDialer()` option-setter from the Go client API. [moby/moby#44022](https://github.com/moby/moby/pull/44022)
- Use `WithDialContext()` instead.
- Remove the daemon implementation of `opts.QuotedString`. The implementation has moved to the CLI. [moby/moby#43250](https://github.com/moby/moby/pull/43250)
- Remove separate daemon ID from trust-key in the daemon, and disable generating the trust-key. [moby/moby#43555](https://github.com/moby/moby/pull/43555)
- API: Remove the deprecated `KernelMemory` option from `POST /containers/create` on API version >= 1.42. [moby/moby#43214](https://github.com/moby/moby/pull/43214)
- [Deprecation notice](../deprecated.md#kernel-memory-limit)
### Deprecated
- Require Windows Server RS5 / LTSC 2019 (build 17763) as the minimum to run the daemon. [moby/moby#43254](https://github.com/moby/moby/pull/43254)
- Deprecate `BuilderSize` on API version >= 1.42. [moby/moby#42608](https://github.com/moby/moby/pull/42608)
- Deprecate `BuildCache.Parent` in favor of the newly introduced `BuildCache.Parents` on API version >= 1.42. [moby/moby#43908](https://github.com/moby/moby/pull/43908)
- Deprecate `pkg/urlutil`, moving the implementation to `builder/remotecontext/urlutil`. [moby/moby#43477](https://github.com/moby/moby/pull/43477)
### Upgrades
- Upgrade Go to `1.19.5`. [docker/cli#3958](https://github.com/docker/cli/pull/3958), [moby/moby#44794](https://github.com/moby/moby/pull/44794)
- Upgrade `rootlesskit` to `v0.14.4`. [moby/moby#42708](https://github.com/moby/moby/pull/42708)
- Upgrade `buildkit` to `v0.10.6`. [moby/moby#43239](https://github.com/moby/moby/pull/43239)
- Upgrade `buildx` to `v0.10.2`. [docker/docker-ce-packaging#840](https://github.com/docker/docker-ce-packaging/pull/840)
- Upgrade `swarmkit` to `v2.0.0-20230119195359-904c221ac281`. [moby/moby#44858](https://github.com/moby/moby/pull/44858)
- Upgrade `containerd` to `v1.6.16`. [moby/moby#44766](https://github.com/moby/moby/pull/44766), [moby/moby#44769](https://github.com/moby/moby/pull/44769), [moby/moby#44881](https://github.com/moby/moby/pull/44881)