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29th chunk of `content/manuals/build/release-notes.md`
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For more details, see the complete release notes in the [Buildx GitHub repository](https://github.com/docker/buildx/releases/tag/v0.4.1).

## 0.4.0

{{< release-date date="2020-04-30" >}}

### New features

- Add `kubernetes` driver. [docker/buildx#167](https://github.com/docker/buildx/issues/167)
- New global `--builder` flag to override builder instance for a single command. [docker/buildx#246](https://github.com/docker/buildx/issues/246)
- New `prune` and `du` commands for managing local builder cache. [docker/buildx#249](https://github.com/docker/buildx/issues/249)
- You can now set the new `pull` and `no-cache` options for HCL targets. [docker/buildx#165](https://github.com/docker/buildx/issues/165)

### Enhancements

- Upgrade Bake to HCL2 with support for variables and functions. [docker/buildx#192](https://github.com/docker/buildx/issues/192)
- Bake now supports `--load` and `--push`. [docker/buildx#164](https://github.com/docker/buildx/issues/164)
- Bake now supports wildcard overrides for multiple targets. [docker/buildx#164](https://github.com/docker/buildx/issues/164)
- Container driver allows setting environment variables via `driver-opt`. [docker/buildx#170](https://github.com/docker/buildx/issues/170)

For more details, see the complete release notes in the [Buildx GitHub repository](https://github.com/docker/buildx/releases/tag/v0.4.0).

## 0.3.1

{{< release-date date="2019-09-27" >}}

### Enhancements

- Handle copying unix sockets instead of erroring. [docker/buildx#155](https://github.com/docker/buildx/issues/155)
  [moby/buildkit#1144](https://github.com/moby/buildkit/issues/1144)

### Fixes

- Running Bake with multiple Compose files now merges targets correctly. [docker/buildx#134](https://github.com/docker/buildx/issues/134)
- Fix bug when building a Dockerfile from stdin (`build -f -`).
  [docker/buildx#153](https://github.com/docker/buildx/issues/153)

For more details, see the complete release notes in the [Buildx GitHub repository](https://github.com/docker/buildx/releases/tag/v0.3.1).

## 0.3.0

{{< release-date date="2019-08-02" >}}

### New features

- Custom `buildkitd` daemon flags. [docker/buildx#102](https://github.com/docker/buildx/issues/102)
Title: Docker Buildx Release Notes: v0.4.0, v0.3.1, and v0.3.0
Summary
This document summarizes the release notes for Docker Buildx versions 0.4.0, 0.3.1, and 0.3.0. Version 0.4.0 introduces the `kubernetes` driver, a global `--builder` flag, `prune` and `du` commands, `pull` and `no-cache` options for HCL targets, upgrades Bake to HCL2, and supports `--load` and `--push` along with wildcard overrides for multiple targets in Bake. It also allows setting environment variables via `driver-opt`. Version 0.3.1 enhances handling of Unix sockets and fixes bugs related to Bake with multiple Compose files and building from stdin. Version 0.3.0 introduces custom `buildkitd` daemon flags.