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build: dockerfile 1.7 release notes 

Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>
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David Karlsson 2024-03-07 08:55:24 +01:00
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@ -10,6 +10,45 @@ issues, and bug fixes in [Dockerfile reference](../../reference/dockerfile.md).
For usage, see the [Dockerfile frontend syntax](frontend.md) page.
## 1.7.0
{{< release-date date="2024-03-06" >}}
### Stable
```dockerfile
# syntax=docker/dockerfile:1.7
```
- Variable expansion now allows string substitutions and trimming.
[moby/buildkit#4427](https://github.com/moby/buildkit/pull/4427),
[moby/buildkit#4287](https://github.com/moby/buildkit/pull/4287)
- Named contexts with local sources now correctly transfer only the files used in the Dockerfile instead of the full source directory.
[moby/buildkit#4161](https://github.com/moby/buildkit/pull/4161)
- Dockerfile now better validates the order of stages and returns nice errors with stack traces if stages are in incorrect order.
[moby/buildkit#4568](https://github.com/moby/buildkit/pull/4568),
[moby/buildkit#4567](https://github.com/moby/buildkit/pull/4567)
- History commit messages now contain flags used with `COPY` and `ADD`.
[moby/buildkit#4597](https://github.com/moby/buildkit/pull/4597)
- Progress messages for `ADD` commands from Git and HTTP sources have been improved.
[moby/buildkit#4408](https://github.com/moby/buildkit/pull/4408)
### Labs
```dockerfile
# syntax=docker/dockerfile:1.7-labs
```
- New `--parents` flag has been added to `COPY` for copying files while keeping the parent directory structure.
[moby/buildkit#4598](https://github.com/moby/buildkit/pull/4598),
[moby/buildkit#3001](https://github.com/moby/buildkit/pull/3001),
[moby/buildkit#4720](https://github.com/moby/buildkit/pull/4720),
[moby/buildkit#4728](https://github.com/moby/buildkit/pull/4728),
[docs](../../reference/dockerfile.md#copy---parents)
- New `--exclude` flag can be used in `COPY` and `ADD` commands to apply filter to copied files.
[moby/buildkit#4561](https://github.com/moby/buildkit/pull/4561),
[docs](../../reference/dockerfile.md#copy---exclude)
## 1.6.0
{{< release-date date="2023-06-13" >}}