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buildx 0.21.0 release notes #22059

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17 changes: 17 additions & 0 deletions content/manuals/build/release-notes.md
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This page contains information about the new features, improvements, and bug
fixes in [Docker Buildx](https://github.com/docker/buildx).

## 0.21.0

{{< release-date date="2025-02-19" >}}

The full release note for this release is available
[on GitHub](https://github.com/docker/buildx/releases/tag/v0.21.0).

### Enhancements

- `COPY --chmod` now allows non-octal values. This feature was previously in the labs channel and is now available in the main release. [docker/buildx#5734](https://github.com/docker/buildx/pull/5734)

### Bug fixes

- Fix handling of "os.version" platform property if one is set by the base image [docker/buildx#5714](https://github.com/docker/buildx/pull/5714)
- Fix errors where a named context metadata could be resolved even if it was not reachable by the current build configuration, leading to build error [docker/buildx#5688](https://github.com/docker/buildx/pull/5688)
- Fix silently ignoring `RUN --device` flag when not in labs channel [docker/buildx#5738](https://github.com/docker/buildx/pull/5738)
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@crazy-max crazy-max Feb 20, 2025

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Not sure where this changelog comes from but that's not Buildx related: https://github.com/docker/buildx/releases/tag/v0.21.0


## 0.20.1

{{< release-date date="2025-01-23" >}}
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