Features
- Added more robust validation for unknown fields passed via REST API requests.
[475](https://github.com/pulp/pulp_container/issues/475)
- Added validation for signatures' payloads.
[512](https://github.com/pulp/pulp_container/issues/512)
- Log messages are now not being translated.
[690](https://github.com/pulp/pulp_container/issues/690)
Bugfixes
- Fixed url of the registry root endpoint during signature source check.
[646](https://github.com/pulp/pulp_container/issues/646)
- Fixed sync of signed content failing with the error [DeclarativeContent' object has no attribute 'd_content']{.title-ref}.
[654](https://github.com/pulp/pulp_container/issues/654)
- Fixed group related creation hooks that failed if no current user could be identified.
[673](https://github.com/pulp/pulp_container/issues/673)
- Fixed other instances of fd leak.
[679](https://github.com/pulp/pulp_container/issues/679)
- Removed Namespace validation.
Namespaces are managed transparently on behalf of the user.
[688](https://github.com/pulp/pulp_container/issues/688)
- Fixed some tasks that were using /tmp/ instead of the worker working directory.
[696](https://github.com/pulp/pulp_container/issues/696)
- Fixed the reference to a serializer for building images.
[718](https://github.com/pulp/pulp_container/issues/718)
- Fixed the regular expression for matching dockerhub URLs.
[736](https://github.com/pulp/pulp_container/issues/736)
Improved Documentation
- Added docs for client signature verification policy.
[530](https://github.com/pulp/pulp_container/issues/530)
Misc
- [486](https://github.com/pulp/pulp_container/issues/486), [#495](https://github.com/pulp/pulp_container/issues/495), [#606](https://github.com/pulp/pulp_container/issues/606), [#640](https://github.com/pulp/pulp_container/issues/640), [#665](https://github.com/pulp/pulp_container/issues/665)
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