The tag 0.13.0 was created, but the build to publish the release failed to pypi failed.
Therefore, 0.13.0 is not listed in this CHANGELOG.md
- [293](https://github.com/mobilityhouse/ocpp/issues/293) Add missing attributes to `GetVariableResultType`. Thanks [proelke](https://github.com/proelke)
- [294](https://github.com/mobilityhouse/ocpp/issues/294) Improved error handling when schema validation fails. Thanks [joaomariord](https://github.com/joaomariord)