sizes and will need to be retrained. (#5181)
#### ml-agents / ml-agents-envs / gym-unity (Python)
- The `--resume` flag now supports loading partial models if the architecture has changed. See
[here](https://github.com/Unity-Technologies/ml-agents/blob/main/docs/Training-ML-Agents.md#loading-an-existing-model)
for more details.
### Minor Changes
#### com.unity.ml-agents / com.unity.ml-agents.extensions (C#)
Andrew Cohen