- Fixed issue with FoodCollector, Soccer, and WallJump when playing with keyboard. (#4147, #4174)
- Fixed a crash in StatsReporter when using threaded trainers with very frequent summary writes
(#4201)
- `mlagents-learn` will now raise an error immediately if `--num-envs` is greater than 1 without setting the `--env`
argument. (#4203)
## [1.1.0-preview] - 2020-06-10
### Major Changes
- `max_step` in the `TerminalStep` and `TerminalSteps` objects was renamed `interrupted`.
- `beta` and `epsilon` in `PPO` are no longer decayed by default but follow the same schedule as learning rate. (#3940)
- `get_behavior_names()` and `get_behavior_spec()` on UnityEnvironment were replaced by the `behavior_specs` property. (#3946)
- The first version of the Unity Environment Registry (Experimental) has been released. More information [here](https://github.com/Unity-Technologies/ml-agents/blob/release_3_docs/docs/Unity-Environment-Registry.md)(#3967)
- The first version of the Unity Environment Registry (Experimental) has been released. More information [here](https://github.com/Unity-Technologies/ml-agents/blob/release_4_docs/docs/Unity-Environment-Registry.md)(#3967)
- `use_visual` and `allow_multiple_visual_obs` in the `UnityToGymWrapper` constructor
were replaced by `allow_multiple_obs` which allows one or more visual observations and
vector observations to be used simultaneously. (#3981) Thank you @shakenes !
- The format for trainer configuration has changed, and the "default" behavior has been deprecated.
See the [Migration Guide](https://github.com/Unity-Technologies/ml-agents/blob/release_3_docs/docs/Migrating.md) for more details. (#3936)
See the [Migration Guide](https://github.com/Unity-Technologies/ml-agents/blob/release_4_docs/docs/Migrating.md) for more details. (#3936)
- Training artifacts (trained models, summaries) are now found in the `results/`
directory. (#3829)
- When using Curriculum, the current lesson will resume if training is quit and resumed. As such,
/// [Observations and Sensors]: https://github.com/Unity-Technologies/ml-agents/blob/release_3_docs/docs/Learning-Environment-Design-Agents.md#observations-and-sensors
/// [Observations and Sensors]: https://github.com/Unity-Technologies/ml-agents/blob/release_4_docs/docs/Learning-Environment-Design-Agents.md#observations-and-sensors