### Bug Fixes
#### com.unity.ml-agents / com.unity.ml-agents.extensions (C#)
#### ml-agents / ml-agents-envs / gym-unity (Python)
- Fixed an issue with LSTM when used with POCA and `sequence_length` < `time_horizon`. Also improved behavior of LSTMs slightly. (#5206)
## [1.9.0-preview] - 2021-03-17
### Major Changes
Ervin Teng