What's Changed
* fix: simple change to avoid division by zero in unserved_energy calc by callumtilbury in https://github.com/intelligent-environments-lab/CityLearn/pull/89
* Citylearn challenge 2023 power outage env by kingsleynweye in https://github.com/intelligent-environments-lab/CityLearn/pull/90
New Contributors
* callumtilbury made their first contribution in https://github.com/intelligent-environments-lab/CityLearn/pull/89
**Full Changelog**: https://github.com/intelligent-environments-lab/CityLearn/compare/v2.1b9...v2.1b10