The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
## [Unreleased]
### Major Changes
- Agent.CollectObservations now takes a VectorSensor argument. It was also overloaded to optionally take an ActionMasker argument. (#3352, #3389)
- Most fields on `RayPerceptionSensorComponent` can now be changed while the editor is in Play mode. The exceptions to this are fields that affect the number of observations.
- Unused static methods from the `Utilities` class (ShiftLeft, ReplaceRange, AddRangeNoAlloc, and GetSensorFloatObservationSize) were removed.
### Bugfixes
## [0.14.1-preview] - 2020-02-25
### Bug Fixes
- Fixed demonstration recording of experiences when the Agent is done. (#3463)
- Fixed a bug with the rewards of multiple Agents in the gym interface (#3471, #3496)