Updating changelog

com.unity.perception/CHANGELOG.md

 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]
+## [0.3.0-preview.1] - 2020-08-07
-### Changed
+Added realtime visualization capability to the perception package.
-### Deprecated
+Added visualizers for built-in labelers: Semantic Segmentation, 2D Bounding Boxes, Object Count, and Rendered Object Info.
-### Removed
+Added references to example projects in manual.
-### Fixed
-Fixed compilation warnings with latest com.unity.simulation.core package.
+Added notification when an HDRP project is in Deferred Only mode, which is not supported by the labelers.
-### Security
+### Changed
-## [0.3.0-preview.1] - 2020-07-31
+Updated to com.unity.simulation.capture version 0.0.10-preview.10 and com.unity.simulation.core version 0.0.10-preview.17
-### Added
+Changed minimum Unity Editor version to 2019.4
-Added realtime visualization capability to the perception package.
+### Fixed
+Fixed compilation warnings with latest com.unity.simulation.core package.
-Added visualizers for built-in labelers: Semantic Segmentation, 2D Bounding Boxes, Object Count, and Render Object Info.
+Fixed errors in example script when exiting play mode
 
 ## [0.2.0-preview.2] - 2020-07-15