Update CHANGELOG.md

Author: Phil Varner

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 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] - TBD
+## [0.5.0] - 2022-12-23
 
 ### Removed
 
@@ -51,6 +51,12 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - ES_BATCH_SIZE variable (replaced by INGEST_BATCH_SIZE)
 - ES_HOST variable (replaced by OPENSEARCH_HOST variable)
 
+## [0.4.2] - 2022-12-20
+
+### Added
+
+- (Experimental) Adds Item 'thumbnail' link to presign an s3 protocol thumbnail asset ARN
+
 ## [0.4.1] - 2022-07-11
 
 ### Added
@@ -193,6 +199,8 @@ Initial release, forked from [sat-api](https://github.com/sat-utils/sat-api/tree
 
 Compliant with STAC 0.9.0
 
+[0.5.0]: https://github.com/stac-utils/stac-api/compare/v0.4.1...v0.5.0
+[0.4.2]: https://github.com/stac-utils/stac-api/compare/v0.4.1...v0.4.2
 [0.4.1]: https://github.com/stac-utils/stac-api/compare/v0.4.0...v0.4.1
 [0.4.0]: https://github.com/stac-utils/stac-api/compare/v0.3.1...v0.4.0
 [0.3.1]: https://github.com/stac-utils/stac-api/compare/v0.3.0...v0.3.1