update changelog

Author: jonhealy1

Diff for: CHANGELOG.md

@@ -8,8 +8,15 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## [Unreleased]
 
 ### Added
+- Added support for dynamically-generated queryables based on Elasticsearch/OpenSearch mappings, with extensible metadata augmentation [#351](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/351)
+- Included default queryables configuration for seamless integration. [#351](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/351)
 
 ### Changed
+- Refactored database logic to reduce duplication [#351](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/351)
+- Replaced `fastapi-slim` with `fastapi` dependency [#351](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/351)
+
+### Fixed
+- Improved performance of `mk_actions` and `filter-links` methods [#351](https://github.com/stac-utils/stac-fastapi-elasticsearch-opensearch/pull/351)
 
 ## [v3.2.5] - 2025-04-07