Docs: Update CHANGELOG for v0.2.0

Author: Chocapikk

CHANGELOG.md

@@ -8,15 +8,29 @@ and this project adheres to
 
 ## [Unreleased]
 
+### Added
+
+- AsyncClient with full async/await support using httpx
+- Simple `search()` API accepting raw query strings
+- `get_domain()` method for domain lookups
+- Streaming `bulk_export_stream()` for memory-efficient exports
+- `serialize_queries()` helper to reduce query serialization duplication
+- Async example in `example/example_async_client.py`
+
 ### Changed
 
+- Use `__get` in both sync and async clients for uniform internal API
 - Updated l9format requirement from =1.3.2 to =1.4.0 ([ae676d9])
 - Updated l9format requirement from =1.4.0 to =2.0.0 ([df916e5], [#68])
 
 ### Added
 
 - Add Python 3.11, 3.12, and 3.14 support ([d111628])
 
+### Fixed
+
+- Return `SuccessResponse` for HTTP 204 No Content instead of `ErrorResponse` ([3d2cf4e])
+
 ### Removed
 
 - Removed dependency on serde (unmaintained), replaced with dataclasses
@@ -66,6 +80,8 @@ and this project adheres to
 [0.1.9]: https://github.com/LeakIX/LeakIXClient-Python/releases/tag/v0.1.9
 
 <!-- Commit links -->
+[1126bd2]: https://github.com/LeakIX/LeakIXClient-Python/commit/1126bd2
+[3d2cf4e]: https://github.com/LeakIX/LeakIXClient-Python/commit/3d2cf4e
 [cfa8b6c]: https://github.com/LeakIX/LeakIXClient-Python/commit/cfa8b6c
 [6b9a3db]: https://github.com/LeakIX/LeakIXClient-Python/commit/6b9a3db
 [d111628]: https://github.com/LeakIX/LeakIXClient-Python/commit/d111628