CHANGELOG.md update

Author: HardNorth

CHANGELOG.md

@@ -4,6 +4,11 @@
 ### Fixed
 - Issue [#198](https://github.com/reportportal/client-Python/issues/198): Python 3.8+ logging issue, by @HardNorth
 - Issue [#200](https://github.com/reportportal/client-Python/issues/200): max_pool_size not worked without retries setting, by @ericscobell
+- Issue [#202](https://github.com/reportportal/client-Python/issues/202): TypeError on request make, by @HardNorth
+### Changed
+- Statistics service rewrite, by @HardNorth
+### Removed
+- Deprecated code, `service.py` and `LogManager` in `core` package, by @HardNorth
 
 ## [5.2.5]
 ### Fixed