docs: update changelog for alpha-2

CHANGELOG.md

@@ -13,10 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
-- Make properties in API schemas in CamelCase notation (aura#141)
-- Configuration: Renamed environment variable `AURA_ENGINE_SERVER_TIMEOUT` to `AURA_ENGINE_SERVER_TIMEOUT`
-  and configuration setting `telnet_server_timeout` to `server_timeout`.
-- Configuration: Increase default value for `server_timeout`, to avoid malfunctions when idle (aura#165)
+- ...
 
 ### Deprecated
 
@@ -28,13 +25,26 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
-- Telnet server sample config not working (engine-core#45).
-- Extend and improve output for `make help`.
+- ...
 
 ### Security
 
 - ...
 
+## [1.0.0-alpha2] - 2023-06-19
+
+### Changed
+
+- Make properties in API schemas in CamelCase notation (aura#141)
+- Configuration: Renamed environment variable `AURA_ENGINE_SERVER_TIMEOUT` to `AURA_ENGINE_SERVER_TIMEOUT`
+  and configuration setting `telnet_server_timeout` to `server_timeout`.
+- Configuration: Increase default value for `server_timeout`, to avoid malfunctions when idle (aura#165)
+
+### Fixed
+
+- Telnet server sample config not working (engine-core#45).
+- Extend and improve output for `make help`.
+
 ## [1.0.0-alpha1] - 2023-02-22
 
 Initial release.