Update CHANGELOG.md

Author: berezovskyi

CHANGELOG.md

@@ -5,7 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [0.3.0-alpha] - 2023-04-29
+
+### Security
+
+- **Updated `log4net` in response to CVE-2018-1285.**
+- **Updated `Newtonsoft.Json` in response to [CWE-755](https://cwe.mitre.org/data/definitions/755.html).**
 
 ### Added
 
@@ -33,11 +38,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - `System.Net.Http.Formatting` issues were resolved by removing references to related SDK-provider assemblies, assembly extensions, and replacing them with a uniform reference to `Microsoft.AspNet.WebApi.Client` 5.2.9.
 
-### Security
-
-- **Updated `log4net` in response to CVE-2018-1285.**
-- **Updated `Newtonsoft.Json` in response to [CWE-755](https://cwe.mitre.org/data/definitions/755.html).**
-
 ## [0.2.3] - 2013-07-26
 
 ### Added