diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5176cb9..5c26b92 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,14 @@ All notable changes to this project will be documented in this file.
 
 This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.0.0] - 2026-05-26
+
+### Added
+
+- **request.dispatcher:** Core mediator pattern implementation with async request/response handling
+- **request.result:** Optional result wrapper types (`Result<T>`) for structured responses
+- **request.validation:** Automatic validation pipeline behavior with FluentValidation integration
+
 ## [Unreleased]
 
 ### Added
@@ -12,4 +20,5 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ### Removed
 
-[Unreleased]: https://code.geekeey.de/geekeey/request/src/branch/main
+[1.0.0]: https://code.geekeey.de/geekeey/request/releases/tag/1.0.0
+[Unreleased]: https://code.geekeey.de/geekeey/request/compare/1.0.0...HEAD
diff --git a/Directory.Build.props b/Directory.Build.props
index cab0c4d..0a0e05e 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -10,7 +10,6 @@
 
   <PropertyGroup>
     <VersionPrefix>1.0.0</VersionPrefix>
-    <VersionSuffix>preview</VersionSuffix>
   </PropertyGroup>
 
   <PropertyGroup>