diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 11450cef85a..e3d38e8f1f7 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "6.5.0"
+    ".": "6.6.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a617ca3f31d..45d0d974e42 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project does adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [6.6.0](https://github.com/microsoftgraph/msgraph-sdk-dotnet/compare/6.5.0...6.6.0) (2026-08-20)
+
+
+### Features
+
+* **generation:** update request builders and models ([#3171](https://github.com/microsoftgraph/msgraph-sdk-dotnet/issues/3171)) ([24e68f7](https://github.com/microsoftgraph/msgraph-sdk-dotnet/commit/24e68f7f24e26f8c494ba09723874d43cb8b159a))
+
 ## [6.5.0](https://github.com/microsoftgraph/msgraph-sdk-dotnet/compare/6.4.0...6.5.0) (2026-08-05)
 
 
diff --git a/src/Microsoft.Graph/Microsoft.Graph.csproj b/src/Microsoft.Graph/Microsoft.Graph.csproj
index 26292607851..2faa66fb3b4 100644
--- a/src/Microsoft.Graph/Microsoft.Graph.csproj
+++ b/src/Microsoft.Graph/Microsoft.Graph.csproj
@@ -23,7 +23,7 @@
     <AssemblyOriginatorKeyFile>35MSSharedLib1024.snk</AssemblyOriginatorKeyFile>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <!-- x-release-please-start-version -->
-    <VersionPrefix>6.5.0</VersionPrefix>
+    <VersionPrefix>6.6.0</VersionPrefix>
     <!-- x-release-please-end -->
     <!-- VersionPrefix minor version should not be set when the change comes from the generator. It will be updated automatically. -->
     <!-- VersionPrefix minor version must be manually set when making manual changes to code. -->