diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index d3b935ae42c..04e1f646434 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,4 +1,4 @@
 {
-    ".": "0.165.0"
+    ".": "0.166.0"
 }
   
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4f450d2fe80..d98b0193cbb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.166.0](https://github.com/microsoftgraph/msgraph-beta-sdk-go/compare/v0.165.0...v0.166.0) (2026-08-20)
+
+
+### Features
+
+* **generation:** update request builders and models ([#661](https://github.com/microsoftgraph/msgraph-beta-sdk-go/issues/661)) ([0889231](https://github.com/microsoftgraph/msgraph-beta-sdk-go/commit/0889231d72371a698e7af81b405b84ec62c50d8d))
+
 ## [0.165.0](https://github.com/microsoftgraph/msgraph-beta-sdk-go/compare/v0.164.0...v0.165.0) (2026-08-05)
 
 
diff --git a/graph_request_adapter.go b/graph_request_adapter.go
index d220fcf8083..0a511858ad8 100644
--- a/graph_request_adapter.go
+++ b/graph_request_adapter.go
@@ -12,7 +12,7 @@ var clientOptions = core.GraphClientOptions{
 	GraphServiceVersion: "beta",
 	/** The SDK version */
 	// x-release-please-start-version
-	GraphServiceLibraryVersion: "0.165.0",
+	GraphServiceLibraryVersion: "0.166.0",
 	// x-release-please-end
 }