diff --git a/apis/Google.Cloud.Spanner.Admin.Database.V1/Google.Cloud.Spanner.Admin.Database.V1/Google.Cloud.Spanner.Admin.Database.V1.csproj b/apis/Google.Cloud.Spanner.Admin.Database.V1/Google.Cloud.Spanner.Admin.Database.V1/Google.Cloud.Spanner.Admin.Database.V1.csproj
index ca6b34d8a024..cd0d42d44da5 100644
--- a/apis/Google.Cloud.Spanner.Admin.Database.V1/Google.Cloud.Spanner.Admin.Database.V1/Google.Cloud.Spanner.Admin.Database.V1.csproj
+++ b/apis/Google.Cloud.Spanner.Admin.Database.V1/Google.Cloud.Spanner.Admin.Database.V1/Google.Cloud.Spanner.Admin.Database.V1.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Version>4.5.0</Version>
+    <Version>4.6.0</Version>
     <TargetFrameworks>netstandard2.1;net462</TargetFrameworks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <Description>Recommended Google client library to access the Google Cloud Spanner Database Admin API.</Description>
diff --git a/apis/Google.Cloud.Spanner.Admin.Instance.V1/Google.Cloud.Spanner.Admin.Instance.V1/Google.Cloud.Spanner.Admin.Instance.V1.csproj b/apis/Google.Cloud.Spanner.Admin.Instance.V1/Google.Cloud.Spanner.Admin.Instance.V1/Google.Cloud.Spanner.Admin.Instance.V1.csproj
index 102bf08810ce..6c39334c3ce0 100644
--- a/apis/Google.Cloud.Spanner.Admin.Instance.V1/Google.Cloud.Spanner.Admin.Instance.V1/Google.Cloud.Spanner.Admin.Instance.V1.csproj
+++ b/apis/Google.Cloud.Spanner.Admin.Instance.V1/Google.Cloud.Spanner.Admin.Instance.V1/Google.Cloud.Spanner.Admin.Instance.V1.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Version>4.5.0</Version>
+    <Version>4.6.0</Version>
     <TargetFrameworks>netstandard2.1;net462</TargetFrameworks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <Description>Recommended Google client library to access the Google Cloud Spanner Instance Admin API.</Description>
diff --git a/apis/Google.Cloud.Spanner.Common.V1/Google.Cloud.Spanner.Common.V1/Google.Cloud.Spanner.Common.V1.csproj b/apis/Google.Cloud.Spanner.Common.V1/Google.Cloud.Spanner.Common.V1/Google.Cloud.Spanner.Common.V1.csproj
index 8db21126c041..3593c35f1d4f 100644
--- a/apis/Google.Cloud.Spanner.Common.V1/Google.Cloud.Spanner.Common.V1/Google.Cloud.Spanner.Common.V1.csproj
+++ b/apis/Google.Cloud.Spanner.Common.V1/Google.Cloud.Spanner.Common.V1/Google.Cloud.Spanner.Common.V1.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Version>4.5.0</Version>
+    <Version>4.6.0</Version>
     <TargetFrameworks>netstandard2.1;net462</TargetFrameworks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <Description>Common resource names used by all Spanner V1 APIs</Description>
diff --git a/apis/Google.Cloud.Spanner.Data/Google.Cloud.Spanner.Data/Google.Cloud.Spanner.Data.csproj b/apis/Google.Cloud.Spanner.Data/Google.Cloud.Spanner.Data/Google.Cloud.Spanner.Data.csproj
index 5d7836daaebb..242bd6ede4ef 100644
--- a/apis/Google.Cloud.Spanner.Data/Google.Cloud.Spanner.Data/Google.Cloud.Spanner.Data.csproj
+++ b/apis/Google.Cloud.Spanner.Data/Google.Cloud.Spanner.Data/Google.Cloud.Spanner.Data.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Version>4.5.0</Version>
+    <Version>4.6.0</Version>
     <TargetFrameworks>netstandard2.1;net462</TargetFrameworks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <Description>Google ADO.NET Provider for Google Cloud Spanner.</Description>
diff --git a/apis/Google.Cloud.Spanner.Data/docs/history.md b/apis/Google.Cloud.Spanner.Data/docs/history.md
index 231a3057d73a..7912acac0c7e 100644
--- a/apis/Google.Cloud.Spanner.Data/docs/history.md
+++ b/apis/Google.Cloud.Spanner.Data/docs/history.md
@@ -1,5 +1,22 @@
 # Version history
 
+## Version 4.6.0, released 2023-06-26
+
+### Bug fixes
+
+- Makes transactions marked as DisposedBehaviour.Detach actually detach from the session pool. ([commit ab7526f](https://github.com/googleapis/google-cloud-dotnet/commit/ab7526f4d8fed91a5913c0558cfe2bf60516feba))
+- Dispose result streams ([commit d92f88e](https://github.com/googleapis/google-cloud-dotnet/commit/d92f88e681ef91fd92d7155cadf515a0cdfbad78))
+
+### New features
+
+- Support `dataBoostEnabled` field in partitioned read and execute SQL operations. ([commit 25531f2](https://github.com/googleapis/google-cloud-dotnet/commit/25531f25d938b5f680059059d34a72654393c71e))
+- Add DdlStatementActionInfo and add actions to UpdateDatabaseDdlMetadata ([commit 2bdd8bc](https://github.com/googleapis/google-cloud-dotnet/commit/2bdd8bc563477f49203bb78b41a744e696f40e3b))
+- Add support for UpdateDatabase in Cloud Spanner ([commit 3b98d26](https://github.com/googleapis/google-cloud-dotnet/commit/3b98d2699a164b0ad4ee775c96c4c3b2b4598ecb))
+
+### Documentation improvements
+
+- Improvements on DataBoostEnabled docs. ([commit 5791342](https://github.com/googleapis/google-cloud-dotnet/commit/5791342c544ecb49039457e76a9220c36c9f7957))
+
 ## Version 4.5.0, released 2023-05-04
 
 ### New features
diff --git a/apis/Google.Cloud.Spanner.V1/Google.Cloud.Spanner.V1/Google.Cloud.Spanner.V1.csproj b/apis/Google.Cloud.Spanner.V1/Google.Cloud.Spanner.V1/Google.Cloud.Spanner.V1.csproj
index 34714879c2e5..7549f0cde7c5 100644
--- a/apis/Google.Cloud.Spanner.V1/Google.Cloud.Spanner.V1/Google.Cloud.Spanner.V1.csproj
+++ b/apis/Google.Cloud.Spanner.V1/Google.Cloud.Spanner.V1/Google.Cloud.Spanner.V1.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Version>4.5.0</Version>
+    <Version>4.6.0</Version>
     <TargetFrameworks>netstandard2.1;net462</TargetFrameworks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <Description>Low-level Google client library to access the Google Cloud Spanner API. The ADO.NET provider (Google.Cloud.Spanner.Data) which depends on this package is generally preferred for Spanner access.</Description>
diff --git a/apis/apis.json b/apis/apis.json
index 118e08f6362d..f1f22619232f 100644
--- a/apis/apis.json
+++ b/apis/apis.json
@@ -4089,7 +4089,7 @@
       "protoPath": "google/spanner/admin/database/v1",
       "productName": "Google Cloud Spanner Database Administration",
       "productUrl": "https://cloud.google.com/spanner/",
-      "version": "4.5.0",
+      "version": "4.6.0",
       "commonResourcesConfig": "apis/Google.Cloud.Spanner.Common.V1/CommonResourcesConfig.json",
       "type": "grpc",
       "description": "Recommended Google client library to access the Google Cloud Spanner Database Admin API.",
@@ -4115,7 +4115,7 @@
       "protoPath": "google/spanner/admin/instance/v1",
       "productName": "Google Cloud Spanner Instance Administration",
       "productUrl": "https://cloud.google.com/spanner/",
-      "version": "4.5.0",
+      "version": "4.6.0",
       "commonResourcesConfig": "apis/Google.Cloud.Spanner.Common.V1/CommonResourcesConfig.json",
       "type": "grpc",
       "description": "Recommended Google client library to access the Google Cloud Spanner Instance Admin API.",
@@ -4139,7 +4139,7 @@
       "id": "Google.Cloud.Spanner.Data",
       "targetFrameworks": "netstandard2.1;net462",
       "testTargetFrameworks": "net6.0;net462",
-      "version": "4.5.0",
+      "version": "4.6.0",
       "type": "other",
       "metadataType": "INTEGRATION",
       "description": "Google ADO.NET Provider for Google Cloud Spanner.",
@@ -4168,7 +4168,7 @@
       "id": "Google.Cloud.Spanner.Common.V1",
       "type": "other",
       "targetFrameworks": "netstandard2.1;net462",
-      "version": "4.5.0",
+      "version": "4.6.0",
       "description": "Common resource names used by all Spanner V1 APIs",
       "tags": [
         "Spanner"
@@ -4184,7 +4184,7 @@
       "protoPath": "google/spanner/v1",
       "productName": "Google Cloud Spanner",
       "productUrl": "https://cloud.google.com/spanner/",
-      "version": "4.5.0",
+      "version": "4.6.0",
       "commonResourcesConfig": "apis/Google.Cloud.Spanner.Common.V1/CommonResourcesConfig.json",
       "type": "grpc",
       "metadataType": "GAPIC_COMBO",