diff --git a/get-started/azure-auth/cli/src/Client/GetUserApiClient.cs b/get-started/azure-auth/cli/src/Client/GetUserApiClient.cs
index 6cb23a5fb..038eaa933 100644
--- a/get-started/azure-auth/cli/src/Client/GetUserApiClient.cs
+++ b/get-started/azure-auth/cli/src/Client/GetUserApiClient.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using GetUserClient.ApiClient.Me;
 using Microsoft.Kiota.Abstractions.Extensions;
 using Microsoft.Kiota.Abstractions;
@@ -19,7 +20,7 @@ namespace GetUserClient.ApiClient
     /// <summary>
     /// The main entry point of the SDK, exposes the configuration and the fluent API.
     /// </summary>
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     public partial class GetUserApiClient : BaseCliRequestBuilder
     {
         /// <summary>
@@ -58,3 +59,4 @@ public Command BuildRootCommand()
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/azure-auth/cli/src/Client/Me/MeRequestBuilder.cs b/get-started/azure-auth/cli/src/Client/Me/MeRequestBuilder.cs
index b16e7eb9b..031e547bc 100644
--- a/get-started/azure-auth/cli/src/Client/Me/MeRequestBuilder.cs
+++ b/get-started/azure-auth/cli/src/Client/Me/MeRequestBuilder.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using GetUserClient.ApiClient.Models;
 using Microsoft.Kiota.Abstractions.Extensions;
 using Microsoft.Kiota.Abstractions.Serialization;
@@ -18,7 +19,7 @@ namespace GetUserClient.ApiClient.Me
     /// <summary>
     /// Builds and executes requests for operations under \me
     /// </summary>
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     public partial class MeRequestBuilder : BaseCliRequestBuilder
     {
         /// <returns>A <see cref="Command"/></returns>
@@ -77,3 +78,4 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/azure-auth/cli/src/Client/Models/User.cs b/get-started/azure-auth/cli/src/Client/Models/User.cs
index d6d514def..e11fb50e7 100644
--- a/get-started/azure-auth/cli/src/Client/Models/User.cs
+++ b/get-started/azure-auth/cli/src/Client/Models/User.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using Microsoft.Kiota.Abstractions.Extensions;
 using Microsoft.Kiota.Abstractions.Serialization;
 using System.Collections.Generic;
@@ -6,7 +7,7 @@
 using System;
 namespace GetUserClient.ApiClient.Models
 {
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     #pragma warning disable CS1591
     public partial class User : IAdditionalDataHolder, IParsable
     #pragma warning restore CS1591
@@ -71,3 +72,4 @@ public virtual void Serialize(ISerializationWriter writer)
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/azure-auth/cli/src/Client/kiota-lock.json b/get-started/azure-auth/cli/src/Client/kiota-lock.json
index d0fe603e3..ed4823c4a 100644
--- a/get-started/azure-auth/cli/src/Client/kiota-lock.json
+++ b/get-started/azure-auth/cli/src/Client/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "126B1DCD90D419BD411E85DB2452D7D395405237ACF715ECB02992FB92848451D51D4254758E106D7281F10FCEA55629636227F3DC5AFB2550A04CB944BD6EE1",
   "descriptionLocation": "../../../get-me.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "GetUserApiClient",
   "clientNamespaceName": "GetUserClient.ApiClient",
   "language": "CLI",
diff --git a/get-started/azure-auth/dotnet/src/Client/GetUserApiClient.cs b/get-started/azure-auth/dotnet/src/Client/GetUserApiClient.cs
index 6cae762ba..eeb69a7d7 100644
--- a/get-started/azure-auth/dotnet/src/Client/GetUserApiClient.cs
+++ b/get-started/azure-auth/dotnet/src/Client/GetUserApiClient.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using GetUserClient.ApiClient.Me;
 using Microsoft.Kiota.Abstractions.Extensions;
 using Microsoft.Kiota.Abstractions;
@@ -15,7 +16,7 @@ namespace GetUserClient.ApiClient
     /// <summary>
     /// The main entry point of the SDK, exposes the configuration and the fluent API.
     /// </summary>
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     public partial class GetUserApiClient : BaseRequestBuilder
     {
         /// <summary>The me property</summary>
@@ -44,3 +45,4 @@ public partial class GetUserApiClient : BaseRequestBuilder
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/azure-auth/dotnet/src/Client/Me/MeRequestBuilder.cs b/get-started/azure-auth/dotnet/src/Client/Me/MeRequestBuilder.cs
index cfa56264f..175b650af 100644
--- a/get-started/azure-auth/dotnet/src/Client/Me/MeRequestBuilder.cs
+++ b/get-started/azure-auth/dotnet/src/Client/Me/MeRequestBuilder.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using GetUserClient.ApiClient.Models;
 using Microsoft.Kiota.Abstractions.Extensions;
 using Microsoft.Kiota.Abstractions.Serialization;
@@ -13,7 +14,7 @@ namespace GetUserClient.ApiClient.Me
     /// <summary>
     /// Builds and executes requests for operations under \me
     /// </summary>
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     public partial class MeRequestBuilder : BaseRequestBuilder
     {
         /// <summary>
@@ -76,9 +77,10 @@ public RequestInformation ToGetRequestInformation(Action<RequestConfiguration<De
         /// Configuration for the request such as headers, query parameters, and middleware options.
         /// </summary>
         [Obsolete("This class is deprecated. Please use the generic RequestConfiguration class generated by the generator.")]
-        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
         public partial class MeRequestBuilderGetRequestConfiguration : RequestConfiguration<DefaultQueryParameters>
         {
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/azure-auth/dotnet/src/Client/Models/User.cs b/get-started/azure-auth/dotnet/src/Client/Models/User.cs
index d6d514def..e11fb50e7 100644
--- a/get-started/azure-auth/dotnet/src/Client/Models/User.cs
+++ b/get-started/azure-auth/dotnet/src/Client/Models/User.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using Microsoft.Kiota.Abstractions.Extensions;
 using Microsoft.Kiota.Abstractions.Serialization;
 using System.Collections.Generic;
@@ -6,7 +7,7 @@
 using System;
 namespace GetUserClient.ApiClient.Models
 {
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     #pragma warning disable CS1591
     public partial class User : IAdditionalDataHolder, IParsable
     #pragma warning restore CS1591
@@ -71,3 +72,4 @@ public virtual void Serialize(ISerializationWriter writer)
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/azure-auth/dotnet/src/Client/kiota-lock.json b/get-started/azure-auth/dotnet/src/Client/kiota-lock.json
index a357e43e0..e3b5318f4 100644
--- a/get-started/azure-auth/dotnet/src/Client/kiota-lock.json
+++ b/get-started/azure-auth/dotnet/src/Client/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "126B1DCD90D419BD411E85DB2452D7D395405237ACF715ECB02992FB92848451D51D4254758E106D7281F10FCEA55629636227F3DC5AFB2550A04CB944BD6EE1",
   "descriptionLocation": "../../../get-me.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "GetUserApiClient",
   "clientNamespaceName": "GetUserClient.ApiClient",
   "language": "CSharp",
diff --git a/get-started/azure-auth/go/client/kiota-lock.json b/get-started/azure-auth/go/client/kiota-lock.json
index 163d6c5cc..d2a311a4a 100644
--- a/get-started/azure-auth/go/client/kiota-lock.json
+++ b/get-started/azure-auth/go/client/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "126B1DCD90D419BD411E85DB2452D7D395405237ACF715ECB02992FB92848451D51D4254758E106D7281F10FCEA55629636227F3DC5AFB2550A04CB944BD6EE1",
   "descriptionLocation": "../../get-me.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "GraphApiClient",
   "clientNamespaceName": "getuser/client",
   "language": "Go",
diff --git a/get-started/azure-auth/java/app/src/main/java/getuserclient/apiclient/kiota-lock.json b/get-started/azure-auth/java/app/src/main/java/getuserclient/apiclient/kiota-lock.json
index d4241aa99..8e95f3bb5 100644
--- a/get-started/azure-auth/java/app/src/main/java/getuserclient/apiclient/kiota-lock.json
+++ b/get-started/azure-auth/java/app/src/main/java/getuserclient/apiclient/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "126B1DCD90D419BD411E85DB2452D7D395405237ACF715ECB02992FB92848451D51D4254758E106D7281F10FCEA55629636227F3DC5AFB2550A04CB944BD6EE1",
   "descriptionLocation": "../../../../../../../get-me.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "GetUserApiClient",
   "clientNamespaceName": "getuserclient.apiclient",
   "language": "Java",
diff --git a/get-started/azure-auth/php/client/kiota-lock.json b/get-started/azure-auth/php/client/kiota-lock.json
index 32c91a957..35c0fdc10 100644
--- a/get-started/azure-auth/php/client/kiota-lock.json
+++ b/get-started/azure-auth/php/client/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "126B1DCD90D419BD411E85DB2452D7D395405237ACF715ECB02992FB92848451D51D4254758E106D7281F10FCEA55629636227F3DC5AFB2550A04CB944BD6EE1",
   "descriptionLocation": "../../get-me.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "GraphApiClient",
   "clientNamespaceName": "GetUser\\Client",
   "language": "PHP",
diff --git a/get-started/azure-auth/python/client/kiota-lock.json b/get-started/azure-auth/python/client/kiota-lock.json
index a04a49d9c..754d598bc 100644
--- a/get-started/azure-auth/python/client/kiota-lock.json
+++ b/get-started/azure-auth/python/client/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "126B1DCD90D419BD411E85DB2452D7D395405237ACF715ECB02992FB92848451D51D4254758E106D7281F10FCEA55629636227F3DC5AFB2550A04CB944BD6EE1",
   "descriptionLocation": "../../get-me.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "GetUserApiClient",
   "clientNamespaceName": "client",
   "language": "Python",
diff --git a/get-started/azure-auth/ruby/client/kiota-lock.json b/get-started/azure-auth/ruby/client/kiota-lock.json
index 1edd2fd34..cbf731214 100644
--- a/get-started/azure-auth/ruby/client/kiota-lock.json
+++ b/get-started/azure-auth/ruby/client/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "126B1DCD90D419BD411E85DB2452D7D395405237ACF715ECB02992FB92848451D51D4254758E106D7281F10FCEA55629636227F3DC5AFB2550A04CB944BD6EE1",
   "descriptionLocation": "../../get-me.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "GetUserApiClient",
   "clientNamespaceName": "GetUser",
   "language": "Ruby",
diff --git a/get-started/azure-auth/typescript/client/getUserApiClient.ts b/get-started/azure-auth/typescript/client/getUserApiClient.ts
index a843a5990..c0d0136f7 100644
--- a/get-started/azure-auth/typescript/client/getUserApiClient.ts
+++ b/get-started/azure-auth/typescript/client/getUserApiClient.ts
@@ -27,7 +27,7 @@ export function createGetUserApiClient(requestAdapter: RequestAdapter) {
     registerDefaultDeserializer(JsonParseNodeFactory);
     registerDefaultDeserializer(TextParseNodeFactory);
     registerDefaultDeserializer(FormParseNodeFactory);
-    if (requestAdapter.baseUrl === undefined || requestAdapter.baseUrl === "") {
+    if (requestAdapter.baseUrl === undefined || requestAdapter.baseUrl === null || requestAdapter.baseUrl === "") {
         requestAdapter.baseUrl = "https://graph.microsoft.com/v1.0";
     }
     const pathParameters: Record<string, unknown> = {
diff --git a/get-started/azure-auth/typescript/client/kiota-lock.json b/get-started/azure-auth/typescript/client/kiota-lock.json
index 4149b6737..6eeed5b99 100644
--- a/get-started/azure-auth/typescript/client/kiota-lock.json
+++ b/get-started/azure-auth/typescript/client/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "126B1DCD90D419BD411E85DB2452D7D395405237ACF715ECB02992FB92848451D51D4254758E106D7281F10FCEA55629636227F3DC5AFB2550A04CB944BD6EE1",
   "descriptionLocation": "../../get-me.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "GetUserApiClient",
   "clientNamespaceName": "ApiSdk",
   "language": "TypeScript",
diff --git a/get-started/azure-auth/typescript/client/models/index.ts b/get-started/azure-auth/typescript/client/models/index.ts
index 40283ca53..987f1c01a 100644
--- a/get-started/azure-auth/typescript/client/models/index.ts
+++ b/get-started/azure-auth/typescript/client/models/index.ts
@@ -29,10 +29,12 @@ export function deserializeIntoUser(user: Partial<User> | undefined = {}) : Reco
  * @param writer Serialization writer to use to serialize this model
  */
 // @ts-ignore
-export function serializeUser(writer: SerializationWriter, user: Partial<User> | undefined = {}) : void {
-    writer.writeStringValue("displayName", user.displayName);
-    writer.writeStringValue("id", user.id);
-    writer.writeAdditionalData(user.additionalData);
+export function serializeUser(writer: SerializationWriter, user: Partial<User> | undefined | null = {}) : void {
+    if (user) {
+        writer.writeStringValue("displayName", user.displayName);
+        writer.writeStringValue("id", user.id);
+        writer.writeAdditionalData(user.additionalData);
+    }
 }
 export interface User extends AdditionalDataHolder, Parsable {
     /**
@@ -42,11 +44,11 @@ export interface User extends AdditionalDataHolder, Parsable {
     /**
      * The displayName property
      */
-    displayName?: string;
+    displayName?: string | null;
     /**
      * The id property
      */
-    id?: string;
+    id?: string | null;
 }
 /* tslint:enable */
 /* eslint-enable */
diff --git a/get-started/quickstart/cli/src/Client/Models/Post.cs b/get-started/quickstart/cli/src/Client/Models/Post.cs
index 05f5ed0d8..aded5d2b2 100644
--- a/get-started/quickstart/cli/src/Client/Models/Post.cs
+++ b/get-started/quickstart/cli/src/Client/Models/Post.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using Microsoft.Kiota.Abstractions.Extensions;
 using Microsoft.Kiota.Abstractions.Serialization;
 using System.Collections.Generic;
@@ -6,7 +7,7 @@
 using System;
 namespace KiotaPostsCLI.Client.Models
 {
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     #pragma warning disable CS1591
     public partial class Post : IAdditionalDataHolder, IParsable
     #pragma warning restore CS1591
@@ -79,3 +80,4 @@ public virtual void Serialize(ISerializationWriter writer)
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/quickstart/cli/src/Client/Posts/Item/PostItemRequestBuilder.cs b/get-started/quickstart/cli/src/Client/Posts/Item/PostItemRequestBuilder.cs
index d06ab7b47..a650fac8f 100644
--- a/get-started/quickstart/cli/src/Client/Posts/Item/PostItemRequestBuilder.cs
+++ b/get-started/quickstart/cli/src/Client/Posts/Item/PostItemRequestBuilder.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using KiotaPostsCLI.Client.Models;
 using Microsoft.Kiota.Abstractions.Extensions;
 using Microsoft.Kiota.Abstractions.Serialization;
@@ -18,7 +19,7 @@ namespace KiotaPostsCLI.Client.Posts.Item
     /// <summary>
     /// Builds and executes requests for operations under \posts\{post-id}
     /// </summary>
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     public partial class PostItemRequestBuilder : BaseCliRequestBuilder
     {
         /// <summary>
@@ -212,3 +213,4 @@ public RequestInformation ToPatchRequestInformation(global::KiotaPostsCLI.Client
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/quickstart/cli/src/Client/Posts/PostsRequestBuilder.cs b/get-started/quickstart/cli/src/Client/Posts/PostsRequestBuilder.cs
index b3f77d6e8..5eeb8bd12 100644
--- a/get-started/quickstart/cli/src/Client/Posts/PostsRequestBuilder.cs
+++ b/get-started/quickstart/cli/src/Client/Posts/PostsRequestBuilder.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using KiotaPostsCLI.Client.Models;
 using KiotaPostsCLI.Client.Posts.Item;
 using Microsoft.Kiota.Abstractions.Extensions;
@@ -19,7 +20,7 @@ namespace KiotaPostsCLI.Client.Posts
     /// <summary>
     /// Builds and executes requests for operations under \posts
     /// </summary>
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     public partial class PostsRequestBuilder : BaseCliRequestBuilder
     {
         /// <summary>
@@ -173,7 +174,7 @@ public RequestInformation ToPostRequestInformation(global::KiotaPostsCLI.Client.
         /// <summary>
         /// Get posts
         /// </summary>
-        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
         public partial class PostsRequestBuilderGetQueryParameters 
         {
             /// <summary>Filter results by title</summary>
@@ -192,3 +193,4 @@ public partial class PostsRequestBuilderGetQueryParameters
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/quickstart/cli/src/Client/PostsClient.cs b/get-started/quickstart/cli/src/Client/PostsClient.cs
index 67b26f200..fd607373b 100644
--- a/get-started/quickstart/cli/src/Client/PostsClient.cs
+++ b/get-started/quickstart/cli/src/Client/PostsClient.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using KiotaPostsCLI.Client.Posts;
 using Microsoft.Kiota.Abstractions.Extensions;
 using Microsoft.Kiota.Abstractions;
@@ -19,7 +20,7 @@ namespace KiotaPostsCLI.Client
     /// <summary>
     /// The main entry point of the SDK, exposes the configuration and the fluent API.
     /// </summary>
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     public partial class PostsClient : BaseCliRequestBuilder
     {
         /// <summary>
@@ -67,3 +68,4 @@ public Command BuildRootCommand()
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/quickstart/cli/src/Client/kiota-lock.json b/get-started/quickstart/cli/src/Client/kiota-lock.json
index 8cb3f121b..a4336309b 100644
--- a/get-started/quickstart/cli/src/Client/kiota-lock.json
+++ b/get-started/quickstart/cli/src/Client/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "37FE8D63AB108F248AAA5632A5D37D625F8B9E3A6C439952B4029B0AF49579F337028FE07768B89D6F9210460D77E116F312CB505A43E8EB877131E772464F3B",
   "descriptionLocation": "../../../posts-api.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "PostsClient",
   "clientNamespaceName": "KiotaPostsCLI.Client",
   "language": "CLI",
diff --git a/get-started/quickstart/dotnet/src/Client/Models/Post.cs b/get-started/quickstart/dotnet/src/Client/Models/Post.cs
index d15d4fcbd..2472f6125 100644
--- a/get-started/quickstart/dotnet/src/Client/Models/Post.cs
+++ b/get-started/quickstart/dotnet/src/Client/Models/Post.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using Microsoft.Kiota.Abstractions.Extensions;
 using Microsoft.Kiota.Abstractions.Serialization;
 using System.Collections.Generic;
@@ -6,7 +7,7 @@
 using System;
 namespace KiotaPosts.Client.Models
 {
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     #pragma warning disable CS1591
     public partial class Post : IAdditionalDataHolder, IParsable
     #pragma warning restore CS1591
@@ -79,3 +80,4 @@ public virtual void Serialize(ISerializationWriter writer)
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/quickstart/dotnet/src/Client/Posts/Item/PostItemRequestBuilder.cs b/get-started/quickstart/dotnet/src/Client/Posts/Item/PostItemRequestBuilder.cs
index fd1b51241..2410b7b11 100644
--- a/get-started/quickstart/dotnet/src/Client/Posts/Item/PostItemRequestBuilder.cs
+++ b/get-started/quickstart/dotnet/src/Client/Posts/Item/PostItemRequestBuilder.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using KiotaPosts.Client.Models;
 using Microsoft.Kiota.Abstractions.Extensions;
 using Microsoft.Kiota.Abstractions.Serialization;
@@ -13,7 +14,7 @@ namespace KiotaPosts.Client.Posts.Item
     /// <summary>
     /// Builds and executes requests for operations under \posts\{post-id}
     /// </summary>
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     public partial class PostItemRequestBuilder : BaseRequestBuilder
     {
         /// <summary>
@@ -160,7 +161,7 @@ public RequestInformation ToPatchRequestInformation(global::KiotaPosts.Client.Mo
         /// Configuration for the request such as headers, query parameters, and middleware options.
         /// </summary>
         [Obsolete("This class is deprecated. Please use the generic RequestConfiguration class generated by the generator.")]
-        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
         public partial class PostItemRequestBuilderDeleteRequestConfiguration : RequestConfiguration<DefaultQueryParameters>
         {
         }
@@ -168,7 +169,7 @@ public partial class PostItemRequestBuilderDeleteRequestConfiguration : RequestC
         /// Configuration for the request such as headers, query parameters, and middleware options.
         /// </summary>
         [Obsolete("This class is deprecated. Please use the generic RequestConfiguration class generated by the generator.")]
-        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
         public partial class PostItemRequestBuilderGetRequestConfiguration : RequestConfiguration<DefaultQueryParameters>
         {
         }
@@ -176,9 +177,10 @@ public partial class PostItemRequestBuilderGetRequestConfiguration : RequestConf
         /// Configuration for the request such as headers, query parameters, and middleware options.
         /// </summary>
         [Obsolete("This class is deprecated. Please use the generic RequestConfiguration class generated by the generator.")]
-        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
         public partial class PostItemRequestBuilderPatchRequestConfiguration : RequestConfiguration<DefaultQueryParameters>
         {
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/quickstart/dotnet/src/Client/Posts/PostsRequestBuilder.cs b/get-started/quickstart/dotnet/src/Client/Posts/PostsRequestBuilder.cs
index 2c931e612..bb1b67371 100644
--- a/get-started/quickstart/dotnet/src/Client/Posts/PostsRequestBuilder.cs
+++ b/get-started/quickstart/dotnet/src/Client/Posts/PostsRequestBuilder.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using KiotaPosts.Client.Models;
 using KiotaPosts.Client.Posts.Item;
 using Microsoft.Kiota.Abstractions.Extensions;
@@ -14,7 +15,7 @@ namespace KiotaPosts.Client.Posts
     /// <summary>
     /// Builds and executes requests for operations under \posts
     /// </summary>
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     public partial class PostsRequestBuilder : BaseRequestBuilder
     {
         /// <summary>Gets an item from the KiotaPosts.Client.posts.item collection</summary>
@@ -150,7 +151,7 @@ public RequestInformation ToPostRequestInformation(global::KiotaPosts.Client.Mod
         /// <summary>
         /// Get posts
         /// </summary>
-        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
         public partial class PostsRequestBuilderGetQueryParameters 
         {
             /// <summary>Filter results by title</summary>
@@ -171,7 +172,7 @@ public partial class PostsRequestBuilderGetQueryParameters
         /// Configuration for the request such as headers, query parameters, and middleware options.
         /// </summary>
         [Obsolete("This class is deprecated. Please use the generic RequestConfiguration class generated by the generator.")]
-        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
         public partial class PostsRequestBuilderGetRequestConfiguration : RequestConfiguration<global::KiotaPosts.Client.Posts.PostsRequestBuilder.PostsRequestBuilderGetQueryParameters>
         {
         }
@@ -179,9 +180,10 @@ public partial class PostsRequestBuilderGetRequestConfiguration : RequestConfigu
         /// Configuration for the request such as headers, query parameters, and middleware options.
         /// </summary>
         [Obsolete("This class is deprecated. Please use the generic RequestConfiguration class generated by the generator.")]
-        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+        [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
         public partial class PostsRequestBuilderPostRequestConfiguration : RequestConfiguration<DefaultQueryParameters>
         {
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/quickstart/dotnet/src/Client/PostsClient.cs b/get-started/quickstart/dotnet/src/Client/PostsClient.cs
index 8563b1a75..327e1e7b1 100644
--- a/get-started/quickstart/dotnet/src/Client/PostsClient.cs
+++ b/get-started/quickstart/dotnet/src/Client/PostsClient.cs
@@ -1,4 +1,5 @@
 // <auto-generated/>
+#pragma warning disable CS0618
 using KiotaPosts.Client.Posts;
 using Microsoft.Kiota.Abstractions.Extensions;
 using Microsoft.Kiota.Abstractions;
@@ -15,7 +16,7 @@ namespace KiotaPosts.Client
     /// <summary>
     /// The main entry point of the SDK, exposes the configuration and the fluent API.
     /// </summary>
-    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.17.0")]
+    [global::System.CodeDom.Compiler.GeneratedCode("Kiota", "1.18.0")]
     public partial class PostsClient : BaseRequestBuilder
     {
         /// <summary>The posts property</summary>
@@ -44,3 +45,4 @@ public partial class PostsClient : BaseRequestBuilder
         }
     }
 }
+#pragma warning restore CS0618
diff --git a/get-started/quickstart/dotnet/src/Client/kiota-lock.json b/get-started/quickstart/dotnet/src/Client/kiota-lock.json
index 7a46180f2..7ec359dc2 100644
--- a/get-started/quickstart/dotnet/src/Client/kiota-lock.json
+++ b/get-started/quickstart/dotnet/src/Client/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "37FE8D63AB108F248AAA5632A5D37D625F8B9E3A6C439952B4029B0AF49579F337028FE07768B89D6F9210460D77E116F312CB505A43E8EB877131E772464F3B",
   "descriptionLocation": "../../../posts-api.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "PostsClient",
   "clientNamespaceName": "KiotaPosts.Client",
   "language": "CSharp",
diff --git a/get-started/quickstart/go/client/kiota-lock.json b/get-started/quickstart/go/client/kiota-lock.json
index 7aa496134..ca1ece8ff 100644
--- a/get-started/quickstart/go/client/kiota-lock.json
+++ b/get-started/quickstart/go/client/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "37FE8D63AB108F248AAA5632A5D37D625F8B9E3A6C439952B4029B0AF49579F337028FE07768B89D6F9210460D77E116F312CB505A43E8EB877131E772464F3B",
   "descriptionLocation": "../../posts-api.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "PostsClient",
   "clientNamespaceName": "kiota_posts/client",
   "language": "Go",
diff --git a/get-started/quickstart/java/app/src/main/java/kiotaposts/client/kiota-lock.json b/get-started/quickstart/java/app/src/main/java/kiotaposts/client/kiota-lock.json
index 85523e977..4e949dd22 100644
--- a/get-started/quickstart/java/app/src/main/java/kiotaposts/client/kiota-lock.json
+++ b/get-started/quickstart/java/app/src/main/java/kiotaposts/client/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "37FE8D63AB108F248AAA5632A5D37D625F8B9E3A6C439952B4029B0AF49579F337028FE07768B89D6F9210460D77E116F312CB505A43E8EB877131E772464F3B",
   "descriptionLocation": "../../../../../../../posts-api.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "PostsClient",
   "clientNamespaceName": "kiotaposts.client",
   "language": "Java",
diff --git a/get-started/quickstart/php/client/kiota-lock.json b/get-started/quickstart/php/client/kiota-lock.json
index 569f6d122..ebe6db38b 100644
--- a/get-started/quickstart/php/client/kiota-lock.json
+++ b/get-started/quickstart/php/client/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "37FE8D63AB108F248AAA5632A5D37D625F8B9E3A6C439952B4029B0AF49579F337028FE07768B89D6F9210460D77E116F312CB505A43E8EB877131E772464F3B",
   "descriptionLocation": "../../posts-api.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "PostsApiClient",
   "clientNamespaceName": "KiotaPosts\\Client",
   "language": "PHP",
diff --git a/get-started/quickstart/python/client/kiota-lock.json b/get-started/quickstart/python/client/kiota-lock.json
index 941d34f40..467bd9f7d 100644
--- a/get-started/quickstart/python/client/kiota-lock.json
+++ b/get-started/quickstart/python/client/kiota-lock.json
@@ -2,7 +2,7 @@
   "descriptionHash": "37FE8D63AB108F248AAA5632A5D37D625F8B9E3A6C439952B4029B0AF49579F337028FE07768B89D6F9210460D77E116F312CB505A43E8EB877131E772464F3B",
   "descriptionLocation": "../../posts-api.yml",
   "lockFileVersion": "1.0.0",
-  "kiotaVersion": "1.17.0",
+  "kiotaVersion": "1.18.0",
   "clientClassName": "PostsClient",
   "clientNamespaceName": "client",
   "language": "Python",
diff --git a/get-started/quickstart/typescript/client/postsClient.ts b/get-started/quickstart/typescript/client/postsClient.ts
index 5e3a8f325..390ddebbb 100644
--- a/get-started/quickstart/typescript/client/postsClient.ts
+++ b/get-started/quickstart/typescript/client/postsClient.ts
@@ -27,7 +27,7 @@ export function createPostsClient(requestAdapter: RequestAdapter) {
     registerDefaultDeserializer(JsonParseNodeFactory);
     registerDefaultDeserializer(TextParseNodeFactory);
     registerDefaultDeserializer(FormParseNodeFactory);
-    if (requestAdapter.baseUrl === undefined || requestAdapter.baseUrl === "") {
+    if (requestAdapter.baseUrl === undefined || requestAdapter.baseUrl === null || requestAdapter.baseUrl === "") {
         requestAdapter.baseUrl = "https://jsonplaceholder.typicode.com";
     }
     const pathParameters: Record<string, unknown> = {