diff --git a/.speakeasy/gen.lock b/.speakeasy/gen.lock
index 6c37756..5798b0d 100755
--- a/.speakeasy/gen.lock
+++ b/.speakeasy/gen.lock
@@ -3,17 +3,17 @@ id: 76b4d38c-5441-40d8-8002-c456a3ea1652
 management:
   docChecksum: 85248a8dd6a5cd6fea1b82dfc30249e9
   docVersion: 1.0.0
-  speakeasyVersion: 1.313.0
-  generationVersion: 2.347.8
-  releaseVersion: 0.17.4
-  configChecksum: 35c6c096998276954844755a4be5a0e5
+  speakeasyVersion: 1.314.2
+  generationVersion: 2.349.6
+  releaseVersion: 0.17.5
+  configChecksum: bd4b62f4ad23e5fa766cbf429aabbe01
   repoURL: https://github.com/ding-live/ding-csharp.git
   repoSubDirectory: .
   published: true
 features:
   csharp:
     additionalDependencies: 0.1.0
-    core: 3.9.7
+    core: 3.9.8
     examples: 2.81.3
     flattening: 2.81.2
     globalSecurity: 2.83.4
diff --git a/DingSDK/Ding.cs b/DingSDK/Ding.cs
index 86cbee4..0d5e262 100644
--- a/DingSDK/Ding.cs
+++ b/DingSDK/Ding.cs
@@ -80,10 +80,10 @@ public class Ding: IDing
         public SDKConfig SDKConfiguration { get; private set; }
 
         private const string _language = "csharp";
-        private const string _sdkVersion = "0.17.4";
-        private const string _sdkGenVersion = "2.347.8";
+        private const string _sdkVersion = "0.17.5";
+        private const string _sdkGenVersion = "2.349.6";
         private const string _openapiDocVersion = "1.0.0";
-        private const string _userAgent = "speakeasy-sdk/csharp 0.17.4 2.347.8 1.0.0 DingSDK";
+        private const string _userAgent = "speakeasy-sdk/csharp 0.17.5 2.349.6 1.0.0 DingSDK";
         private string _serverUrl = "";
         private int _serverIndex = 0;
         private ISpeakeasyHttpClient _client;
diff --git a/DingSDK/DingSDK.csproj b/DingSDK/DingSDK.csproj
index 233d433..38362d6 100644
--- a/DingSDK/DingSDK.csproj
+++ b/DingSDK/DingSDK.csproj
@@ -2,20 +2,20 @@
   <PropertyGroup>
     <IsPackable>true</IsPackable>
     <PackageId>DingSDK</PackageId>
-    <Version>0.17.4</Version>
+    <Version>0.17.5</Version>
     <Authors>Ding</Authors>
     <TargetFramework>net5.0</TargetFramework>
     <Nullable>enable</Nullable>
     <PackageReadmeFile>README.md</PackageReadmeFile>
-    <PackageLicenseFile>LICENSE.txt</PackageLicenseFile>
+    <PackageLicenseFile>LICENSE.md</PackageLicenseFile>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <NoWarn>1591</NoWarn>
     <RepositoryUrl>https://github.com/ding-live/ding-csharp</RepositoryUrl>
   </PropertyGroup>
 
   <ItemGroup>
-    <None Include="..\NUGET.md" Pack="true" PackagePath="\README.md"/>
-    <None Include="..\LICENSE.md" Pack="true" PackagePath="\LICENSE.txt"/>
+    <None Include="..\NUGET.md" Pack="true" PackagePath="README.md"/>
+    <None Include="..\LICENSE.md" Pack="true" PackagePath="\"/>
     <None Include="..\docs\**\*" Pack="true" PackagePath="\docs"  CopyToOutputDirectory="PreserveNewest"/>
 
     <PackageReference Include="newtonsoft.json" Version="13.0.3" />
diff --git a/DingSDK/Lookup.cs b/DingSDK/Lookup.cs
index 0892dc6..89f9ddf 100644
--- a/DingSDK/Lookup.cs
+++ b/DingSDK/Lookup.cs
@@ -41,10 +41,10 @@ public class Lookup: ILookup
     {
         public SDKConfig SDKConfiguration { get; private set; }
         private const string _language = "csharp";
-        private const string _sdkVersion = "0.17.4";
-        private const string _sdkGenVersion = "2.347.8";
+        private const string _sdkVersion = "0.17.5";
+        private const string _sdkGenVersion = "2.349.6";
         private const string _openapiDocVersion = "1.0.0";
-        private const string _userAgent = "speakeasy-sdk/csharp 0.17.4 2.347.8 1.0.0 DingSDK";
+        private const string _userAgent = "speakeasy-sdk/csharp 0.17.5 2.349.6 1.0.0 DingSDK";
         private string _serverUrl = "";
         private ISpeakeasyHttpClient _client;
         private Func<Security>? _securitySource;
diff --git a/DingSDK/Otp.cs b/DingSDK/Otp.cs
index 3b72c1e..bb39dfe 100644
--- a/DingSDK/Otp.cs
+++ b/DingSDK/Otp.cs
@@ -56,10 +56,10 @@ public class Otp: IOtp
     {
         public SDKConfig SDKConfiguration { get; private set; }
         private const string _language = "csharp";
-        private const string _sdkVersion = "0.17.4";
-        private const string _sdkGenVersion = "2.347.8";
+        private const string _sdkVersion = "0.17.5";
+        private const string _sdkGenVersion = "2.349.6";
         private const string _openapiDocVersion = "1.0.0";
-        private const string _userAgent = "speakeasy-sdk/csharp 0.17.4 2.347.8 1.0.0 DingSDK";
+        private const string _userAgent = "speakeasy-sdk/csharp 0.17.5 2.349.6 1.0.0 DingSDK";
         private string _serverUrl = "";
         private ISpeakeasyHttpClient _client;
         private Func<Security>? _securitySource;
diff --git a/DingSDK/Utils/ResponseBodyDeserializer.cs b/DingSDK/Utils/ResponseBodyDeserializer.cs
index ba88e9f..b57c6d2 100644
--- a/DingSDK/Utils/ResponseBodyDeserializer.cs
+++ b/DingSDK/Utils/ResponseBodyDeserializer.cs
@@ -12,10 +12,12 @@ namespace DingSDK.Utils
     using System;
     using System.Collections;
     using System.Collections.Generic;
+    using System.Linq;
     using System.Net.Http;
     using System.Reflection;
     using System.Text;
     using Newtonsoft.Json;
+    using Newtonsoft.Json.Linq;
 
 
     internal class ResponseBodyDeserializer
@@ -25,5 +27,96 @@ internal class ResponseBodyDeserializer
         {
             return JsonConvert.DeserializeObject<T>(json, new JsonSerializerSettings(){ NullValueHandling = nullValueHandling, MissingMemberHandling = missingMemberHandling, Converters = Utilities.GetJsonDeserializers(typeof(T))});
         }
+
+        public sealed class MissingMemberException : Exception
+        {
+            public MissingMemberException() : base("Missing member.") { }
+        }
+
+        public sealed class DeserializationException : Exception
+        {
+            public DeserializationException(Type type) : base($"Could not deserialize into {type} type.") { }
+        }
+
+        public static T? DeserializeUndiscriminatedUnionMember<T>(string json)
+        {
+            try
+            {
+                return Deserialize<T>(json, missingMemberHandling: MissingMemberHandling.Error);
+            }
+            catch (Exception ex)
+            {
+                if (ex is Newtonsoft.Json.JsonSerializationException &&
+                    ex.Source == "Newtonsoft.Json" &&
+                    ex.Message.Contains("Could not find member"))
+                {
+                    throw new MissingMemberException();
+                }
+                else if (ex is Newtonsoft.Json.JsonReaderException ||
+                         ex is Newtonsoft.Json.JsonSerializationException
+                )
+                {
+                    throw new DeserializationException(typeof(T));
+                }
+
+                throw;
+            }
+        }
+
+        public static object DeserializeUndiscriminatedUnionFallback(System.Type type, object obj, string propertyName, string json)
+        {
+            MethodInfo? method = typeof(ResponseBodyDeserializer).GetMethod("Deserialize");
+            if (method != null)
+            {
+                MethodInfo generic = method!.MakeGenericMethod(type);
+                var args = new object[] { json, NullValueHandling.Ignore, MissingMemberHandling.Ignore };
+                var value = generic.Invoke(null, args);
+                PropertyInfo? propertyInfo = obj.GetType().GetProperty(propertyName!);
+                if (propertyInfo != null && value != null)
+                {
+                    propertyInfo!.SetValue(obj, value!);
+                    return obj;
+                }
+            }
+
+            throw new DeserializationException(type);
+        }
+
+        public static int MissingJsonProperties(System.Type type, string json)
+        {
+            int missing = 0;
+
+            JObject jo = JObject.Parse(json);
+
+            var jsonPropertyAttributes = type.GetProperties()
+                .Where(prop => Attribute.IsDefined(prop, typeof(JsonPropertyAttribute)))
+                .Select(prop => prop.GetCustomAttribute(typeof(JsonPropertyAttribute)) as JsonPropertyAttribute)
+                .Where(attr => attr != null && attr!.PropertyName != null)
+                .ToList();
+
+            foreach (var attr in jsonPropertyAttributes)
+            {
+                string propertyName = attr!.PropertyName!;
+                if (!jo.TryGetValue(propertyName, out var _value)){
+                    missing++;
+                }
+            }
+
+            return missing;
+        }
+
+        public static int CompareFallbackCandidates(System.Type typeA, System.Type typeB, string json)
+        {
+            var missingA = MissingJsonProperties(typeA, json);
+            var missingB = MissingJsonProperties(typeB, json);
+
+            if (missingA == missingB)
+            {
+                return typeB.GetProperties().Count().CompareTo(typeA.GetProperties().Count());
+            }
+
+            return missingA.CompareTo(missingB);
+        }
+
     }
 }
\ No newline at end of file
diff --git a/NUGET.md b/NUGET.md
index b1c78ed..ced7d0c 100644
--- a/NUGET.md
+++ b/NUGET.md
@@ -1,20 +1,5 @@
 # DingSDK
 
-<div align="left">
-    <a href="https://speakeasyapi.dev/"><img src="https://custom-icon-badges.demolab.com/badge/-Built%20By%20Speakeasy-212015?style=for-the-badge&logoColor=FBE331&logo=speakeasy&labelColor=545454" /></a>
-    <a href="https://opensource.org/licenses/MIT">
-        <img src="https://img.shields.io/badge/License-MIT-blue.svg" style="width: 100px; height: 28px;" />
-    </a>
-</div>
-
-
-<!-- Start Installation [installation] -->
-## Installation
-
-```bash
-dotnet add package DingSDK
-```
-<!-- End Installation [installation] -->
 
 <!-- Start SDK Example Usage [usage] -->
 ## SDK Example Usage
@@ -90,14 +75,6 @@ var res = await sdk.Otp.RetryAsync(req);
 ```
 <!-- End SDK Example Usage [usage] -->
 
-<!-- Start Available Resources and Operations [operations] -->
-## Available Resources and Operations
-
-- [Ding SDK](https:/github.com/ding-live/ding-csharp/blob/main/github/workspace/repo/docs/sdks/ding/README.md#available-operations)
-- [Otp](https:/github.com/ding-live/ding-csharp/blob/main/github/workspace/repo/docs/sdks/otp/README.md#available-operations)
-- [Lookup](https:/github.com/ding-live/ding-csharp/blob/main/github/workspace/repo/docs/sdks/lookup/README.md#available-operations)
-<!-- End Available Resources and Operations [operations] -->
-
 <!-- Start Error Handling [errors] -->
 ## Error Handling
 
diff --git a/RELEASES.md b/RELEASES.md
index b525207..b0e0b07 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -380,4 +380,14 @@ Based on:
 ### Generated
 - [csharp v0.17.4] .
 ### Releases
-- [NuGet v0.17.4] https://www.nuget.org/packages/DingSDK/0.17.4 - .
\ No newline at end of file
+- [NuGet v0.17.4] https://www.nuget.org/packages/DingSDK/0.17.4 - .
+
+## 2024-06-22 00:17:30
+### Changes
+Based on:
+- OpenAPI Doc 1.0.0 
+- Speakeasy CLI 1.314.2 (2.349.6) https://github.com/speakeasy-api/speakeasy
+### Generated
+- [csharp v0.17.5] .
+### Releases
+- [NuGet v0.17.5] https://www.nuget.org/packages/DingSDK/0.17.5 - .
\ No newline at end of file
diff --git a/gen.yaml b/gen.yaml
index 51f186f..98eccad 100644
--- a/gen.yaml
+++ b/gen.yaml
@@ -10,7 +10,7 @@ generation:
   auth:
     oAuth2ClientCredentialsEnabled: false
 csharp:
-  version: 0.17.4
+  version: 0.17.5
   additionalDependencies: []
   author: Ding
   clientServerStatusCodesAsErrors: true