diff --git a/Extensions/DIExtensions.cs b/Extensions/DIExtensions.cs
index ab802b8..0a82265 100644
--- a/Extensions/DIExtensions.cs
+++ b/Extensions/DIExtensions.cs
@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.OpenApi.Models;
@@ -315,5 +316,29 @@ namespace xCommons.Extensions {
             //
             sources.UseCors (XPolicy.AllowedOrigins);
         }
+
+        /// <summary>
+        /// Register Api V1 Versioning ...
+        /// </summary>
+        /// <param name="services"></param>
+        public static void AddXApiV1Versioning(this IServiceCollection services)
+        {
+            //
+            // Register Api Versioning ...
+            services.AddApiVersioning(opt =>
+            {
+                //
+                // Set Default Api Version ...
+                opt.DefaultApiVersion = new ApiVersion(1, 0);
+
+                //
+                // Set Routing to Default API Version, if Version unspecified ...
+                opt.AssumeDefaultVersionWhenUnspecified = true;
+
+                //
+                // Report All Available Api Versions on Response ...
+                opt.ReportApiVersions = true;
+            });            
+        }
     }
 }
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