diff --git a/NPPESAPI.net/NPPESAPI.net.csproj b/NPPESAPI.net/NPPESAPI.net.csproj
index fd5b05d..6e7753a 100644
--- a/NPPESAPI.net/NPPESAPI.net.csproj
+++ b/NPPESAPI.net/NPPESAPI.net.csproj
@@ -21,6 +21,7 @@
     <AssemblyVersion>1.1.1.0</AssemblyVersion>
     <FileVersion>1.1.1.0</FileVersion>
     <Version>1.1.1</Version>
+    <PackageReleaseNotes>Support for NPPES API v2.1 and newer url versioning scheme</PackageReleaseNotes>
   </PropertyGroup>
 
   <ItemGroup Condition="$(TargetFramework) == 'net45' or $(TargetFramework) == 'net451'">
diff --git a/NPPESAPI.net/NPPESRequestBuilder.cs b/NPPESAPI.net/NPPESRequestBuilder.cs
index 3cbd67f..24ab910 100644
--- a/NPPESAPI.net/NPPESRequestBuilder.cs
+++ b/NPPESAPI.net/NPPESRequestBuilder.cs
@@ -86,7 +86,7 @@ public NPPESRequestBuilder FirstName(string firstName)
         /// <summary>
         /// Appends or updates the useFirstNameAlias search parameter for the request.
         /// </summary>
-        /// <param name="useFristNameAlieas"></param>
+        /// <param name="useFirstNameAlias"></param>
         /// <returns></returns>
         public NPPESRequestBuilder UseFirstNameAlias(bool useFirstNameAlias)
         {
diff --git a/NPPESAPITest/NPPESApiClientTests.cs b/NPPESAPITest/NPPESApiClientTests.cs
index 3cda67e..114f7f7 100644
--- a/NPPESAPITest/NPPESApiClientTests.cs
+++ b/NPPESAPITest/NPPESApiClientTests.cs
@@ -1,8 +1,7 @@
-using System;
+using Forcura.NPPES;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
 using System.Net;
 using System.Threading.Tasks;
-using Forcura.NPPES;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
 
 namespace NPPESAPITest
 {
diff --git a/NPPESAPITest/NPPESRequestBuilderTests.cs b/NPPESAPITest/NPPESRequestBuilderTests.cs
index 034be76..05592d7 100644
--- a/NPPESAPITest/NPPESRequestBuilderTests.cs
+++ b/NPPESAPITest/NPPESRequestBuilderTests.cs
@@ -1,5 +1,8 @@
 using Forcura.NPPES;
+using Forcura.NPPES.Models;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+using System.Linq;
 
 namespace NPPESAPITest
 {
@@ -24,5 +27,26 @@ public void NPPESRequestBuilder_UpdatesValue()
             Assert.IsNotNull(request);
             Assert.AreEqual(lastNumber, request.Number);
         }
+
+        [TestMethod]
+        public void NPPESRequestBuilder_NoVersionUsesLatest()
+        {
+            var builder = new NPPESRequestBuilder();
+
+            var request = builder.Build();
+            var maxVersion = Enum.GetValues(typeof(NPPESVersion)).Cast<NPPESVersion>().Last();
+
+            Assert.AreEqual(maxVersion, request.Version);
+        }
+
+        [TestMethod]
+        public void NPPESRequestBuilder_VersionProvidedUsesSpecified()
+        {
+            var request = new NPPESRequestBuilder()
+                .Version(NPPESVersion.v1_0)
+                .Build();
+
+            Assert.AreEqual(NPPESVersion.v1_0, request.Version);
+        }
     }
 }