diff --git a/src/TensorFlowNET.Core/APIs/tf.array.cs b/src/TensorFlowNET.Core/APIs/tf.array.cs
index bd6f6101..3a674e83 100644
--- a/src/TensorFlowNET.Core/APIs/tf.array.cs
+++ b/src/TensorFlowNET.Core/APIs/tf.array.cs
@@ -14,6 +14,7 @@
    limitations under the License.
 ******************************************************************************/
 
+using NumSharp;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -25,7 +26,7 @@ namespace Tensorflow
         /// <summary>
         /// A convenient alias for None, useful for indexing arrays.
         /// </summary>
-        public string newaxis = "";
+        public Slice newaxis = Slice.NewAxis;
 
         /// <summary>
         /// BatchToSpace for N-D tensors of type T.
diff --git a/src/TensorFlowNET.Core/Exceptions/StopIteration.cs b/src/TensorFlowNET.Core/Exceptions/StopIteration.cs
new file mode 100644
index 00000000..d91408a2
--- /dev/null
+++ b/src/TensorFlowNET.Core/Exceptions/StopIteration.cs
@@ -0,0 +1,17 @@
+using System;
+
+namespace Tensorflow
+{
+    public class StopIteration : TensorflowException
+    {
+        public StopIteration() : base()
+        {
+
+        }
+
+        public StopIteration(string message) : base(message)
+        {
+
+        }
+    }
+}
diff --git a/src/TensorFlowNET.Core/TensorFlowNET.Core.csproj b/src/TensorFlowNET.Core/TensorFlowNET.Core.csproj
index 13f56a60..12a4c5f3 100644
--- a/src/TensorFlowNET.Core/TensorFlowNET.Core.csproj
+++ b/src/TensorFlowNET.Core/TensorFlowNET.Core.csproj
@@ -5,7 +5,7 @@
     <AssemblyName>TensorFlow.NET</AssemblyName>
     <RootNamespace>Tensorflow</RootNamespace>
     <TargetTensorFlow>1.14.0</TargetTensorFlow>
-    <Version>0.11.4</Version>
+    <Version>0.11.5</Version>
     <Authors>Haiping Chen, Meinrad Recheis, Eli Belash</Authors>
     <Company>SciSharp STACK</Company>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
@@ -17,7 +17,7 @@
     <PackageTags>TensorFlow, NumSharp, SciSharp, MachineLearning, TensorFlow.NET, C#</PackageTags>
     <Description>Google's TensorFlow full binding in .NET Standard.
 Docs: https://tensorflownet.readthedocs.io</Description>
-    <AssemblyVersion>0.11.4.0</AssemblyVersion>
+    <AssemblyVersion>0.11.5.0</AssemblyVersion>
     <PackageReleaseNotes>Changes since v0.10.0:
 1. Upgrade NumSharp to v0.20.3.
 2. Add DisposableObject class to manage object lifetime.
@@ -31,7 +31,7 @@ Docs: https://tensorflownet.readthedocs.io</Description>
 10. Support n-dim indexing for tensor.
 11. Add RegisterNoGradient</PackageReleaseNotes>
     <LangVersion>7.3</LangVersion>
-    <FileVersion>0.11.4.0</FileVersion>
+    <FileVersion>0.11.5.0</FileVersion>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
     <SignAssembly>true</SignAssembly>
@@ -63,7 +63,7 @@ Docs: https://tensorflownet.readthedocs.io</Description>
 
   <ItemGroup>
     <PackageReference Include="Google.Protobuf" Version="3.5.1" />
-    <PackageReference Include="NumSharp" Version="0.20.3" />
+    <PackageReference Include="NumSharp" Version="0.20.4" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/TensorFlowNET.Core/Tensors/Tensor.Index.cs b/src/TensorFlowNET.Core/Tensors/Tensor.Index.cs
index 552bddfd..d916f624 100644
--- a/src/TensorFlowNET.Core/Tensors/Tensor.Index.cs
+++ b/src/TensorFlowNET.Core/Tensors/Tensor.Index.cs
@@ -27,11 +27,10 @@ namespace Tensorflow
     {
         public Tensor this[int idx] => slice(idx);
 
-        public Tensor this[params string[] slices]
+        public Tensor this[params Slice[] slices]
         {
             get
             {
-                var slice_spec = slices.Select(x => new Slice(x)).ToArray();
                 var begin = new List<int>();
                 var end = new List<int>();
                 var strides = new List<int>();
@@ -41,9 +40,9 @@ namespace Tensorflow
                 var (begin_mask, end_mask) = (0, 0);
                 var ellipsis_mask = 0;
 
-                foreach (var s in slice_spec)
+                foreach (var s in slices)
                 {
-                    if(s.IsNewAxis)
+                    if (s.IsNewAxis)
                     {
                         begin.Add(0);
                         end.Add(0);
@@ -113,6 +112,10 @@ namespace Tensorflow
             }
         }
 
+        public Tensor this[params string[] slices] 
+            => this[slices.Select(x => new Slice(x)).ToArray()];
+
+
         public Tensor slice(Slice slice)
         {
             var slice_spec = new int[] { slice.Start.Value };