diff --git a/LibGit2Sharp/Core/GitCredentialType.cs b/LibGit2Sharp/Core/GitCredentialType.cs
index 00a7460d9..0ab1273e2 100644
--- a/LibGit2Sharp/Core/GitCredentialType.cs
+++ b/LibGit2Sharp/Core/GitCredentialType.cs
@@ -32,5 +32,20 @@ internal enum GitCredentialType
         /// TODO
         /// </summary>
         SshInteractive = (1 << 4),
+
+        /// <summary>
+        /// Username-only information
+        ///
+        /// If the SSH transport does not know which username to use,
+        /// it will ask via this credential type.
+        /// </summary>
+        Username = (1 << 5),
+
+        /// <summary>
+        /// Credentials read from memory.
+        ///
+        /// Only available for libssh2+OpenSSL for now.
+        /// </summary>
+        SshMemory = (1 << 6),
     }
 }
diff --git a/LibGit2Sharp/Core/GitDiff.cs b/LibGit2Sharp/Core/GitDiff.cs
index ab9f691db..4d1e9768f 100644
--- a/LibGit2Sharp/Core/GitDiff.cs
+++ b/LibGit2Sharp/Core/GitDiff.cs
@@ -363,4 +363,33 @@ internal class GitDiffFindOptions
         // TODO
         public IntPtr SimilarityMetric;
     }
+
+    [Flags]
+    enum GitDiffBinaryType
+    {
+        // There is no binary delta.
+        GIT_DIFF_BINARY_NONE = 0,
+
+        // The binary data is the literal contents of the file. */
+        GIT_DIFF_BINARY_LITERAL,
+
+        // The binary data is the delta from one side to the other. */
+        GIT_DIFF_BINARY_DELTA,
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    internal class GitDiffBinaryFile
+    {
+        public GitDiffBinaryType Type;
+        public IntPtr Data;
+        public UIntPtr DataLen;
+        public UIntPtr InflatedLen;
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    internal class GitDiffBinary
+    {
+        public GitDiffBinaryFile OldFile;
+        public GitDiffBinaryFile NewFile;
+    }
 }
diff --git a/LibGit2Sharp/Core/NativeMethods.cs b/LibGit2Sharp/Core/NativeMethods.cs
index 125822a4c..2590669bf 100644
--- a/LibGit2Sharp/Core/NativeMethods.cs
+++ b/LibGit2Sharp/Core/NativeMethods.cs
@@ -473,6 +473,11 @@ internal delegate int git_diff_line_cb(
             [In] GitDiffLine line,
             IntPtr payload);
 
+        internal delegate int git_diff_binary_cb(
+	        [In] GitDiffDelta delta,
+	        [In] GitDiffBinary binary,
+	        IntPtr payload);
+
         [DllImport(libgit2)]
         internal static extern int git_diff_blobs(
             GitObjectSafeHandle oldBlob,
@@ -481,6 +486,7 @@ internal static extern int git_diff_blobs(
             [MarshalAs(UnmanagedType.CustomMarshaler, MarshalCookie = UniqueId.UniqueIdentifier, MarshalTypeRef = typeof(StrictFilePathMarshaler))] FilePath new_as_path,
             GitDiffOptions options,
             git_diff_file_cb fileCallback,
+            git_diff_binary_cb binaryCallback,
             git_diff_hunk_cb hunkCallback,
             git_diff_line_cb lineCallback,
             IntPtr payload);
@@ -489,6 +495,7 @@ internal static extern int git_diff_blobs(
         internal static extern int git_diff_foreach(
             DiffSafeHandle diff,
             git_diff_file_cb fileCallback,
+            git_diff_binary_cb binaryCallback,
             git_diff_hunk_cb hunkCallback,
             git_diff_line_cb lineCallback,
             IntPtr payload);
diff --git a/LibGit2Sharp/Core/Proxy.cs b/LibGit2Sharp/Core/Proxy.cs
index 5a52f0660..c18c3bfec 100644
--- a/LibGit2Sharp/Core/Proxy.cs
+++ b/LibGit2Sharp/Core/Proxy.cs
@@ -701,7 +701,7 @@ public static void git_diff_blobs(
             {
                 int res = NativeMethods.git_diff_blobs(
                     osw1.ObjectPtr, null, osw2.ObjectPtr, null,
-                    options, fileCallback, hunkCallback, lineCallback, IntPtr.Zero);
+                    options, fileCallback, null, hunkCallback, lineCallback, IntPtr.Zero);
 
                 Ensure.ZeroResult(res);
             }
@@ -713,7 +713,7 @@ public static void git_diff_foreach(
             NativeMethods.git_diff_hunk_cb hunkCallback,
             NativeMethods.git_diff_line_cb lineCallback)
         {
-            int res = NativeMethods.git_diff_foreach(diff, fileCallback, hunkCallback, lineCallback, IntPtr.Zero);
+            int res = NativeMethods.git_diff_foreach(diff, fileCallback, null, hunkCallback, lineCallback, IntPtr.Zero);
             Ensure.ZeroResult(res);
         }
 
diff --git a/LibGit2Sharp/LibGit2Sharp.csproj b/LibGit2Sharp/LibGit2Sharp.csproj
index 721530932..1642d2ab1 100644
--- a/LibGit2Sharp/LibGit2Sharp.csproj
+++ b/LibGit2Sharp/LibGit2Sharp.csproj
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\packages\LibGit2Sharp.NativeBinaries.1.0.51\build\LibGit2Sharp.NativeBinaries.props" Condition="Exists('..\packages\LibGit2Sharp.NativeBinaries.1.0.51\build\LibGit2Sharp.NativeBinaries.props')" />
+  <Import Project="..\packages\LibGit2Sharp.NativeBinaries.1.0.55\build\LibGit2Sharp.NativeBinaries.props" Condition="Exists('..\packages\LibGit2Sharp.NativeBinaries.1.0.55\build\LibGit2Sharp.NativeBinaries.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
@@ -392,7 +392,7 @@
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\packages\LibGit2Sharp.NativeBinaries.1.0.51\build\LibGit2Sharp.NativeBinaries.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\LibGit2Sharp.NativeBinaries.1.0.51\build\LibGit2Sharp.NativeBinaries.props'))" />
+    <Error Condition="!Exists('..\packages\LibGit2Sharp.NativeBinaries.1.0.55\build\LibGit2Sharp.NativeBinaries.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\LibGit2Sharp.NativeBinaries.1.0.55\build\LibGit2Sharp.NativeBinaries.props'))" />
   </Target>
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/LibGit2Sharp/packages.config b/LibGit2Sharp/packages.config
index 6565d1772..659d5e5b7 100644
--- a/LibGit2Sharp/packages.config
+++ b/LibGit2Sharp/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="LibGit2Sharp.NativeBinaries" version="1.0.51" targetFramework="net40" allowedVersions="[1.0.51]" />
+  <package id="LibGit2Sharp.NativeBinaries" version="1.0.55" targetFramework="net40" allowedVersions="[1.0.55]" />
 </packages>
\ No newline at end of file