diff --git a/Samples/IFU_Management/IFU_Management.nfproj b/Samples/IFU_Management/IFU_Management.nfproj
index 1152e86..69348a0 100644
--- a/Samples/IFU_Management/IFU_Management.nfproj
+++ b/Samples/IFU_Management/IFU_Management.nfproj
@@ -26,7 +26,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.52\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.63\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/Samples/IFU_Management/packages.config b/Samples/IFU_Management/packages.config
index 381af4a..df47d4a 100644
--- a/Samples/IFU_Management/packages.config
+++ b/Samples/IFU_Management/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.63" targetFramework="netnano1.0" />
 </packages>
\ No newline at end of file
diff --git a/Samples/IFU_Management/packages.lock.json b/Samples/IFU_Management/packages.lock.json
new file mode 100644
index 0000000..128a775
--- /dev/null
+++ b/Samples/IFU_Management/packages.lock.json
@@ -0,0 +1,13 @@
+{
+  "version": 1,
+  "dependencies": {
+    ".NETnanoFramework,Version=v1.0": {
+      "nanoFramework.CoreLibrary": {
+        "type": "Direct",
+        "requested": "[2.0.0-preview.63, 2.0.0-preview.63]",
+        "resolved": "2.0.0-preview.63",
+        "contentHash": "M2qEbjY8Uh5jpgrqDD7vJf2YXk3CmGbTHkb/t6w4F/aNyetOYk0LyekdwUSF0kZ+gTNMH/y6CTHBbJfgtMbIeA=="
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/Samples/IFU_SessionUpdate/IFU_SessionUpdate.nfproj b/Samples/IFU_SessionUpdate/IFU_SessionUpdate.nfproj
index 080a8f3..b8f855b 100644
--- a/Samples/IFU_SessionUpdate/IFU_SessionUpdate.nfproj
+++ b/Samples/IFU_SessionUpdate/IFU_SessionUpdate.nfproj
@@ -27,7 +27,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.52\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.63\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/Samples/IFU_SessionUpdate/packages.config b/Samples/IFU_SessionUpdate/packages.config
index 13e0b9f..ada36ce 100644
--- a/Samples/IFU_SessionUpdate/packages.config
+++ b/Samples/IFU_SessionUpdate/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.63" targetFramework="netnano1.0" />
 </packages>
diff --git a/Samples/IFU_SessionUpdate/packages.lock.json b/Samples/IFU_SessionUpdate/packages.lock.json
new file mode 100644
index 0000000..128a775
--- /dev/null
+++ b/Samples/IFU_SessionUpdate/packages.lock.json
@@ -0,0 +1,13 @@
+{
+  "version": 1,
+  "dependencies": {
+    ".NETnanoFramework,Version=v1.0": {
+      "nanoFramework.CoreLibrary": {
+        "type": "Direct",
+        "requested": "[2.0.0-preview.63, 2.0.0-preview.63]",
+        "resolved": "2.0.0-preview.63",
+        "contentHash": "M2qEbjY8Uh5jpgrqDD7vJf2YXk3CmGbTHkb/t6w4F/aNyetOYk0LyekdwUSF0kZ+gTNMH/y6CTHBbJfgtMbIeA=="
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/Samples/IFU_blink-app/IFU-blink-app.nfproj b/Samples/IFU_blink-app/IFU-blink-app.nfproj
index cca884d..9fe32b9 100644
--- a/Samples/IFU_blink-app/IFU-blink-app.nfproj
+++ b/Samples/IFU_blink-app/IFU-blink-app.nfproj
@@ -23,13 +23,13 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib">
-      <HintPath>packages\nanoFramework.CoreLibrary.2.0.0-preview.52\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>packages\nanoFramework.CoreLibrary.2.0.0-preview.63\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Events">
       <HintPath>packages\nanoFramework.Runtime.Events.2.0.0-preview.13\lib\netnano1.0\nanoFramework.Runtime.Events.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Runtime.InFieldUpdate">
-      <HintPath>packages\nanoFramework.Runtime.InFieldUpdate.1.0.13\lib\netnano1.0\nanoFramework.Runtime.InFieldUpdate.dll</HintPath>
+      <HintPath>packages\nanoFramework.Runtime.InFieldUpdate.1.0.19\lib\netnano1.0\nanoFramework.Runtime.InFieldUpdate.dll</HintPath>
     </Reference>
     <Reference Include="System.Device.Gpio">
       <HintPath>packages\nanoFramework.System.Device.Gpio.2.0.0-preview.18\lib\netnano1.0\System.Device.Gpio.dll</HintPath>
diff --git a/Samples/IFU_blink-app/packages.config b/Samples/IFU_blink-app/packages.config
index b138ed9..4626520 100644
--- a/Samples/IFU_blink-app/packages.config
+++ b/Samples/IFU_blink-app/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.63" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Events" version="2.0.0-preview.13" targetFramework="netnano1.0" />
-  <package id="nanoFramework.Runtime.InFieldUpdate" version="1.0.13" targetFramework="netnano1.0" />
+  <package id="nanoFramework.Runtime.InFieldUpdate" version="1.0.19" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Device.Gpio" version="2.0.0-preview.18" targetFramework="netnano1.0" />
 </packages>
\ No newline at end of file
diff --git a/Tests/InFieldUpdateTests/InFieldUpdateTests.nfproj b/Tests/InFieldUpdateTests/InFieldUpdateTests.nfproj
index 556bdee..7c727e8 100644
--- a/Tests/InFieldUpdateTests/InFieldUpdateTests.nfproj
+++ b/Tests/InFieldUpdateTests/InFieldUpdateTests.nfproj
@@ -51,7 +51,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.52\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.63\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.TestFramework">
       <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.64\lib\netnano1.0\nanoFramework.TestFramework.dll</HintPath>
@@ -60,7 +60,6 @@
       <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.64\lib\netnano1.0\nanoFramework.UnitTestLauncher.exe</HintPath>
     </Reference>
   </ItemGroup>
-  <ItemGroup>
   <ItemGroup>
     <None Include="packages.config" />
   </ItemGroup>
@@ -70,4 +69,4 @@
       <ProjectConfigurationsDeclaredAsItems />
     </ProjectCapabilities>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/Tests/InFieldUpdateTests/packages.config b/Tests/InFieldUpdateTests/packages.config
index d0ebfd3..7f7e9e0 100644
--- a/Tests/InFieldUpdateTests/packages.config
+++ b/Tests/InFieldUpdateTests/packages.config
@@ -1,5 +1,5 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.63" targetFramework="netnano1.0" />
   <package id="nanoFramework.TestFramework" version="4.0.0-preview.64" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/InFieldUpdateTests/packages.lock.json b/Tests/InFieldUpdateTests/packages.lock.json
index 39d77dd..503b241 100644
--- a/Tests/InFieldUpdateTests/packages.lock.json
+++ b/Tests/InFieldUpdateTests/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.52, 2.0.0-preview.52]",
-        "resolved": "2.0.0-preview.52",
-        "contentHash": "cV9JEhoc2OV/UL602i5xmEwQpnn/gzVMlDTAIAMRxCNwBKNYLO9U50OkJykpGnO2SULTsmvFqQWEGZiuANBZHw=="
+        "requested": "[2.0.0-preview.63, 2.0.0-preview.63]",
+        "resolved": "2.0.0-preview.63",
+        "contentHash": "M2qEbjY8Uh5jpgrqDD7vJf2YXk3CmGbTHkb/t6w4F/aNyetOYk0LyekdwUSF0kZ+gTNMH/y6CTHBbJfgtMbIeA=="
       },
       "nanoFramework.TestFramework": {
         "type": "Direct",
diff --git a/nanoFramework.Runtime.InFieldUpdate.Provider.nuspec b/nanoFramework.Runtime.InFieldUpdate.Provider.nuspec
index 1f2d8fc..357f867 100644
--- a/nanoFramework.Runtime.InFieldUpdate.Provider.nuspec
+++ b/nanoFramework.Runtime.InFieldUpdate.Provider.nuspec
@@ -20,7 +20,7 @@ Contract for update providers (IUpdateProvider) and agent options (UpdateAgentOp
     <tags>nanoFramework C# csharp netmf netnf ifu update ota</tags>
     <dependencies>
       <group targetFramework=".NETnanoFramework1.0">
-        <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" />
+        <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.63" />
         <dependency id="nanoFramework.Runtime.InFieldUpdate" version="$version$" />
       </group>
     </dependencies>
diff --git a/nanoFramework.Runtime.InFieldUpdate.Provider/nanoFramework.Runtime.InFieldUpdate.Provider.nfproj b/nanoFramework.Runtime.InFieldUpdate.Provider/nanoFramework.Runtime.InFieldUpdate.Provider.nfproj
index 4c2f917..2101e96 100644
--- a/nanoFramework.Runtime.InFieldUpdate.Provider/nanoFramework.Runtime.InFieldUpdate.Provider.nfproj
+++ b/nanoFramework.Runtime.InFieldUpdate.Provider/nanoFramework.Runtime.InFieldUpdate.Provider.nfproj
@@ -50,7 +50,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib">
-      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.52\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.63\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
   </ItemGroup>
   <Import Project="$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets" Condition="Exists('$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets')" />
diff --git a/nanoFramework.Runtime.InFieldUpdate.Provider/packages.config b/nanoFramework.Runtime.InFieldUpdate.Provider/packages.config
index 4a6b678..7484255 100644
--- a/nanoFramework.Runtime.InFieldUpdate.Provider/packages.config
+++ b/nanoFramework.Runtime.InFieldUpdate.Provider/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.63" targetFramework="netnano1.0" />
   <package id="Nerdbank.GitVersioning" version="3.10.94" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/nanoFramework.Runtime.InFieldUpdate.Provider/packages.lock.json b/nanoFramework.Runtime.InFieldUpdate.Provider/packages.lock.json
index 1dc9a3c..0053969 100644
--- a/nanoFramework.Runtime.InFieldUpdate.Provider/packages.lock.json
+++ b/nanoFramework.Runtime.InFieldUpdate.Provider/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.52, 2.0.0-preview.52]",
-        "resolved": "2.0.0-preview.52",
-        "contentHash": "cV9JEhoc2OV/UL602i5xmEwQpnn/gzVMlDTAIAMRxCNwBKNYLO9U50OkJykpGnO2SULTsmvFqQWEGZiuANBZHw=="
+        "requested": "[2.0.0-preview.63, 2.0.0-preview.63]",
+        "resolved": "2.0.0-preview.63",
+        "contentHash": "M2qEbjY8Uh5jpgrqDD7vJf2YXk3CmGbTHkb/t6w4F/aNyetOYk0LyekdwUSF0kZ+gTNMH/y6CTHBbJfgtMbIeA=="
       },
       "Nerdbank.GitVersioning": {
         "type": "Direct",
diff --git a/nanoFramework.Runtime.InFieldUpdate.nuspec b/nanoFramework.Runtime.InFieldUpdate.nuspec
index 51916a6..151cf88 100644
--- a/nanoFramework.Runtime.InFieldUpdate.nuspec
+++ b/nanoFramework.Runtime.InFieldUpdate.nuspec
@@ -16,11 +16,11 @@
     <repository type="git" url="https://github.com/nanoframework/nanoFramework.Runtime.InFieldUpdate" commit="$commit$" />
     <copyright>Copyright (c) .NET Foundation and Contributors</copyright>
     <description>This package includes the nanoFramework Runtime.InFieldUpdate assembly for .NET nanoFramework C# projects.
-This package requires a target with nanoFramework.Runtime.InFieldUpdate v$nativeVersion$ (checksum $checksum$).</description>
-    <tags>nanoFramework C# csharp netmf netnf </tags>
+This package requires a target with nanoFramework.Runtime.InFieldUpdate native contract hash $nativeContractHash$.</description>
+    <tags>nanoFramework C# csharp netmf netnf nfnc-$nativeContractHash$</tags>
     <dependencies>
 	  <group targetFramework=".NETnanoFramework1.0">
-	    <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" />
+	    <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.63" />
 	  </group>
     </dependencies>
   </metadata>
diff --git a/nanoFramework.Runtime.InFieldUpdate/Properties/AssemblyInfo.cs b/nanoFramework.Runtime.InFieldUpdate/Properties/AssemblyInfo.cs
index e8f4fd5..5453e01 100644
--- a/nanoFramework.Runtime.InFieldUpdate/Properties/AssemblyInfo.cs
+++ b/nanoFramework.Runtime.InFieldUpdate/Properties/AssemblyInfo.cs
@@ -14,9 +14,3 @@
 [assembly: AssemblyCompany("nanoFramework Contributors")]
 [assembly: AssemblyProduct("nanoFramework.Runtime.InFieldUpdate")]
 [assembly: AssemblyCopyright("Copyright (c) .NET Foundation and Contributors")]
-
-/////////////////////////////////////////////////////////////////
-// This attribute is mandatory when building Interop libraries //
-// update this whenever the native assembly signature changes  //
-[assembly: AssemblyNativeVersion("100.0.0.3")]
-/////////////////////////////////////////////////////////////////
diff --git a/nanoFramework.Runtime.InFieldUpdate/nanoFramework.Runtime.InFieldUpdate.nfproj b/nanoFramework.Runtime.InFieldUpdate/nanoFramework.Runtime.InFieldUpdate.nfproj
index 3263ea8..64847d6 100644
--- a/nanoFramework.Runtime.InFieldUpdate/nanoFramework.Runtime.InFieldUpdate.nfproj
+++ b/nanoFramework.Runtime.InFieldUpdate/nanoFramework.Runtime.InFieldUpdate.nfproj
@@ -58,7 +58,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib">
-      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.52\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.63\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
   </ItemGroup>
   <Import Project="$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets" Condition="Exists('$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets')" />
diff --git a/nanoFramework.Runtime.InFieldUpdate/packages.config b/nanoFramework.Runtime.InFieldUpdate/packages.config
index 4a6b678..7484255 100644
--- a/nanoFramework.Runtime.InFieldUpdate/packages.config
+++ b/nanoFramework.Runtime.InFieldUpdate/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.63" targetFramework="netnano1.0" />
   <package id="Nerdbank.GitVersioning" version="3.10.94" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/nanoFramework.Runtime.InFieldUpdate/packages.lock.json b/nanoFramework.Runtime.InFieldUpdate/packages.lock.json
index 1dc9a3c..0053969 100644
--- a/nanoFramework.Runtime.InFieldUpdate/packages.lock.json
+++ b/nanoFramework.Runtime.InFieldUpdate/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.52, 2.0.0-preview.52]",
-        "resolved": "2.0.0-preview.52",
-        "contentHash": "cV9JEhoc2OV/UL602i5xmEwQpnn/gzVMlDTAIAMRxCNwBKNYLO9U50OkJykpGnO2SULTsmvFqQWEGZiuANBZHw=="
+        "requested": "[2.0.0-preview.63, 2.0.0-preview.63]",
+        "resolved": "2.0.0-preview.63",
+        "contentHash": "M2qEbjY8Uh5jpgrqDD7vJf2YXk3CmGbTHkb/t6w4F/aNyetOYk0LyekdwUSF0kZ+gTNMH/y6CTHBbJfgtMbIeA=="
       },
       "Nerdbank.GitVersioning": {
         "type": "Direct",