diff --git a/Chapter.01/QuickSort.cs/QuickSort.cs.csproj b/Chapter.01/QuickSort.cs/QuickSort.cs.csproj
index c64de39..6d654a9 100644
--- a/Chapter.01/QuickSort.cs/QuickSort.cs.csproj
+++ b/Chapter.01/QuickSort.cs/QuickSort.cs.csproj
@@ -34,7 +34,10 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Windows.Forms" />
@@ -51,6 +54,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="App.config" />
+    <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="Properties\" />
diff --git a/Chapter.01/QuickSort.cs/packages.config b/Chapter.01/QuickSort.cs/packages.config
new file mode 100644
index 0000000..c440493
--- /dev/null
+++ b/Chapter.01/QuickSort.cs/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
+</packages>
\ No newline at end of file
diff --git a/Chapter.01/QuickSort.fs/QuickSort.fs.fsproj b/Chapter.01/QuickSort.fs/QuickSort.fs.fsproj
index 720762a..dc7d86a 100644
--- a/Chapter.01/QuickSort.fs/QuickSort.fs.fsproj
+++ b/Chapter.01/QuickSort.fs/QuickSort.fs.fsproj
@@ -11,7 +11,7 @@
     <AssemblyName>QuickSort.fs</AssemblyName>
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <Name>QuickSort.fs</Name>
     <TargetFrameworkProfile />
   </PropertyGroup>
@@ -38,28 +38,6 @@
     <DocumentationFile>bin\Release\QuickSort.fs.XML</DocumentationFile>
     <Prefer32Bit>true</Prefer32Bit>
   </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="mscorlib" />
-    <Reference Include="FSharp.Core, Version=$(TargetFSharpCoreVersion), Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-      <Private>True</Private>
-    </Reference>
-    <Reference Include="System" />
-    <Reference Include="System.Core" />
-    <Reference Include="System.Numerics" />
-    <Reference Include="System.Windows.Forms" />
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="QuickSort.fs" />
-    <Compile Include="Program.fs" />
-    <None Include="App.config" />
-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\..\Common\Utilities\Utilities.fsproj">
-      <Name>Utilities</Name>
-      <Project>{2c133fbd-c138-43bb-9066-a9fecb1abe86}</Project>
-      <Private>True</Private>
-    </ProjectReference>
-  </ItemGroup>
   <PropertyGroup>
     <MinimumVisualStudioVersion Condition="'$(MinimumVisualStudioVersion)' == ''">11</MinimumVisualStudioVersion>
   </PropertyGroup>
@@ -76,6 +54,27 @@
     </Otherwise>
   </Choose>
   <Import Project="$(FSharpTargetsPath)" />
+  <ItemGroup>
+    <Compile Include="QuickSort.fs" />
+    <Compile Include="Program.fs" />
+    <None Include="App.config" />
+    <Content Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <Reference Include="FSharp.Core">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+    </Reference>
+    <Reference Include="mscorlib" />
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Numerics" />
+    <Reference Include="System.Windows.Forms" />
+    <ProjectReference Include="..\..\Common\Utilities\Utilities.fsproj">
+      <Name>Utilities</Name>
+      <Project>{2c133fbd-c138-43bb-9066-a9fecb1abe86}</Project>
+      <Private>True</Private>
+    </ProjectReference>
+  </ItemGroup>
   <!-- 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.
   <Target Name="BeforeBuild">
diff --git a/Chapter.01/QuickSort.fs/packages.config b/Chapter.01/QuickSort.fs/packages.config
new file mode 100644
index 0000000..c440493
--- /dev/null
+++ b/Chapter.01/QuickSort.fs/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
+</packages>
\ No newline at end of file
diff --git a/Chapter.02/FunctionalTechniques.cs/FunctionalTechniques.cs.csproj b/Chapter.02/FunctionalTechniques.cs/FunctionalTechniques.cs.csproj
index 6aeacb1..78604da 100644
--- a/Chapter.02/FunctionalTechniques.cs/FunctionalTechniques.cs.csproj
+++ b/Chapter.02/FunctionalTechniques.cs/FunctionalTechniques.cs.csproj
@@ -34,7 +34,10 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
     <Reference Include="System" />
@@ -64,6 +67,7 @@
   <ItemGroup>
     <None Include="App.config" />
     <None Include="google-10000-english\LICENSE.md" />
+    <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\Common\Utilities\Utilities.fsproj">
diff --git a/Chapter.02/FunctionalTechniques.cs/packages.config b/Chapter.02/FunctionalTechniques.cs/packages.config
new file mode 100644
index 0000000..c440493
--- /dev/null
+++ b/Chapter.02/FunctionalTechniques.cs/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
+</packages>
\ No newline at end of file
diff --git a/Chapter.02/FunctionalTechniques.fs/FunctionalTechniques.fs.fsproj b/Chapter.02/FunctionalTechniques.fs/FunctionalTechniques.fs.fsproj
index 8f198cd..d702700 100644
--- a/Chapter.02/FunctionalTechniques.fs/FunctionalTechniques.fs.fsproj
+++ b/Chapter.02/FunctionalTechniques.fs/FunctionalTechniques.fs.fsproj
@@ -11,7 +11,7 @@
     <AssemblyName>FunctionalTechniques.fs</AssemblyName>
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <Name>FunctionalTechniques.fs</Name>
     <TargetFrameworkProfile />
   </PropertyGroup>
@@ -74,6 +74,9 @@
       <HintPath>..\..\packages\FSharp.Collections.ParallelSeq.1.0.2\lib\net40\FSharp.Collections.ParallelSeq.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="FSharp.Core">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+    </Reference>
     <Reference Include="mscorlib" />
     <Reference Include="FSharp.Core, Version=$(TargetFSharpCoreVersion), Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
       <Private>True</Private>
diff --git a/Chapter.02/FunctionalTechniques.fs/packages.config b/Chapter.02/FunctionalTechniques.fs/packages.config
index dd75c3e..eba4432 100644
--- a/Chapter.02/FunctionalTechniques.fs/packages.config
+++ b/Chapter.02/FunctionalTechniques.fs/packages.config
@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="FSharp.Collections.ParallelSeq" version="1.0.2" targetFramework="net46" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
 </packages>
\ No newline at end of file
diff --git a/Chapter.03/FunctionalDataStructures.fs/FunctionalDataStructures.fs.fsproj b/Chapter.03/FunctionalDataStructures.fs/FunctionalDataStructures.fs.fsproj
index 6b34e84..d67490a 100644
--- a/Chapter.03/FunctionalDataStructures.fs/FunctionalDataStructures.fs.fsproj
+++ b/Chapter.03/FunctionalDataStructures.fs/FunctionalDataStructures.fs.fsproj
@@ -11,7 +11,7 @@
     <AssemblyName>DataStructures</AssemblyName>
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <Name>FunctionalDataStructures.fs</Name>
     <TargetFrameworkProfile />
   </PropertyGroup>
@@ -38,15 +38,22 @@
     <DocumentationFile>bin\Release\DataStructures.XML</DocumentationFile>
     <Prefer32Bit>true</Prefer32Bit>
   </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="mscorlib" />
-    <Reference Include="FSharp.Core, Version=$(TargetFSharpCoreVersion), Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-      <Private>True</Private>
-    </Reference>
-    <Reference Include="System" />
-    <Reference Include="System.Core" />
-    <Reference Include="System.Numerics" />
-  </ItemGroup>
+  <PropertyGroup>
+    <MinimumVisualStudioVersion Condition="'$(MinimumVisualStudioVersion)' == ''">11</MinimumVisualStudioVersion>
+  </PropertyGroup>
+  <Choose>
+    <When Condition="'$(VisualStudioVersion)' == '11.0'">
+      <PropertyGroup Condition="Exists('$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets')">
+        <FSharpTargetsPath>$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets</FSharpTargetsPath>
+      </PropertyGroup>
+    </When>
+    <Otherwise>
+      <PropertyGroup Condition="Exists('$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\FSharp\Microsoft.FSharp.Targets')">
+        <FSharpTargetsPath>$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\FSharp\Microsoft.FSharp.Targets</FSharpTargetsPath>
+      </PropertyGroup>
+    </Otherwise>
+  </Choose>
+  <Import Project="$(FSharpTargetsPath)" />
   <ItemGroup>
     <Compile Include="Atom.fs" />
     <Compile Include="FList.fs" />
@@ -57,30 +64,22 @@
     <Compile Include="TCO_CPS.fs" />
     <Compile Include="ParallelCalculator.fs" />
     <None Include="App.config" />
+    <Content Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
+    <Reference Include="FSharp.Core">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+    </Reference>
+    <Reference Include="mscorlib" />
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Numerics" />
     <ProjectReference Include="..\..\Chapter.02\FunctionalTechniques.cs\FunctionalTechniques.cs.csproj">
       <Name>FunctionalTechniques.cs</Name>
       <Project>{22d90ff3-0f4d-468b-aba1-1cd6a82d16da}</Project>
       <Private>True</Private>
     </ProjectReference>
   </ItemGroup>
-  <PropertyGroup>
-    <MinimumVisualStudioVersion Condition="'$(MinimumVisualStudioVersion)' == ''">11</MinimumVisualStudioVersion>
-  </PropertyGroup>
-  <Choose>
-    <When Condition="'$(VisualStudioVersion)' == '11.0'">
-      <PropertyGroup Condition="Exists('$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets')">
-        <FSharpTargetsPath>$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets</FSharpTargetsPath>
-      </PropertyGroup>
-    </When>
-    <Otherwise>
-      <PropertyGroup Condition="Exists('$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\FSharp\Microsoft.FSharp.Targets')">
-        <FSharpTargetsPath>$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\FSharp\Microsoft.FSharp.Targets</FSharpTargetsPath>
-      </PropertyGroup>
-    </Otherwise>
-  </Choose>
-  <Import Project="$(FSharpTargetsPath)" />
   <!-- 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.
   <Target Name="BeforeBuild">
diff --git a/Chapter.03/FunctionalDataStructures.fs/packages.config b/Chapter.03/FunctionalDataStructures.fs/packages.config
new file mode 100644
index 0000000..c440493
--- /dev/null
+++ b/Chapter.03/FunctionalDataStructures.fs/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
+</packages>
\ No newline at end of file
diff --git a/Chapter.04/DataParallelism.Part1.cs/DataParallelism.Part1.cs.csproj b/Chapter.04/DataParallelism.Part1.cs/DataParallelism.Part1.cs.csproj
index 4f87317..f7c7738 100644
--- a/Chapter.04/DataParallelism.Part1.cs/DataParallelism.Part1.cs.csproj
+++ b/Chapter.04/DataParallelism.Part1.cs/DataParallelism.Part1.cs.csproj
@@ -34,7 +34,10 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Drawing" />
@@ -55,6 +58,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="App.config" />
+    <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="Properties\" />
diff --git a/Chapter.04/DataParallelism.Part1.cs/packages.config b/Chapter.04/DataParallelism.Part1.cs/packages.config
new file mode 100644
index 0000000..c440493
--- /dev/null
+++ b/Chapter.04/DataParallelism.Part1.cs/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
+</packages>
\ No newline at end of file
diff --git a/Chapter.04/DataParallelism.Part1.fs/DataParallelism.Part1.fs.fsproj b/Chapter.04/DataParallelism.Part1.fs/DataParallelism.Part1.fs.fsproj
index fd02869..6476337 100644
--- a/Chapter.04/DataParallelism.Part1.fs/DataParallelism.Part1.fs.fsproj
+++ b/Chapter.04/DataParallelism.Part1.fs/DataParallelism.Part1.fs.fsproj
@@ -11,7 +11,7 @@
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     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <Name>DataParallelism.Part1.fs</Name>
     <TargetFrameworkProfile />
   </PropertyGroup>
@@ -66,10 +66,10 @@
       <HintPath>..\..\packages\FSharp.Collections.ParallelSeq.1.0.2\lib\net40\FSharp.Collections.ParallelSeq.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="mscorlib" />
-    <Reference Include="FSharp.Core, Version=$(TargetFSharpCoreVersion), Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-      <Private>True</Private>
+    <Reference Include="FSharp.Core">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
+    <Reference Include="mscorlib" />
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Drawing" />
diff --git a/Chapter.04/DataParallelism.Part1.fs/packages.config b/Chapter.04/DataParallelism.Part1.fs/packages.config
index 21e2b59..1b86d82 100644
--- a/Chapter.04/DataParallelism.Part1.fs/packages.config
+++ b/Chapter.04/DataParallelism.Part1.fs/packages.config
@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="FSharp.Collections.ParallelSeq" version="1.0.2" targetFramework="net461" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
 </packages>
\ No newline at end of file
diff --git a/Chapter.05/DataParallelism.Part2.cs/DataParallelism.Part2.cs.csproj b/Chapter.05/DataParallelism.Part2.cs/DataParallelism.Part2.cs.csproj
index 6b21b37..1c27166 100644
--- a/Chapter.05/DataParallelism.Part2.cs/DataParallelism.Part2.cs.csproj
+++ b/Chapter.05/DataParallelism.Part2.cs/DataParallelism.Part2.cs.csproj
@@ -34,7 +34,10 @@
     <StartupObject>DataParallelism.Part2.CSharp.Program</StartupObject>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Drawing" />
@@ -66,6 +69,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="app.config" />
+    <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="Properties\" />
diff --git a/Chapter.05/DataParallelism.Part2.cs/packages.config b/Chapter.05/DataParallelism.Part2.cs/packages.config
new file mode 100644
index 0000000..c440493
--- /dev/null
+++ b/Chapter.05/DataParallelism.Part2.cs/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
+</packages>
\ No newline at end of file
diff --git a/Chapter.05/DataParallelism.Part2.fs/DataParallelism.Part2.fs.fsproj b/Chapter.05/DataParallelism.Part2.fs/DataParallelism.Part2.fs.fsproj
index 220d23b..e465683 100644
--- a/Chapter.05/DataParallelism.Part2.fs/DataParallelism.Part2.fs.fsproj
+++ b/Chapter.05/DataParallelism.Part2.fs/DataParallelism.Part2.fs.fsproj
@@ -1478,8 +1478,10 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="FSharp.Core">
-      <HintPath>..\..\packages\FSharp.Core.4.2.3\lib\net45\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+      <Private>True</Private>
     </Reference>
+    <Reference Include="FSharp.Core" />
     <Reference Include="FSharp.Data">
       <HintPath>..\..\packages\FSharp.Data.2.3.2\lib\net40\FSharp.Data.dll</HintPath>
       <Private>True</Private>
diff --git a/Chapter.05/DataParallelism.Part2.fs/packages.config b/Chapter.05/DataParallelism.Part2.fs/packages.config
index bcc3c73..91433d9 100644
--- a/Chapter.05/DataParallelism.Part2.fs/packages.config
+++ b/Chapter.05/DataParallelism.Part2.fs/packages.config
@@ -6,7 +6,7 @@
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   <package id="FSharp.Charting" version="0.90.14" targetFramework="net461" />
   <package id="FSharp.Collections.ParallelSeq" version="1.0.2" targetFramework="net461" />
-  <package id="FSharp.Core" version="4.2.3" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="FSharp.Data" version="2.3.2" targetFramework="net461" />
   <package id="FsPickler" version="3.2.0" targetFramework="net461" />
   <package id="Microsoft.NETCore.Platforms" version="1.0.1" targetFramework="net47" />
diff --git a/Chapter.06/KeyPressedEventCombinators.fs/KeyPressedEventCombinators.fs.fsproj b/Chapter.06/KeyPressedEventCombinators.fs/KeyPressedEventCombinators.fs.fsproj
index 9074712..ca10010 100644
--- a/Chapter.06/KeyPressedEventCombinators.fs/KeyPressedEventCombinators.fs.fsproj
+++ b/Chapter.06/KeyPressedEventCombinators.fs/KeyPressedEventCombinators.fs.fsproj
@@ -11,7 +11,7 @@
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     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <Name>KeyPressedEventCombinators.fs</Name>
     <TargetFrameworkProfile />
   </PropertyGroup>
diff --git a/Chapter.06/KeyPressedEventCombinators.fs/packages.config b/Chapter.06/KeyPressedEventCombinators.fs/packages.config
index ec754bb..20b4027 100644
--- a/Chapter.06/KeyPressedEventCombinators.fs/packages.config
+++ b/Chapter.06/KeyPressedEventCombinators.fs/packages.config
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.Reactive" version="3.1.1" targetFramework="net461" />
   <package id="System.Reactive.Core" version="3.1.1" targetFramework="net461" />
   <package id="System.Reactive.Interfaces" version="3.1.1" targetFramework="net461" />
diff --git a/Chapter.06/TwitterEmotionAnalysis.cs/TwitterEmotionAnalysis.cs.csproj b/Chapter.06/TwitterEmotionAnalysis.cs/TwitterEmotionAnalysis.cs.csproj
index e8af7a4..ce8f468 100644
--- a/Chapter.06/TwitterEmotionAnalysis.cs/TwitterEmotionAnalysis.cs.csproj
+++ b/Chapter.06/TwitterEmotionAnalysis.cs/TwitterEmotionAnalysis.cs.csproj
@@ -41,7 +41,10 @@
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     </Reference>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Microsoft.Threading.Tasks, Version=1.0.12.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Microsoft.Bcl.Async.1.0.168\lib\net40\Microsoft.Threading.Tasks.dll</HintPath>
     </Reference>
diff --git a/Chapter.06/TwitterEmotionAnalysis.cs/packages.config b/Chapter.06/TwitterEmotionAnalysis.cs/packages.config
index bc2438c..94740fc 100644
--- a/Chapter.06/TwitterEmotionAnalysis.cs/packages.config
+++ b/Chapter.06/TwitterEmotionAnalysis.cs/packages.config
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Autofac" version="3.5.2" targetFramework="net461" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="Microsoft.Bcl" version="1.1.10" targetFramework="net461" />
   <package id="Microsoft.Bcl.Async" version="1.0.168" targetFramework="net461" />
   <package id="Microsoft.Bcl.Build" version="1.0.21" targetFramework="net461" />
diff --git a/Chapter.06/TwitterEmotionAnalysis.fs/TwitterEmotionAnalysis.fs.fsproj b/Chapter.06/TwitterEmotionAnalysis.fs/TwitterEmotionAnalysis.fs.fsproj
index dc138b7..9bb95ac 100644
--- a/Chapter.06/TwitterEmotionAnalysis.fs/TwitterEmotionAnalysis.fs.fsproj
+++ b/Chapter.06/TwitterEmotionAnalysis.fs/TwitterEmotionAnalysis.fs.fsproj
@@ -77,6 +77,9 @@
     <Reference Include="FSharp.Charting">
       <HintPath>..\..\packages\FSharp.Charting.0.90.14\lib\net40\FSharp.Charting.dll</HintPath>
     </Reference>
+    <Reference Include="FSharp.Core">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+    </Reference>
     <Reference Include="IKVM.AWT.WinForms">
       <HintPath>..\..\packages\IKVM.8.1.5717.0\lib\IKVM.AWT.WinForms.dll</HintPath>
     </Reference>
diff --git a/Chapter.06/TwitterEmotionAnalysis.fs/packages.config b/Chapter.06/TwitterEmotionAnalysis.fs/packages.config
index 66fa281..2895bc3 100644
--- a/Chapter.06/TwitterEmotionAnalysis.fs/packages.config
+++ b/Chapter.06/TwitterEmotionAnalysis.fs/packages.config
@@ -2,6 +2,7 @@
 <packages>
   <package id="Autofac" version="4.4.0" targetFramework="net461" />
   <package id="FSharp.Charting" version="0.90.14" targetFramework="net461" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="IKVM" version="8.1.5717.0" targetFramework="net461" />
   <package id="Microsoft.Bcl" version="1.1.10" targetFramework="net461" />
   <package id="Microsoft.Bcl.Async" version="1.0.168" targetFramework="net461" />
diff --git a/Chapter.07/FaceDetection/FaceDetection.cs.csproj b/Chapter.07/FaceDetection/FaceDetection.cs.csproj
index f855585..91cd543 100644
--- a/Chapter.07/FaceDetection/FaceDetection.cs.csproj
+++ b/Chapter.07/FaceDetection/FaceDetection.cs.csproj
@@ -47,7 +47,10 @@
     <Reference Include="Emgu.CV.World, Version=3.1.0.2282, Culture=neutral, PublicKeyToken=7281126722ab4438, processorArchitecture=MSIL">
       <HintPath>..\..\packages\EmguCV.3.1.0.1\lib\net30\Emgu.CV.World.dll</HintPath>
     </Reference>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="OpenTK, Version=2.0.0.0, Culture=neutral, PublicKeyToken=bad199fe84eb3df4, processorArchitecture=MSIL">
       <HintPath>..\..\packages\OpenTK.2.0.0\lib\net20\OpenTK.dll</HintPath>
     </Reference>
diff --git a/Chapter.07/FaceDetection/packages.config b/Chapter.07/FaceDetection/packages.config
index 21806dc..82baf15 100644
--- a/Chapter.07/FaceDetection/packages.config
+++ b/Chapter.07/FaceDetection/packages.config
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="EmguCV" version="3.1.0.1" targetFramework="net461" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="OpenTK" version="2.0.0" targetFramework="net461" />
   <package id="OpenTK.GLControl" version="1.1.2349.61993" targetFramework="net461" />
   <package id="ZedGraph" version="5.1.7" targetFramework="net461" />
diff --git a/Chapter.07/ImageProcessing.fs/ImageProcessing.fs.fsproj b/Chapter.07/ImageProcessing.fs/ImageProcessing.fs.fsproj
index 1cde31a..1a8833e 100644
--- a/Chapter.07/ImageProcessing.fs/ImageProcessing.fs.fsproj
+++ b/Chapter.07/ImageProcessing.fs/ImageProcessing.fs.fsproj
@@ -11,7 +11,7 @@
     <AssemblyName>ImageProcessing</AssemblyName>
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <Name>ImageProcessing.fs</Name>
     <TargetFrameworkProfile />
   </PropertyGroup>
@@ -87,6 +87,7 @@
     <Content Include="App.config">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>
+    <Content Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib" />
diff --git a/Chapter.07/ImageProcessing.fs/packages.config b/Chapter.07/ImageProcessing.fs/packages.config
new file mode 100644
index 0000000..c440493
--- /dev/null
+++ b/Chapter.07/ImageProcessing.fs/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
+</packages>
\ No newline at end of file
diff --git a/Chapter.07/Pipeline.cs/Pipeline.cs.csproj b/Chapter.07/Pipeline.cs/Pipeline.cs.csproj
index 53163f1..a9f3d91 100644
--- a/Chapter.07/Pipeline.cs/Pipeline.cs.csproj
+++ b/Chapter.07/Pipeline.cs/Pipeline.cs.csproj
@@ -34,7 +34,10 @@
     <StartupObject>Pipeline.Program</StartupObject>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Windows" />
@@ -53,6 +56,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="app.config" />
+    <None Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="Properties\" />
diff --git a/Chapter.07/Pipeline.cs/packages.config b/Chapter.07/Pipeline.cs/packages.config
new file mode 100644
index 0000000..c440493
--- /dev/null
+++ b/Chapter.07/Pipeline.cs/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
+</packages>
\ No newline at end of file
diff --git a/Chapter.07/Pipeline.fs/Pipeline.fs.fsproj b/Chapter.07/Pipeline.fs/Pipeline.fs.fsproj
index 5fb6e63..4bec9fe 100644
--- a/Chapter.07/Pipeline.fs/Pipeline.fs.fsproj
+++ b/Chapter.07/Pipeline.fs/Pipeline.fs.fsproj
@@ -10,7 +10,7 @@
     <RootNamespace>FsPipeline</RootNamespace>
     <AssemblyName>FsPipeline.fs</AssemblyName>
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Name>Pipeline.fs</Name>
     <TargetFrameworkProfile />
@@ -34,28 +34,6 @@
     <WarningLevel>3</WarningLevel>
     <DocumentationFile>bin\Release\FsPipeline.XML</DocumentationFile>
   </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="mscorlib" />
-    <Reference Include="FSharp.Core, Version=$(TargetFSharpCoreVersion), Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-      <Private>True</Private>
-    </Reference>
-    <Reference Include="System" />
-    <Reference Include="System.Core" />
-    <Reference Include="System.Numerics" />
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="PipelineFunc.fs" />
-    <Compile Include="TaskExtension.fs" />
-    <Compile Include="FSharpFuncUtil.fs" />
-    <Compile Include="Pipeline.fs" />
-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\..\Common\Functional.cs\Functional.cs.csproj">
-      <Name>Functional.cs</Name>
-      <Project>{24d84c19-b173-4635-91a6-42328bc694ce}</Project>
-      <Private>True</Private>
-    </ProjectReference>
-  </ItemGroup>
   <PropertyGroup>
     <MinimumVisualStudioVersion Condition="'$(MinimumVisualStudioVersion)' == ''">11</MinimumVisualStudioVersion>
   </PropertyGroup>
@@ -72,6 +50,27 @@
     </Otherwise>
   </Choose>
   <Import Project="$(FSharpTargetsPath)" />
+  <ItemGroup>
+    <Compile Include="PipelineFunc.fs" />
+    <Compile Include="TaskExtension.fs" />
+    <Compile Include="FSharpFuncUtil.fs" />
+    <Compile Include="Pipeline.fs" />
+    <Content Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <Reference Include="FSharp.Core">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+    </Reference>
+    <Reference Include="mscorlib" />
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Numerics" />
+    <ProjectReference Include="..\..\Common\Functional.cs\Functional.cs.csproj">
+      <Name>Functional.cs</Name>
+      <Project>{24d84c19-b173-4635-91a6-42328bc694ce}</Project>
+      <Private>True</Private>
+    </ProjectReference>
+  </ItemGroup>
   <!-- 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.
   <Target Name="BeforeBuild">
diff --git a/Chapter.07/Pipeline.fs/packages.config b/Chapter.07/Pipeline.fs/packages.config
new file mode 100644
index 0000000..c440493
--- /dev/null
+++ b/Chapter.07/Pipeline.fs/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
+</packages>
\ No newline at end of file
diff --git a/Chapter.08/Asynchronous.cs/Asynchronous.cs.csproj b/Chapter.08/Asynchronous.cs/Asynchronous.cs.csproj
index dafced1..4fc82dc 100644
--- a/Chapter.08/Asynchronous.cs/Asynchronous.cs.csproj
+++ b/Chapter.08/Asynchronous.cs/Asynchronous.cs.csproj
@@ -34,8 +34,8 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\FSharp.Core.4.2.3\lib\net45\FSharp.Core.dll</HintPath>
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
diff --git a/Chapter.08/Asynchronous.cs/packages.config b/Chapter.08/Asynchronous.cs/packages.config
index f78aa97..c440493 100644
--- a/Chapter.08/Asynchronous.cs/packages.config
+++ b/Chapter.08/Asynchronous.cs/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="FSharp.Core" version="4.2.3" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
 </packages>
\ No newline at end of file
diff --git a/Chapter.08/Asynchronous.fs/Asynchronous.fs.fsproj b/Chapter.08/Asynchronous.fs/Asynchronous.fs.fsproj
index c2d8f32..a52efab 100644
--- a/Chapter.08/Asynchronous.fs/Asynchronous.fs.fsproj
+++ b/Chapter.08/Asynchronous.fs/Asynchronous.fs.fsproj
@@ -11,7 +11,7 @@
     <AssemblyName>Asynchronous.fs</AssemblyName>
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <Name>Asynchronous.fs</Name>
     <TargetFrameworkProfile />
   </PropertyGroup>
@@ -38,27 +38,6 @@
     <DocumentationFile>bin\Release\Asynchronous.fs.XML</DocumentationFile>
     <Prefer32Bit>true</Prefer32Bit>
   </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="mscorlib" />
-    <Reference Include="FSharp.Core, Version=$(TargetFSharpCoreVersion), Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-      <Private>True</Private>
-    </Reference>
-    <Reference Include="System" />
-    <Reference Include="System.Core" />
-    <Reference Include="System.Numerics" />
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="AsyncModule.fs" />
-    <Compile Include="Program.fs" />
-    <None Include="App.config" />
-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\..\Common\Utilities\Utilities.fsproj">
-      <Name>Utilities</Name>
-      <Project>{2c133fbd-c138-43bb-9066-a9fecb1abe86}</Project>
-      <Private>True</Private>
-    </ProjectReference>
-  </ItemGroup>
   <PropertyGroup>
     <MinimumVisualStudioVersion Condition="'$(MinimumVisualStudioVersion)' == ''">11</MinimumVisualStudioVersion>
   </PropertyGroup>
@@ -75,6 +54,26 @@
     </Otherwise>
   </Choose>
   <Import Project="$(FSharpTargetsPath)" />
+  <ItemGroup>
+    <Compile Include="AsyncModule.fs" />
+    <Compile Include="Program.fs" />
+    <None Include="App.config" />
+    <Content Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <Reference Include="FSharp.Core">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+    </Reference>
+    <Reference Include="mscorlib" />
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Numerics" />
+    <ProjectReference Include="..\..\Common\Utilities\Utilities.fsproj">
+      <Name>Utilities</Name>
+      <Project>{2c133fbd-c138-43bb-9066-a9fecb1abe86}</Project>
+      <Private>True</Private>
+    </ProjectReference>
+  </ItemGroup>
   <!-- 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.
   <Target Name="BeforeBuild">
diff --git a/Chapter.08/Asynchronous.fs/packages.config b/Chapter.08/Asynchronous.fs/packages.config
new file mode 100644
index 0000000..c440493
--- /dev/null
+++ b/Chapter.08/Asynchronous.fs/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
+</packages>
\ No newline at end of file
diff --git a/Chapter.08/StockAnalyzer.CS/StockAnalyzer.CS.csproj b/Chapter.08/StockAnalyzer.CS/StockAnalyzer.CS.csproj
index 5df248f..06447cd 100644
--- a/Chapter.08/StockAnalyzer.CS/StockAnalyzer.CS.csproj
+++ b/Chapter.08/StockAnalyzer.CS/StockAnalyzer.CS.csproj
@@ -34,7 +34,10 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="PresentationFramework" />
     <Reference Include="System" />
     <Reference Include="System.Core" />
@@ -61,6 +64,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="app.config" />
+    <None Include="packages.config" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
diff --git a/Chapter.08/StockAnalyzer.CS/packages.config b/Chapter.08/StockAnalyzer.CS/packages.config
new file mode 100644
index 0000000..c440493
--- /dev/null
+++ b/Chapter.08/StockAnalyzer.CS/packages.config
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
+</packages>
\ No newline at end of file
diff --git a/Chapter.08/StockAnalyzer.FS/StockAnalyzer.FS.fsproj b/Chapter.08/StockAnalyzer.FS/StockAnalyzer.FS.fsproj
index 2e5bb42..e815d8c 100644
--- a/Chapter.08/StockAnalyzer.FS/StockAnalyzer.FS.fsproj
+++ b/Chapter.08/StockAnalyzer.FS/StockAnalyzer.FS.fsproj
@@ -79,12 +79,9 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="FSharp.Core">
-      <HintPath>..\..\packages\FSharp.Core.4.2.3\lib\net45\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
     <Reference Include="mscorlib" />
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-      <Private>True</Private>
-    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Drawing" />
diff --git a/Chapter.08/StockAnalyzer.FS/packages.config b/Chapter.08/StockAnalyzer.FS/packages.config
index 09cbf34..9256ea5 100644
--- a/Chapter.08/StockAnalyzer.FS/packages.config
+++ b/Chapter.08/StockAnalyzer.FS/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="FSharp.Charting" version="0.90.14" targetFramework="net461" />
-  <package id="FSharp.Core" version="4.2.3" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="FSharp.Data" version="2.3.2" targetFramework="net461" />
 </packages>
\ No newline at end of file
diff --git a/Chapter.09/AsyncBlobCloud.CS/AsyncBlobCloud.CS.csproj b/Chapter.09/AsyncBlobCloud.CS/AsyncBlobCloud.CS.csproj
index 650fd49..09ef750 100644
--- a/Chapter.09/AsyncBlobCloud.CS/AsyncBlobCloud.CS.csproj
+++ b/Chapter.09/AsyncBlobCloud.CS/AsyncBlobCloud.CS.csproj
@@ -37,7 +37,10 @@
     <StartupObject />
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Microsoft.Azure.KeyVault.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Microsoft.Azure.KeyVault.Core.1.0.0\lib\net40\Microsoft.Azure.KeyVault.Core.dll</HintPath>
       <Private>True</Private>
diff --git a/Chapter.09/AsyncBlobCloud.CS/packages.config b/Chapter.09/AsyncBlobCloud.CS/packages.config
index 7c7a660..de24e04 100644
--- a/Chapter.09/AsyncBlobCloud.CS/packages.config
+++ b/Chapter.09/AsyncBlobCloud.CS/packages.config
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="Microsoft.Azure.KeyVault.Core" version="1.0.0" targetFramework="net461" />
   <package id="Microsoft.Data.Edm" version="5.8.2" targetFramework="net461" />
   <package id="Microsoft.Data.OData" version="5.8.2" targetFramework="net461" />
diff --git a/Chapter.09/AsyncBlobCloud.FS/AsyncBlobCloud.FS.fsproj b/Chapter.09/AsyncBlobCloud.FS/AsyncBlobCloud.FS.fsproj
index 4d75b59..ab26834 100644
--- a/Chapter.09/AsyncBlobCloud.FS/AsyncBlobCloud.FS.fsproj
+++ b/Chapter.09/AsyncBlobCloud.FS/AsyncBlobCloud.FS.fsproj
@@ -11,7 +11,7 @@
     <AssemblyName>AsyncBlobCloud.FS</AssemblyName>
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <Name>AsyncBlobCloud.fs</Name>
     <TargetFrameworkProfile />
   </PropertyGroup>
@@ -66,6 +66,9 @@
     <Content Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
+    <Reference Include="FSharp.Core">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+    </Reference>
     <Reference Include="FSharp.PowerPack">
       <HintPath>..\..\packages\FSPowerPack.Core.Community.2.0.0.0\Lib\Net40\FSharp.PowerPack.dll</HintPath>
     </Reference>
@@ -93,9 +96,6 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="mscorlib" />
-    <Reference Include="FSharp.Core, Version=$(TargetFSharpCoreVersion), Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-      <Private>True</Private>
-    </Reference>
     <Reference Include="Newtonsoft.Json">
       <HintPath>..\..\packages\Newtonsoft.Json.6.0.8\lib\net45\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
diff --git a/Chapter.09/AsyncBlobCloud.FS/packages.config b/Chapter.09/AsyncBlobCloud.FS/packages.config
index 34d469a..80d3246 100644
--- a/Chapter.09/AsyncBlobCloud.FS/packages.config
+++ b/Chapter.09/AsyncBlobCloud.FS/packages.config
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="FSPowerPack.Core.Community" version="2.0.0.0" targetFramework="net47" />
   <package id="FSPowerPack.Parallel.Seq.Community" version="3.0.0.0" targetFramework="net47" />
   <package id="Microsoft.Azure.KeyVault.Core" version="1.0.0" targetFramework="net461" />
diff --git a/Chapter.10/Combinators.cs/Combinators.cs.csproj b/Chapter.10/Combinators.cs/Combinators.cs.csproj
index e0e53de..f35060d 100644
--- a/Chapter.10/Combinators.cs/Combinators.cs.csproj
+++ b/Chapter.10/Combinators.cs/Combinators.cs.csproj
@@ -35,8 +35,8 @@
     <StartupObject>Combinators.cs.Program</StartupObject>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\FSharp.Core.4.1.17\lib\net45\FSharp.Core.dll</HintPath>
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="Microsoft.Azure.KeyVault.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
diff --git a/Chapter.10/Combinators.cs/Program.cs b/Chapter.10/Combinators.cs/Program.cs
index bfe2cbd..79834c8 100644
--- a/Chapter.10/Combinators.cs/Program.cs
+++ b/Chapter.10/Combinators.cs/Program.cs
@@ -1,22 +1,16 @@
-using Functional;
-using Microsoft.WindowsAzure.Storage;
+using Microsoft.WindowsAzure.Storage;
 using Microsoft.WindowsAzure.Storage.Blob;
 using System;
-using System.Collections.Generic;
-using System.Diagnostics;
 using System.Drawing;
 using System.IO;
-using System.Linq;
-using System.Text;
-using System.Threading;
 using System.Threading.Tasks;
 using static Functional.OptionHelpers;
-using Functional.Tasks;
 using System.Drawing.Drawing2D;
-using Functional.Async;
-using Functional.IO;
 using File = Functional.IO.File;
 using static Combinators.cs.Helpers;
+using Functional;
+using Functional.Tasks;
+using static Functional.Async.AsyncEx;
 
 namespace Combinators.cs
 {
@@ -63,7 +57,7 @@ static async Task RunDownloadImage()   // #C
 
         static async Task RunDownloadImageWithRetry()   // #C
         {
-            Image image = await AsyncEx.Retry(async () =>
+            Image image = await Retry(async () =>
                                 await DownloadImageAsync("Bugghina001.jpg")
                             .Otherwise(async () =>
                                 await DownloadImageAsync("Bugghina002.jpg")),
diff --git a/Chapter.10/Combinators.cs/packages.config b/Chapter.10/Combinators.cs/packages.config
index ce4b089..76a274f 100644
--- a/Chapter.10/Combinators.cs/packages.config
+++ b/Chapter.10/Combinators.cs/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="FSharp.Core" version="4.1.17" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="Microsoft.Azure.KeyVault.Core" version="1.0.0" targetFramework="net47" />
   <package id="Microsoft.Data.Edm" version="5.8.2" targetFramework="net47" />
   <package id="Microsoft.Data.OData" version="5.8.2" targetFramework="net47" />
diff --git a/Chapter.10/Combinators.fs/Combinators.fs.fsproj b/Chapter.10/Combinators.fs/Combinators.fs.fsproj
index 1a67273..b33c7bb 100644
--- a/Chapter.10/Combinators.fs/Combinators.fs.fsproj
+++ b/Chapter.10/Combinators.fs/Combinators.fs.fsproj
@@ -84,7 +84,7 @@
       <Private>True</Private>
     </ProjectReference>
     <Reference Include="FSharp.Core">
-      <HintPath>..\..\packages\FSharp.Core.4.1.17\lib\net45\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
     <Reference Include="FSharp.PowerPack">
       <HintPath>..\..\packages\FSPowerPack.Core.Community.2.0.0.0\Lib\Net40\FSharp.PowerPack.dll</HintPath>
diff --git a/Chapter.10/Combinators.fs/packages.config b/Chapter.10/Combinators.fs/packages.config
index 04a2a34..99b1bb5 100644
--- a/Chapter.10/Combinators.fs/packages.config
+++ b/Chapter.10/Combinators.fs/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="FSharp.Core" version="4.1.17" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="FSPowerPack.Core.Community" version="2.0.0.0" targetFramework="net47" />
   <package id="FSPowerPack.Parallel.Seq.Community" version="3.0.0.0" targetFramework="net47" />
   <package id="Microsoft.Azure.KeyVault.Core" version="1.0.0" targetFramework="net47" />
diff --git a/Chapter.11/GameOfLife/GameOfLife.fsproj b/Chapter.11/GameOfLife/GameOfLife.fsproj
index 27422fa..62808bb 100644
--- a/Chapter.11/GameOfLife/GameOfLife.fsproj
+++ b/Chapter.11/GameOfLife/GameOfLife.fsproj
@@ -66,7 +66,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="FSharp.Core">
-      <HintPath>..\packages\FSharp.Core.4.1.0\lib\net40\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
     <Reference Include="mscorlib" />
     <Reference Include="PresentationCore" />
diff --git a/Chapter.11/GameOfLife/packages.config b/Chapter.11/GameOfLife/packages.config
index 740f020..49a4ad9 100644
--- a/Chapter.11/GameOfLife/packages.config
+++ b/Chapter.11/GameOfLife/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="FSharp.Core" version="4.1.0" targetFramework="net461" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.ValueTuple" version="4.3.1" targetFramework="net47" />
 </packages>
\ No newline at end of file
diff --git a/Chapter.11/ReactiveAgent/ReactiveAgent.FS.fsproj b/Chapter.11/ReactiveAgent/ReactiveAgent.FS.fsproj
index eb56ccc..d66c39c 100644
--- a/Chapter.11/ReactiveAgent/ReactiveAgent.FS.fsproj
+++ b/Chapter.11/ReactiveAgent/ReactiveAgent.FS.fsproj
@@ -10,7 +10,7 @@
     <RootNamespace>ReactiveAgent</RootNamespace>
     <AssemblyName>ReactiveAgent</AssemblyName>
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Name>ReactiveAgent.FS</Name>
     <TargetFrameworkProfile />
@@ -58,10 +58,10 @@
     <Content Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib" />
-    <Reference Include="FSharp.Core, Version=$(TargetFSharpCoreVersion), Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-      <Private>True</Private>
+    <Reference Include="FSharp.Core">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
+    <Reference Include="mscorlib" />
     <Reference Include="System" />
     <Reference Include="System.Configuration" />
     <Reference Include="System.Core" />
diff --git a/Chapter.11/ReactiveAgent/packages.config b/Chapter.11/ReactiveAgent/packages.config
index 602ef83..95d7d47 100644
--- a/Chapter.11/ReactiveAgent/packages.config
+++ b/Chapter.11/ReactiveAgent/packages.config
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="Microsoft.Tpl.Dataflow" version="4.5.24" targetFramework="net46" />
   <package id="System.Reactive" version="3.1.1" targetFramework="net46" />
   <package id="System.Reactive.Core" version="3.1.1" targetFramework="net46" />
diff --git a/Chapter.12/ParallelCompressionDataFlowAgent/App.config b/Chapter.12/ParallelCompressionDataFlowAgent/App.config
index 174c45a..856e0e8 100644
--- a/Chapter.12/ParallelCompressionDataFlowAgent/App.config
+++ b/Chapter.12/ParallelCompressionDataFlowAgent/App.config
@@ -3,4 +3,32 @@
     <startup>
         <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
     </startup>
+  <runtime>
+    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
+      <dependentAssembly>
+        <assemblyIdentity name="FSharp.Core" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.4.3.0" newVersion="4.4.3.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Reactive.Core" publicKeyToken="94bc3704cddfc263" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-3.0.3000.0" newVersion="3.0.3000.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime.Extensions" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Linq" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Reflection" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+    </assemblyBinding>
+  </runtime>
 </configuration>
\ No newline at end of file
diff --git a/Chapter.12/ParallelCompressionDataFlowAgent/ParallelCompressionDataFlowAgent.csproj b/Chapter.12/ParallelCompressionDataFlowAgent/ParallelCompressionDataFlowAgent.csproj
index 946ffd8..86b422b 100644
--- a/Chapter.12/ParallelCompressionDataFlowAgent/ParallelCompressionDataFlowAgent.csproj
+++ b/Chapter.12/ParallelCompressionDataFlowAgent/ParallelCompressionDataFlowAgent.csproj
@@ -35,8 +35,8 @@
     <Reference Include="FSharp.Charting, Version=0.91.1.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\..\packages\FSharp.Charting.0.91.1\lib\net45\FSharp.Charting.dll</HintPath>
     </Reference>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\FSharp.Core.4.2.3\lib\net45\FSharp.Core.dll</HintPath>
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
diff --git a/Chapter.12/ParallelCompressionDataFlowAgent/packages.config b/Chapter.12/ParallelCompressionDataFlowAgent/packages.config
index a7d728e..221678e 100644
--- a/Chapter.12/ParallelCompressionDataFlowAgent/packages.config
+++ b/Chapter.12/ParallelCompressionDataFlowAgent/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="FSharp.Charting" version="0.91.1" targetFramework="net47" />
-  <package id="FSharp.Core" version="4.2.3" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="Microsoft.Tpl.Dataflow" version="4.5.24" targetFramework="net47" />
   <package id="System.Reactive" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Core" version="3.1.1" targetFramework="net47" />
diff --git a/Chapter.12/ReactiveAgent.CS/App.config b/Chapter.12/ReactiveAgent.CS/App.config
index 8af2d1d..181fd08 100644
--- a/Chapter.12/ReactiveAgent.CS/App.config
+++ b/Chapter.12/ReactiveAgent.CS/App.config
@@ -3,4 +3,32 @@
   <startup>
     <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
   </startup>
+  <runtime>
+    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
+      <dependentAssembly>
+        <assemblyIdentity name="FSharp.Core" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.4.3.0" newVersion="4.4.3.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Linq" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime.Extensions" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Reactive.Core" publicKeyToken="94bc3704cddfc263" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-3.0.3000.0" newVersion="3.0.3000.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Reflection" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+    </assemblyBinding>
+  </runtime>
 </configuration>
diff --git a/Chapter.12/ReactiveAgent.CS/ReactiveAgent.CS.csproj b/Chapter.12/ReactiveAgent.CS/ReactiveAgent.CS.csproj
index 833aa37..c233e07 100644
--- a/Chapter.12/ReactiveAgent.CS/ReactiveAgent.CS.csproj
+++ b/Chapter.12/ReactiveAgent.CS/ReactiveAgent.CS.csproj
@@ -40,8 +40,8 @@
     <Reference Include="FSharp.Charting, Version=0.91.1.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\..\packages\FSharp.Charting.0.91.1\lib\net45\FSharp.Charting.dll</HintPath>
     </Reference>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\FSharp.Core.4.2.3\lib\net45\FSharp.Core.dll</HintPath>
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
diff --git a/Chapter.12/ReactiveAgent.CS/packages.config b/Chapter.12/ReactiveAgent.CS/packages.config
index 5a34ec7..52c2ce0 100644
--- a/Chapter.12/ReactiveAgent.CS/packages.config
+++ b/Chapter.12/ReactiveAgent.CS/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="FSharp.Charting" version="0.91.1" targetFramework="net47" />
-  <package id="FSharp.Core" version="4.2.3" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="Microsoft.Tpl.Dataflow" version="4.5.24" targetFramework="net46" />
   <package id="System.Reactive" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Core" version="3.1.1" targetFramework="net47" />
diff --git a/Chapter.13/AgentMultipleReadsOneWriteGate/AgentParallelReadOneWrite.fsproj b/Chapter.13/AgentMultipleReadsOneWriteGate/AgentParallelReadOneWrite.fsproj
index 17c2d24..1a0fd4e 100644
--- a/Chapter.13/AgentMultipleReadsOneWriteGate/AgentParallelReadOneWrite.fsproj
+++ b/Chapter.13/AgentMultipleReadsOneWriteGate/AgentParallelReadOneWrite.fsproj
@@ -11,8 +11,9 @@
     <AssemblyName>AgentParallelReadOneWrite</AssemblyName>
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <Name>AgentParallelReadOneWrite</Name>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -60,12 +61,10 @@
     <Content Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib" />
     <Reference Include="FSharp.Core">
-      <Name>FSharp.Core</Name>
-      <AssemblyName>FSharp.Core.dll</AssemblyName>
-      <HintPath>$(MSBuildProgramFiles32)\Reference Assemblies\Microsoft\FSharp\.NETFramework\v4.0\$(TargetFSharpCoreVersion)\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
+    <Reference Include="mscorlib" />
     <Reference Include="System" />
     <Reference Include="System.Configuration" />
     <Reference Include="System.Core" />
diff --git a/Chapter.13/AgentMultipleReadsOneWriteGate/App.config b/Chapter.13/AgentMultipleReadsOneWriteGate/App.config
index 016d28f..d01e45a 100644
--- a/Chapter.13/AgentMultipleReadsOneWriteGate/App.config
+++ b/Chapter.13/AgentMultipleReadsOneWriteGate/App.config
@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
-    <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
-    </startup>
+  <startup>
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
+  </startup>
 </configuration>
\ No newline at end of file
diff --git a/Chapter.13/AgentMultipleReadsOneWriteGate/packages.config b/Chapter.13/AgentMultipleReadsOneWriteGate/packages.config
index 45a9abc..6a16163 100644
--- a/Chapter.13/AgentMultipleReadsOneWriteGate/packages.config
+++ b/Chapter.13/AgentMultipleReadsOneWriteGate/packages.config
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.Reactive" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Core" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Interfaces" version="3.1.1" targetFramework="net47" />
diff --git a/Chapter.13/AsyncObjectPool/AgentObjectPool/AgentObjectPool.fsproj b/Chapter.13/AsyncObjectPool/AgentObjectPool/AgentObjectPool.fsproj
index da1f0e4..9a33844 100644
--- a/Chapter.13/AsyncObjectPool/AgentObjectPool/AgentObjectPool.fsproj
+++ b/Chapter.13/AsyncObjectPool/AgentObjectPool/AgentObjectPool.fsproj
@@ -55,12 +55,10 @@
     <Content Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib" />
     <Reference Include="FSharp.Core">
-      <Name>FSharp.Core</Name>
-      <AssemblyName>FSharp.Core.dll</AssemblyName>
-      <HintPath>$(MSBuildProgramFiles32)\Reference Assemblies\Microsoft\FSharp\.NETFramework\v4.0\$(TargetFSharpCoreVersion)\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
+    <Reference Include="mscorlib" />
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Numerics" />
diff --git a/Chapter.13/AsyncObjectPool/AgentObjectPool/packages.config b/Chapter.13/AsyncObjectPool/AgentObjectPool/packages.config
index a2fd83a..49a4ad9 100644
--- a/Chapter.13/AsyncObjectPool/AgentObjectPool/packages.config
+++ b/Chapter.13/AsyncObjectPool/AgentObjectPool/packages.config
@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.ValueTuple" version="4.3.1" targetFramework="net47" />
 </packages>
\ No newline at end of file
diff --git a/Chapter.13/AsyncObjectPool/App.config b/Chapter.13/AsyncObjectPool/App.config
index 174c45a..856e0e8 100644
--- a/Chapter.13/AsyncObjectPool/App.config
+++ b/Chapter.13/AsyncObjectPool/App.config
@@ -3,4 +3,32 @@
     <startup>
         <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
     </startup>
+  <runtime>
+    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
+      <dependentAssembly>
+        <assemblyIdentity name="FSharp.Core" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.4.3.0" newVersion="4.4.3.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Reactive.Core" publicKeyToken="94bc3704cddfc263" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-3.0.3000.0" newVersion="3.0.3000.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime.Extensions" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Linq" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Reflection" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+    </assemblyBinding>
+  </runtime>
 </configuration>
\ No newline at end of file
diff --git a/Chapter.13/AsyncObjectPool/DataflowObjectPoolEncryption.csproj b/Chapter.13/AsyncObjectPool/DataflowObjectPoolEncryption.csproj
index b300495..954092c 100644
--- a/Chapter.13/AsyncObjectPool/DataflowObjectPoolEncryption.csproj
+++ b/Chapter.13/AsyncObjectPool/DataflowObjectPoolEncryption.csproj
@@ -38,8 +38,8 @@
     <Reference Include="FSharp.Charting, Version=0.91.1.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\..\packages\FSharp.Charting.0.91.1\lib\net45\FSharp.Charting.dll</HintPath>
     </Reference>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\FSharp.Core.4.1.18\lib\net45\FSharp.Core.dll</HintPath>
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="PerfUtil, Version=0.1.8.0, Culture=neutral, processorArchitecture=MSIL">
diff --git a/Chapter.13/AsyncObjectPool/packages.config b/Chapter.13/AsyncObjectPool/packages.config
index 99d1183..8df3dbb 100644
--- a/Chapter.13/AsyncObjectPool/packages.config
+++ b/Chapter.13/AsyncObjectPool/packages.config
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="FSharp.Charting" version="0.91.1" targetFramework="net47" />
-  <package id="FSharp.Core" version="4.1.18" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="Microsoft.Tpl.Dataflow" version="4.5.24" targetFramework="net47" />
+  <package id="PerfUtil" version="0.1.8" targetFramework="net47" />
   <package id="System.Reactive" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Core" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Interfaces" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Linq" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.PlatformServices" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Windows.Threading" version="3.1.1" targetFramework="net47" />
-  <package id="PerfUtil" version="0.1.8" targetFramework="net47" />
 </packages>
\ No newline at end of file
diff --git a/Chapter.13/Channel/AgentChannel/AgentChannel.fsproj b/Chapter.13/Channel/AgentChannel/AgentChannel.fsproj
index c5cdbd2..4f9cd04 100644
--- a/Chapter.13/Channel/AgentChannel/AgentChannel.fsproj
+++ b/Chapter.13/Channel/AgentChannel/AgentChannel.fsproj
@@ -11,8 +11,9 @@
     <AssemblyName>AgentChannel</AssemblyName>
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <Name>AgentChannel</Name>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -70,12 +71,10 @@
     </None>
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib" />
     <Reference Include="FSharp.Core">
-      <Name>FSharp.Core</Name>
-      <AssemblyName>FSharp.Core.dll</AssemblyName>
-      <HintPath>$(MSBuildProgramFiles32)\Reference Assemblies\Microsoft\FSharp\.NETFramework\v4.0\$(TargetFSharpCoreVersion)\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
+    <Reference Include="mscorlib" />
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Drawing" />
diff --git a/Chapter.13/Channel/AgentChannel/App.config b/Chapter.13/Channel/AgentChannel/App.config
index 016d28f..d01e45a 100644
--- a/Chapter.13/Channel/AgentChannel/App.config
+++ b/Chapter.13/Channel/AgentChannel/App.config
@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
-    <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
-    </startup>
+  <startup>
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
+  </startup>
 </configuration>
\ No newline at end of file
diff --git a/Chapter.13/Channel/AgentChannel/packages.config b/Chapter.13/Channel/AgentChannel/packages.config
index 45a9abc..6a16163 100644
--- a/Chapter.13/Channel/AgentChannel/packages.config
+++ b/Chapter.13/Channel/AgentChannel/packages.config
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.Reactive" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Core" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Interfaces" version="3.1.1" targetFramework="net47" />
diff --git a/Chapter.13/Channel/DataflowChannel/App.config b/Chapter.13/Channel/DataflowChannel/App.config
index 174c45a..9392afa 100644
--- a/Chapter.13/Channel/DataflowChannel/App.config
+++ b/Chapter.13/Channel/DataflowChannel/App.config
@@ -3,4 +3,32 @@
     <startup>
         <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
     </startup>
+  <runtime>
+    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Runtime.Extensions" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Linq" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Reflection" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="FSharp.Core" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-4.4.3.0" newVersion="4.4.3.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="System.Reactive.Core" publicKeyToken="94bc3704cddfc263" culture="neutral" />
+        <bindingRedirect oldVersion="0.0.0.0-3.0.3000.0" newVersion="3.0.3000.0" />
+      </dependentAssembly>
+    </assemblyBinding>
+  </runtime>
 </configuration>
\ No newline at end of file
diff --git a/Chapter.13/EventAggregator/EventAggregator.fs/App.config b/Chapter.13/EventAggregator/EventAggregator.fs/App.config
index 016d28f..d01e45a 100644
--- a/Chapter.13/EventAggregator/EventAggregator.fs/App.config
+++ b/Chapter.13/EventAggregator/EventAggregator.fs/App.config
@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
-    <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
-    </startup>
+  <startup>
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
+  </startup>
 </configuration>
\ No newline at end of file
diff --git a/Chapter.13/EventAggregator/EventAggregator.fs/EventAggregator.fs.fsproj b/Chapter.13/EventAggregator/EventAggregator.fs/EventAggregator.fs.fsproj
index 706916b..7466bff 100644
--- a/Chapter.13/EventAggregator/EventAggregator.fs/EventAggregator.fs.fsproj
+++ b/Chapter.13/EventAggregator/EventAggregator.fs/EventAggregator.fs.fsproj
@@ -11,8 +11,9 @@
     <AssemblyName>EventAggregator.fs</AssemblyName>
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <Name>EventAggregator.fs</Name>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -61,12 +62,10 @@
     <Content Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib" />
     <Reference Include="FSharp.Core">
-      <Name>FSharp.Core</Name>
-      <AssemblyName>FSharp.Core.dll</AssemblyName>
-      <HintPath>$(MSBuildProgramFiles32)\Reference Assemblies\Microsoft\FSharp\.NETFramework\v4.0\$(TargetFSharpCoreVersion)\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
+    <Reference Include="mscorlib" />
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Numerics" />
diff --git a/Chapter.13/EventAggregator/EventAggregator.fs/packages.config b/Chapter.13/EventAggregator/EventAggregator.fs/packages.config
index 45a9abc..6a16163 100644
--- a/Chapter.13/EventAggregator/EventAggregator.fs/packages.config
+++ b/Chapter.13/EventAggregator/EventAggregator.fs/packages.config
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.Reactive" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Core" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Interfaces" version="3.1.1" targetFramework="net47" />
diff --git a/Chapter.13/ForkJoin/App.config b/Chapter.13/ForkJoin/App.config
index 2986d5a..48eb849 100644
--- a/Chapter.13/ForkJoin/App.config
+++ b/Chapter.13/ForkJoin/App.config
@@ -7,7 +7,7 @@
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
         <assemblyIdentity name="FSharp.Core" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-4.4.1.0" newVersion="4.4.1.0" />
+        <bindingRedirect oldVersion="0.0.0.0-4.4.3.0" newVersion="4.4.3.0" />
       </dependentAssembly>
       <dependentAssembly>
         <assemblyIdentity name="System.Reactive.Core" publicKeyToken="94bc3704cddfc263" culture="neutral" />
diff --git a/Chapter.13/GraphTasks/GraphTasks/App.config b/Chapter.13/GraphTasks/GraphTasks/App.config
index 016d28f..d01e45a 100644
--- a/Chapter.13/GraphTasks/GraphTasks/App.config
+++ b/Chapter.13/GraphTasks/GraphTasks/App.config
@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
-    <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
-    </startup>
+  <startup>
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
+  </startup>
 </configuration>
\ No newline at end of file
diff --git a/Chapter.13/GraphTasks/GraphTasks/GraphTasks.fsproj b/Chapter.13/GraphTasks/GraphTasks/GraphTasks.fsproj
index 005007f..8cab0dd 100644
--- a/Chapter.13/GraphTasks/GraphTasks/GraphTasks.fsproj
+++ b/Chapter.13/GraphTasks/GraphTasks/GraphTasks.fsproj
@@ -11,8 +11,9 @@
     <AssemblyName>GraphTasks</AssemblyName>
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <Name>GraphTasks</Name>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -61,12 +62,10 @@
     <Content Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib" />
     <Reference Include="FSharp.Core">
-      <Name>FSharp.Core</Name>
-      <AssemblyName>FSharp.Core.dll</AssemblyName>
-      <HintPath>$(MSBuildProgramFiles32)\Reference Assemblies\Microsoft\FSharp\.NETFramework\v4.0\$(TargetFSharpCoreVersion)\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
+    <Reference Include="mscorlib" />
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Numerics" />
diff --git a/Chapter.13/GraphTasks/GraphTasks/packages.config b/Chapter.13/GraphTasks/GraphTasks/packages.config
index a2fd83a..49a4ad9 100644
--- a/Chapter.13/GraphTasks/GraphTasks/packages.config
+++ b/Chapter.13/GraphTasks/GraphTasks/packages.config
@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.ValueTuple" version="4.3.1" targetFramework="net47" />
 </packages>
\ No newline at end of file
diff --git a/Chapter.13/GraphTasks/RunDAG/RunDAG.csproj b/Chapter.13/GraphTasks/RunDAG/RunDAG.csproj
index 9853784..ad56ae2 100644
--- a/Chapter.13/GraphTasks/RunDAG/RunDAG.csproj
+++ b/Chapter.13/GraphTasks/RunDAG/RunDAG.csproj
@@ -32,8 +32,8 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\..\packages\FSharp.Core.4.2.3\lib\net45\FSharp.Core.dll</HintPath>
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
diff --git a/Chapter.13/GraphTasks/RunDAG/packages.config b/Chapter.13/GraphTasks/RunDAG/packages.config
index 2a7ffcb..ae65bfc 100644
--- a/Chapter.13/GraphTasks/RunDAG/packages.config
+++ b/Chapter.13/GraphTasks/RunDAG/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="FSharp.Core" version="4.2.3" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.Reactive" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Core" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Interfaces" version="3.1.1" targetFramework="net47" />
diff --git a/Chapter.13/ParallelFilterMap/ParallelFilterMap/ParallelFilterMap.csproj b/Chapter.13/ParallelFilterMap/ParallelFilterMap/ParallelFilterMap.csproj
index ebaedde..d3dcef3 100644
--- a/Chapter.13/ParallelFilterMap/ParallelFilterMap/ParallelFilterMap.csproj
+++ b/Chapter.13/ParallelFilterMap/ParallelFilterMap/ParallelFilterMap.csproj
@@ -32,8 +32,8 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\..\packages\FSharp.Core.4.2.3\lib\net45\FSharp.Core.dll</HintPath>
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
diff --git a/Chapter.13/ParallelFilterMap/ParallelFilterMap/packages.config b/Chapter.13/ParallelFilterMap/ParallelFilterMap/packages.config
index 0fafa2c..9257cf5 100644
--- a/Chapter.13/ParallelFilterMap/ParallelFilterMap/packages.config
+++ b/Chapter.13/ParallelFilterMap/ParallelFilterMap/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="FSharp.Core" version="4.2.3" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.Collections.Immutable" version="1.4.0" targetFramework="net47" />
 </packages>
\ No newline at end of file
diff --git a/Chapter.13/ReactiveNetworkStream/Client/Client.csproj b/Chapter.13/ReactiveNetworkStream/Client/Client.csproj
index f5a0cff..19d59d8 100644
--- a/Chapter.13/ReactiveNetworkStream/Client/Client.csproj
+++ b/Chapter.13/ReactiveNetworkStream/Client/Client.csproj
@@ -33,8 +33,8 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\..\packages\FSharp.Core.4.2.3\lib\net45\FSharp.Core.dll</HintPath>
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
@@ -72,7 +72,9 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="App.config" />
-    <None Include="packages.config" />
+    <None Include="packages.config">
+      <SubType>Designer</SubType>
+    </None>
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Common\Common.csproj">
diff --git a/Chapter.13/ReactiveNetworkStream/Client/packages.config b/Chapter.13/ReactiveNetworkStream/Client/packages.config
index 2a7ffcb..ae65bfc 100644
--- a/Chapter.13/ReactiveNetworkStream/Client/packages.config
+++ b/Chapter.13/ReactiveNetworkStream/Client/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="FSharp.Core" version="4.2.3" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.Reactive" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Core" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Interfaces" version="3.1.1" targetFramework="net47" />
diff --git a/Chapter.13/ReactiveNetworkStream/Server/Server.csproj b/Chapter.13/ReactiveNetworkStream/Server/Server.csproj
index 7942365..abae093 100644
--- a/Chapter.13/ReactiveNetworkStream/Server/Server.csproj
+++ b/Chapter.13/ReactiveNetworkStream/Server/Server.csproj
@@ -33,8 +33,8 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\..\packages\FSharp.Core.4.2.3\lib\net45\FSharp.Core.dll</HintPath>
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
diff --git a/Chapter.13/ReactiveNetworkStream/Server/packages.config b/Chapter.13/ReactiveNetworkStream/Server/packages.config
index 2a7ffcb..ae65bfc 100644
--- a/Chapter.13/ReactiveNetworkStream/Server/packages.config
+++ b/Chapter.13/ReactiveNetworkStream/Server/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="FSharp.Core" version="4.2.3" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.Reactive" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Core" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Interfaces" version="3.1.1" targetFramework="net47" />
diff --git a/Chapter.13/RxCustomScheduler/RxIScheduler.fsproj b/Chapter.13/RxCustomScheduler/RxIScheduler.fsproj
index 20f3726..ffe1a5f 100644
--- a/Chapter.13/RxCustomScheduler/RxIScheduler.fsproj
+++ b/Chapter.13/RxCustomScheduler/RxIScheduler.fsproj
@@ -60,7 +60,7 @@
       <HintPath>..\..\packages\FSharp.Control.Reactive.3.5.0\lib\net45\FSharp.Control.Reactive.dll</HintPath>
     </Reference>
     <Reference Include="FSharp.Core">
-      <HintPath>..\..\packages\FSharp.Core.4.1.18\lib\net45\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
     <Reference Include="FSharpx.Collections">
       <HintPath>..\..\packages\FSharpx.Collections.1.17.0\lib\net40\FSharpx.Collections.dll</HintPath>
diff --git a/Chapter.13/RxCustomScheduler/packages.config b/Chapter.13/RxCustomScheduler/packages.config
index 3a6614e..0dcad3f 100644
--- a/Chapter.13/RxCustomScheduler/packages.config
+++ b/Chapter.13/RxCustomScheduler/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="FSharp.Control.Reactive" version="3.5.0" targetFramework="net47" />
-  <package id="FSharp.Core" version="4.1.18" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="FSharpx.Collections" version="1.17.0" targetFramework="net47" />
   <package id="System.Reactive" version="3.1.1" targetFramework="net47" />
   <package id="System.Reactive.Core" version="3.1.1" targetFramework="net47" />
diff --git a/Chapter.13/TamingAndComposingAsyncOps/App.config b/Chapter.13/TamingAndComposingAsyncOps/App.config
index 016d28f..d01e45a 100644
--- a/Chapter.13/TamingAndComposingAsyncOps/App.config
+++ b/Chapter.13/TamingAndComposingAsyncOps/App.config
@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
-    <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
-    </startup>
+  <startup>
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7" />
+  </startup>
 </configuration>
\ No newline at end of file
diff --git a/Chapter.13/TamingAndComposingAsyncOps/TamingAgent.fsproj b/Chapter.13/TamingAndComposingAsyncOps/TamingAgent.fsproj
index 8366c7a..4592108 100644
--- a/Chapter.13/TamingAndComposingAsyncOps/TamingAgent.fsproj
+++ b/Chapter.13/TamingAndComposingAsyncOps/TamingAgent.fsproj
@@ -12,8 +12,9 @@
     <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <UseStandardResourceNames>true</UseStandardResourceNames>
-    <TargetFSharpCoreVersion>4.4.1.0</TargetFSharpCoreVersion>
+    <TargetFSharpCoreVersion>4.4.3.0</TargetFSharpCoreVersion>
     <Name>TamingAgent</Name>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -73,12 +74,10 @@
     <Content Include="packages.config" />
   </ItemGroup>
   <ItemGroup>
-    <Reference Include="mscorlib" />
     <Reference Include="FSharp.Core">
-      <Name>FSharp.Core</Name>
-      <AssemblyName>FSharp.Core.dll</AssemblyName>
-      <HintPath>$(MSBuildProgramFiles32)\Reference Assemblies\Microsoft\FSharp\.NETFramework\v4.0\$(TargetFSharpCoreVersion)\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
+    <Reference Include="mscorlib" />
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Drawing" />
diff --git a/Chapter.13/TamingAndComposingAsyncOps/packages.config b/Chapter.13/TamingAndComposingAsyncOps/packages.config
index a2fd83a..49a4ad9 100644
--- a/Chapter.13/TamingAndComposingAsyncOps/packages.config
+++ b/Chapter.13/TamingAndComposingAsyncOps/packages.config
@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.ValueTuple" version="4.3.1" targetFramework="net47" />
 </packages>
\ No newline at end of file
diff --git a/Chapter.14/StockTicker.Client.WPF/StockTicker.Client.WPF.csproj b/Chapter.14/StockTicker.Client.WPF/StockTicker.Client.WPF.csproj
index 914edbc..fb29b6b 100644
--- a/Chapter.14/StockTicker.Client.WPF/StockTicker.Client.WPF.csproj
+++ b/Chapter.14/StockTicker.Client.WPF/StockTicker.Client.WPF.csproj
@@ -39,8 +39,8 @@
     <StartupObject>StockTicker.Client.WPF.App</StartupObject>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\FSharp.Core.4.0.0.1\lib\net40\FSharp.Core.dll</HintPath>
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="GalaSoft.MvvmLight, Version=5.3.0.19026, Culture=neutral, PublicKeyToken=e7570ab207bcb616, processorArchitecture=MSIL">
diff --git a/Chapter.14/StockTicker.Client.WPF/packages.config b/Chapter.14/StockTicker.Client.WPF/packages.config
index 63f8894..083ef44 100644
--- a/Chapter.14/StockTicker.Client.WPF/packages.config
+++ b/Chapter.14/StockTicker.Client.WPF/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="CommonServiceLocator" version="1.3" targetFramework="net461" />
-  <package id="FSharp.Core" version="4.0.0.1" targetFramework="net461" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net461" />
   <package id="MahApps.Metro" version="1.5.0" targetFramework="net461" />
   <package id="Microsoft.AspNet.SignalR.Client" version="2.2.2" targetFramework="net461" />
   <package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net461" />
diff --git a/Chapter.14/StockTicker.Core/StockTicker.Core.fsproj b/Chapter.14/StockTicker.Core/StockTicker.Core.fsproj
index 95df65d..a5a9748 100644
--- a/Chapter.14/StockTicker.Core/StockTicker.Core.fsproj
+++ b/Chapter.14/StockTicker.Core/StockTicker.Core.fsproj
@@ -33,15 +33,15 @@
     <PlatformTarget>
     </PlatformTarget>
   </PropertyGroup>
+  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\FSharp\Microsoft.Portable.FSharp.Targets" />
+  <ItemGroup>
+    <Compile Include="Model.fs" />
+    <Compile Include="IStockTickerHubClient.fs" />
+    <Content Include="packages.config" />
+  </ItemGroup>
   <ItemGroup>
     <Reference Include="FSharp.Core">
       <HintPath>..\..\packages\FSharp.Core.4.0.0.1\lib\portable-net45+netcore45+wp8\FSharp.Core.dll</HintPath>
     </Reference>
   </ItemGroup>
-  <ItemGroup>
-    <Compile Include="Model.fs" />
-    <Compile Include="IStockTickerHubClient.fs" />
-    <None Include="packages.config" />
-  </ItemGroup>
-  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\FSharp\Microsoft.Portable.FSharp.Targets" />
 </Project>
\ No newline at end of file
diff --git a/Chapter.14/StockTicker.Server.Common/StockTicker.Server.Common.fsproj b/Chapter.14/StockTicker.Server.Common/StockTicker.Server.Common.fsproj
index b9f59da..8b948ac 100644
--- a/Chapter.14/StockTicker.Server.Common/StockTicker.Server.Common.fsproj
+++ b/Chapter.14/StockTicker.Server.Common/StockTicker.Server.Common.fsproj
@@ -69,7 +69,7 @@
       <HintPath>..\..\packages\FSharp.Control.Reactive.3.5.0\lib\net45\FSharp.Control.Reactive.dll</HintPath>
     </Reference>
     <Reference Include="FSharp.Core">
-      <HintPath>..\..\packages\FSharp.Core.4.2.2\lib\net45\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.AspNet.SignalR.Core">
       <HintPath>..\..\packages\Microsoft.AspNet.SignalR.Core.2.2.1\lib\net45\Microsoft.AspNet.SignalR.Core.dll</HintPath>
diff --git a/Chapter.14/StockTicker.Server.Common/packages.config b/Chapter.14/StockTicker.Server.Common/packages.config
index 2fa432a..d7d97c7 100644
--- a/Chapter.14/StockTicker.Server.Common/packages.config
+++ b/Chapter.14/StockTicker.Server.Common/packages.config
@@ -2,7 +2,7 @@
 <packages>
   <package id="FSharp.Collections.ParallelSeq" version="1.0.2" targetFramework="net47" />
   <package id="FSharp.Control.Reactive" version="3.5.0" targetFramework="net47" />
-  <package id="FSharp.Core" version="4.2.2" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="Microsoft.AspNet.SignalR.Core" version="2.2.1" targetFramework="net47" />
   <package id="Microsoft.Owin" version="2.1.0" targetFramework="net47" />
   <package id="Microsoft.Owin.Security" version="2.1.0" targetFramework="net47" />
diff --git a/Chapter.14/StockTicker.Server.Cs/StockTicker.Server.Cs.csproj b/Chapter.14/StockTicker.Server.Cs/StockTicker.Server.Cs.csproj
index 3e59f81..efb2bed 100644
--- a/Chapter.14/StockTicker.Server.Cs/StockTicker.Server.Cs.csproj
+++ b/Chapter.14/StockTicker.Server.Cs/StockTicker.Server.Cs.csproj
@@ -44,8 +44,8 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\FSharp.Core.4.2.2\lib\net45\FSharp.Core.dll</HintPath>
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="Microsoft.AspNet.SignalR.Core, Version=2.2.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
diff --git a/Chapter.14/StockTicker.Server.Cs/packages.config b/Chapter.14/StockTicker.Server.Cs/packages.config
index 2190409..bd72a49 100644
--- a/Chapter.14/StockTicker.Server.Cs/packages.config
+++ b/Chapter.14/StockTicker.Server.Cs/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="FSharp.Core" version="4.2.2" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="Microsoft.AspNet.Cors" version="5.2.3" targetFramework="net47" />
   <package id="Microsoft.AspNet.SignalR.Core" version="2.2.1" targetFramework="net47" />
   <package id="Microsoft.AspNet.SignalR.Owin" version="1.2.2" targetFramework="net47" />
diff --git a/Chapter.14/StockTicker.Server.Cs/web.config b/Chapter.14/StockTicker.Server.Cs/web.config
index 53c3887..0eca19d 100644
--- a/Chapter.14/StockTicker.Server.Cs/web.config
+++ b/Chapter.14/StockTicker.Server.Cs/web.config
@@ -74,7 +74,7 @@
       </dependentAssembly>
       <dependentAssembly>
         <assemblyIdentity name="FSharp.Core" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-4.4.1.0" newVersion="4.4.1.0" />
+        <bindingRedirect oldVersion="0.0.0.0-4.4.3.0" newVersion="4.4.3.0" />
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
diff --git a/Chapter.14/StockTicker.Server/StockTicker.Server.fsproj b/Chapter.14/StockTicker.Server/StockTicker.Server.fsproj
index 862238d..8115eea 100644
--- a/Chapter.14/StockTicker.Server/StockTicker.Server.fsproj
+++ b/Chapter.14/StockTicker.Server/StockTicker.Server.fsproj
@@ -64,7 +64,7 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="FSharp.Core">
-      <HintPath>..\..\packages\FSharp.Core.4.2.2\lib\net45\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
     <Reference Include="Microsoft.AspNet.SignalR.Core">
       <HintPath>..\..\packages\Microsoft.AspNet.SignalR.Core.2.2.1\lib\net45\Microsoft.AspNet.SignalR.Core.dll</HintPath>
diff --git a/Chapter.14/StockTicker.Server/packages.config b/Chapter.14/StockTicker.Server/packages.config
index 395afc0..19699c1 100644
--- a/Chapter.14/StockTicker.Server/packages.config
+++ b/Chapter.14/StockTicker.Server/packages.config
@@ -2,7 +2,7 @@
 <packages>
   <package id="FSharp.Collections.ParallelSeq" version="1.0.2" targetFramework="net461" />
   <package id="FSharp.Control.Reactive" version="3.5.0" targetFramework="net461" />
-  <package id="FSharp.Core" version="4.2.2" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="Microsoft.AspNet.Cors" version="5.2.3" targetFramework="net461" />
   <package id="Microsoft.AspNet.SignalR.Core" version="2.2.1" targetFramework="net461" />
   <package id="Microsoft.AspNet.SignalR.Owin" version="1.2.2" targetFramework="net461" />
diff --git a/Common/Functional.cs/Functional.cs.csproj b/Common/Functional.cs/Functional.cs.csproj
index 27af62d..5b31897 100644
--- a/Common/Functional.cs/Functional.cs.csproj
+++ b/Common/Functional.cs/Functional.cs.csproj
@@ -31,8 +31,8 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\FSharp.Core.4.1.17\lib\net45\FSharp.Core.dll</HintPath>
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
diff --git a/Common/Functional.cs/packages.config b/Common/Functional.cs/packages.config
index e234d26..539ac05 100644
--- a/Common/Functional.cs/packages.config
+++ b/Common/Functional.cs/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="FSharp.Core" version="4.1.17" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.Collections" version="4.0.11" targetFramework="net47" />
   <package id="System.Console" version="4.0.0" targetFramework="net47" />
   <package id="System.Diagnostics.Debug" version="4.0.11" targetFramework="net47" />
diff --git a/Common/Functional.fs/Functional.fs.fsproj b/Common/Functional.fs/Functional.fs.fsproj
index 56ba76b..b20d5f4 100644
--- a/Common/Functional.fs/Functional.fs.fsproj
+++ b/Common/Functional.fs/Functional.fs.fsproj
@@ -64,7 +64,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="FSharp.Core">
-      <HintPath>..\..\packages\FSharp.Core.4.2.3\lib\net45\FSharp.Core.dll</HintPath>
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
     </Reference>
     <Reference Include="FSharp.PowerPack">
       <HintPath>..\..\packages\FSPowerPack.Core.Community.2.0.0.0\Lib\Net40\FSharp.PowerPack.dll</HintPath>
diff --git a/Common/Functional.fs/packages.config b/Common/Functional.fs/packages.config
index ff4d96c..6e5dc71 100644
--- a/Common/Functional.fs/packages.config
+++ b/Common/Functional.fs/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="FSharp.Core" version="4.2.3" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="FSPowerPack.Core.Community" version="2.0.0.0" targetFramework="net47" />
   <package id="FSPowerPack.Parallel.Seq.Community" version="3.0.0.0" targetFramework="net47" />
   <package id="System.ValueTuple" version="4.3.1" targetFramework="net47" />
diff --git a/Common/PhotoViewer/PhotoViewer.csproj b/Common/PhotoViewer/PhotoViewer.csproj
index c8bf6b8..3b90355 100644
--- a/Common/PhotoViewer/PhotoViewer.csproj
+++ b/Common/PhotoViewer/PhotoViewer.csproj
@@ -36,7 +36,10 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="FSharp.Core, Version=4.4.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
+    <Reference Include="FSharp.Core, Version=4.4.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Data" />
     <Reference Include="System.ValueTuple, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
diff --git a/Common/PhotoViewer/packages.config b/Common/PhotoViewer/packages.config
index a2fd83a..49a4ad9 100644
--- a/Common/PhotoViewer/packages.config
+++ b/Common/PhotoViewer/packages.config
@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="System.ValueTuple" version="4.3.1" targetFramework="net47" />
 </packages>
\ No newline at end of file
diff --git a/Common/Utilities/Utilities.fsproj b/Common/Utilities/Utilities.fsproj
index 7156fda..f407945 100644
--- a/Common/Utilities/Utilities.fsproj
+++ b/Common/Utilities/Utilities.fsproj
@@ -64,6 +64,9 @@
     <Reference Include="FSharp.Charting">
       <HintPath>..\..\packages\FSharp.Charting.0.90.14\lib\net40\FSharp.Charting.dll</HintPath>
     </Reference>
+    <Reference Include="FSharp.Core">
+      <HintPath>..\..\packages\FSharp.Core.4.3.4\lib\net45\FSharp.Core.dll</HintPath>
+    </Reference>
     <Reference Include="FSharp.PowerPack">
       <HintPath>..\..\packages\FSPowerPack.Core.Community.2.0.0.1\Lib\Net40\FSharp.PowerPack.dll</HintPath>
     </Reference>
@@ -80,9 +83,6 @@
       <HintPath>..\..\packages\Microsoft.IO.RecyclableMemoryStream.1.2.2\lib\net45\Microsoft.IO.RecyclableMemoryStream.dll</HintPath>
     </Reference>
     <Reference Include="mscorlib" />
-    <Reference Include="FSharp.Core, Version=4.4.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
-      <Private>True</Private>
-    </Reference>
     <Reference Include="PerfUtil">
       <HintPath>..\..\packages\PerfUtil.0.1.8\lib\net40\PerfUtil.dll</HintPath>
     </Reference>
diff --git a/Common/Utilities/packages.config b/Common/Utilities/packages.config
index f939a15..d6c5182 100644
--- a/Common/Utilities/packages.config
+++ b/Common/Utilities/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="FSharp.Charting" version="0.90.14" targetFramework="net47" />
-  <package id="FSharp.Core" version="4.2.3" targetFramework="net47" />
+  <package id="FSharp.Core" version="4.3.4" targetFramework="net47" />
   <package id="FSPowerPack.Community" version="3.0.0.0" targetFramework="net47" />
   <package id="FSPowerPack.Core.Community" version="2.0.0.1" targetFramework="net47" />
   <package id="FSPowerPack.Linq.Community" version="2.0.0.1" targetFramework="net47" />