diff --git a/Tests/NFUnitTestEncoding/NFUnitTestEncoding.nfproj b/Tests/NFUnitTestEncoding/NFUnitTestEncoding.nfproj
index 41d573f..90452a2 100644
--- a/Tests/NFUnitTestEncoding/NFUnitTestEncoding.nfproj
+++ b/Tests/NFUnitTestEncoding/NFUnitTestEncoding.nfproj
@@ -32,7 +32,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.49\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.52\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.TestFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.58\lib\netnano1.0\nanoFramework.TestFramework.dll</HintPath>
diff --git a/Tests/NFUnitTestEncoding/packages.config b/Tests/NFUnitTestEncoding/packages.config
index ebdc822..69c3999 100644
--- a/Tests/NFUnitTestEncoding/packages.config
+++ b/Tests/NFUnitTestEncoding/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.49" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
   <package id="nanoFramework.TestFramework" version="4.0.0-preview.58" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/NFUnitTestEncoding/packages.lock.json b/Tests/NFUnitTestEncoding/packages.lock.json
index 8684d03..3e79e5d 100644
--- a/Tests/NFUnitTestEncoding/packages.lock.json
+++ b/Tests/NFUnitTestEncoding/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.49, 2.0.0-preview.49]",
-        "resolved": "2.0.0-preview.49",
-        "contentHash": "/8/fw1qqEql05aelTR9QQi4ZF2M+Mdwuemjf9rul8yaOpl6jjnhhKfdRJMh4+BXp5VjwTZsALJVpp2aN+e7vzw=="
+        "requested": "[2.0.0-preview.52, 2.0.0-preview.52]",
+        "resolved": "2.0.0-preview.52",
+        "contentHash": "cV9JEhoc2OV/UL602i5xmEwQpnn/gzVMlDTAIAMRxCNwBKNYLO9U50OkJykpGnO2SULTsmvFqQWEGZiuANBZHw=="
       },
       "nanoFramework.TestFramework": {
         "type": "Direct",
diff --git a/Tests/NFUnitTestStringBuilder/NFUnitTestStringBuilder.nfproj b/Tests/NFUnitTestStringBuilder/NFUnitTestStringBuilder.nfproj
index f654521..c4a75e2 100644
--- a/Tests/NFUnitTestStringBuilder/NFUnitTestStringBuilder.nfproj
+++ b/Tests/NFUnitTestStringBuilder/NFUnitTestStringBuilder.nfproj
@@ -37,7 +37,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.49\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.52\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.TestFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\..\packages\nanoFramework.TestFramework.4.0.0-preview.58\lib\netnano1.0\nanoFramework.TestFramework.dll</HintPath>
diff --git a/Tests/NFUnitTestStringBuilder/packages.config b/Tests/NFUnitTestStringBuilder/packages.config
index ebdc822..69c3999 100644
--- a/Tests/NFUnitTestStringBuilder/packages.config
+++ b/Tests/NFUnitTestStringBuilder/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.49" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
   <package id="nanoFramework.TestFramework" version="4.0.0-preview.58" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/NFUnitTestStringBuilder/packages.lock.json b/Tests/NFUnitTestStringBuilder/packages.lock.json
index 8684d03..3e79e5d 100644
--- a/Tests/NFUnitTestStringBuilder/packages.lock.json
+++ b/Tests/NFUnitTestStringBuilder/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.49, 2.0.0-preview.49]",
-        "resolved": "2.0.0-preview.49",
-        "contentHash": "/8/fw1qqEql05aelTR9QQi4ZF2M+Mdwuemjf9rul8yaOpl6jjnhhKfdRJMh4+BXp5VjwTZsALJVpp2aN+e7vzw=="
+        "requested": "[2.0.0-preview.52, 2.0.0-preview.52]",
+        "resolved": "2.0.0-preview.52",
+        "contentHash": "cV9JEhoc2OV/UL602i5xmEwQpnn/gzVMlDTAIAMRxCNwBKNYLO9U50OkJykpGnO2SULTsmvFqQWEGZiuANBZHw=="
       },
       "nanoFramework.TestFramework": {
         "type": "Direct",
diff --git a/nanoFramework.System.Text.Benchmark/nanoFramework.System.Text.Benchmark.nfproj b/nanoFramework.System.Text.Benchmark/nanoFramework.System.Text.Benchmark.nfproj
index b33ad77..d0ef0f7 100644
--- a/nanoFramework.System.Text.Benchmark/nanoFramework.System.Text.Benchmark.nfproj
+++ b/nanoFramework.System.Text.Benchmark/nanoFramework.System.Text.Benchmark.nfproj
@@ -27,13 +27,13 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.49\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.52\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Benchmark, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.Benchmark.2.0.0-preview.1\lib\netnano1.0\nanoFramework.Benchmark.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Logging, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.Logging.2.0.0-preview.21\lib\netnano1.0\nanoFramework.Logging.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.Logging.2.0.0-preview.24\lib\netnano1.0\nanoFramework.Logging.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Native, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.Runtime.Native.2.0.0-preview.24\lib\netnano1.0\nanoFramework.Runtime.Native.dll</HintPath>
@@ -45,7 +45,7 @@
       <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.18\lib\netnano1.0\nanoFramework.System.Text.dll</HintPath>
     </Reference>
     <Reference Include="System.Diagnostics.Stopwatch, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Diagnostics.Stopwatch.2.0.0-preview.59\lib\System.Diagnostics.Stopwatch.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Diagnostics.Stopwatch.2.0.0-preview.77\lib\netnano1.0\System.Diagnostics.Stopwatch.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/nanoFramework.System.Text.Benchmark/packages.config b/nanoFramework.System.Text.Benchmark/packages.config
index 72fea3e..d576f1d 100644
--- a/nanoFramework.System.Text.Benchmark/packages.config
+++ b/nanoFramework.System.Text.Benchmark/packages.config
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="nanoFramework.Benchmark" version="2.0.0-preview.1" targetFramework="netnano1.0" />
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.49" targetFramework="netnano1.0" />
-  <package id="nanoFramework.Logging" version="2.0.0-preview.21" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
+  <package id="nanoFramework.Logging" version="2.0.0-preview.24" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Native" version="2.0.0-preview.24" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Collections" version="2.0.0-preview.14" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Diagnostics.Stopwatch" version="2.0.0-preview.59" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Diagnostics.Stopwatch" version="2.0.0-preview.77" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Text" version="2.0.0-preview.18" targetFramework="netnano1.0" />
 </packages>
\ No newline at end of file
diff --git a/nanoFramework.System.Text.Benchmark/packages.lock.json b/nanoFramework.System.Text.Benchmark/packages.lock.json
index 174cd8c..e5a5a23 100644
--- a/nanoFramework.System.Text.Benchmark/packages.lock.json
+++ b/nanoFramework.System.Text.Benchmark/packages.lock.json
@@ -10,15 +10,15 @@
       },
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.49, 2.0.0-preview.49]",
-        "resolved": "2.0.0-preview.49",
-        "contentHash": "/8/fw1qqEql05aelTR9QQi4ZF2M+Mdwuemjf9rul8yaOpl6jjnhhKfdRJMh4+BXp5VjwTZsALJVpp2aN+e7vzw=="
+        "requested": "[2.0.0-preview.52, 2.0.0-preview.52]",
+        "resolved": "2.0.0-preview.52",
+        "contentHash": "cV9JEhoc2OV/UL602i5xmEwQpnn/gzVMlDTAIAMRxCNwBKNYLO9U50OkJykpGnO2SULTsmvFqQWEGZiuANBZHw=="
       },
       "nanoFramework.Logging": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.21, 2.0.0-preview.21]",
-        "resolved": "2.0.0-preview.21",
-        "contentHash": "nu+9/LCoFTkYbEg+fo3qIIlOk6Tli89klhH8MAPi0++jj/ycTNmPVhAPhfwaKx5xCskxs+4v4xiheIxAaOaFmw=="
+        "requested": "[2.0.0-preview.24, 2.0.0-preview.24]",
+        "resolved": "2.0.0-preview.24",
+        "contentHash": "FVcYj9ttODjgvEYE/a3g4NvJ5s9BmgaSCowaqqAgrtKSU5p2RB1SkskP9KJFgyXug71a3Q/uaDgwO8EuaR1MfA=="
       },
       "nanoFramework.Runtime.Native": {
         "type": "Direct",
@@ -34,9 +34,9 @@
       },
       "nanoFramework.System.Diagnostics.Stopwatch": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.59, 2.0.0-preview.59]",
-        "resolved": "2.0.0-preview.59",
-        "contentHash": "RpDGPX47vWk9BUuvxdOL34T7O5OHb4q8CGZUwuMmxy3UovcTyJOd6kUyr7oMuwyVsZE0L47Z+ELz/y1wGMw0lw=="
+        "requested": "[2.0.0-preview.77, 2.0.0-preview.77]",
+        "resolved": "2.0.0-preview.77",
+        "contentHash": "sMsVTMdO6sd5ZefuaL58AgbHM/n3WKargfErwIS67kNSMsX7o/8BNpdZbJBtEJHfUaaBNjfuPSlBgSOcADefOQ=="
       },
       "nanoFramework.System.Text": {
         "type": "Direct",
diff --git a/nanoFramework.System.Text.nuspec b/nanoFramework.System.Text.nuspec
index abd1c7c..fbf691f 100644
--- a/nanoFramework.System.Text.nuspec
+++ b/nanoFramework.System.Text.nuspec
@@ -20,7 +20,7 @@ This package requires a target with System.Text v$nativeVersion$ (checksum $chec
     <tags>nanoFramework C# csharp netmf netnf nanoFramework.System.Text</tags>
     <dependencies>
       <group targetFramework=".NETnanoFramework1.0">
-        <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.49" />
+        <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" />
       </group>
     </dependencies>
   </metadata>
diff --git a/nanoFramework.System.Text/Properties/AssemblyInfo.cs b/nanoFramework.System.Text/Properties/AssemblyInfo.cs
index 03cd9e9..8015d7b 100644
--- a/nanoFramework.System.Text/Properties/AssemblyInfo.cs
+++ b/nanoFramework.System.Text/Properties/AssemblyInfo.cs
@@ -11,7 +11,7 @@
 
 ////////////////////////////////////////////////////////////////
 // update this whenever the native assembly signature changes //
-[assembly: AssemblyNativeVersion("100.2.0.0")]
+[assembly: AssemblyNativeVersion("100.2.0.1")]
 ////////////////////////////////////////////////////////////////
 
 // Setting ComVisible to false makes the types in this assembly not visible 
diff --git a/nanoFramework.System.Text/nanoFramework.System.Text.nfproj b/nanoFramework.System.Text/nanoFramework.System.Text.nfproj
index 203ff60..46bafa0 100644
--- a/nanoFramework.System.Text/nanoFramework.System.Text.nfproj
+++ b/nanoFramework.System.Text/nanoFramework.System.Text.nfproj
@@ -63,7 +63,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.49\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.52\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
   </ItemGroup>
   <Import Project="$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets" Condition="Exists('$(NanoFrameworkProjectSystemPath)NFProjectSystem.CSharp.targets')" />
diff --git a/nanoFramework.System.Text/packages.config b/nanoFramework.System.Text/packages.config
index d36e7c2..8da9ebb 100644
--- a/nanoFramework.System.Text/packages.config
+++ b/nanoFramework.System.Text/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.49" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.52" targetFramework="netnano1.0" />
   <package id="Nerdbank.GitVersioning" version="3.9.50" developmentDependency="true" targetFramework="netnano1.0" />
 </packages>
\ No newline at end of file
diff --git a/nanoFramework.System.Text/packages.lock.json b/nanoFramework.System.Text/packages.lock.json
index e95d3b5..fabe173 100644
--- a/nanoFramework.System.Text/packages.lock.json
+++ b/nanoFramework.System.Text/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.49, 2.0.0-preview.49]",
-        "resolved": "2.0.0-preview.49",
-        "contentHash": "/8/fw1qqEql05aelTR9QQi4ZF2M+Mdwuemjf9rul8yaOpl6jjnhhKfdRJMh4+BXp5VjwTZsALJVpp2aN+e7vzw=="
+        "requested": "[2.0.0-preview.52, 2.0.0-preview.52]",
+        "resolved": "2.0.0-preview.52",
+        "contentHash": "cV9JEhoc2OV/UL602i5xmEwQpnn/gzVMlDTAIAMRxCNwBKNYLO9U50OkJykpGnO2SULTsmvFqQWEGZiuANBZHw=="
       },
       "Nerdbank.GitVersioning": {
         "type": "Direct",