diff --git a/Tests/GenericCollections/GenericCollections.nfproj b/Tests/GenericCollections/GenericCollections.nfproj
index c26068c..7cf766d 100644
--- a/Tests/GenericCollections/GenericCollections.nfproj
+++ b/Tests/GenericCollections/GenericCollections.nfproj
@@ -39,7 +39,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.29\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.30\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.TestFramework">
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diff --git a/Tests/GenericCollections/packages.config b/Tests/GenericCollections/packages.config
index 43ab952..1f1664e 100644
--- a/Tests/GenericCollections/packages.config
+++ b/Tests/GenericCollections/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.29" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.30" targetFramework="netnano1.0" />
   <package id="nanoFramework.TestFramework" version="4.0.0-preview.45" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/GenericCollections/packages.lock.json b/Tests/GenericCollections/packages.lock.json
index 1fe5e62..244e70c 100644
--- a/Tests/GenericCollections/packages.lock.json
+++ b/Tests/GenericCollections/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
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-        "requested": "[2.0.0-preview.29, 2.0.0-preview.29]",
-        "resolved": "2.0.0-preview.29",
-        "contentHash": "7NDp9Sda9FTFBDN//X34r23rJBHUkCvyGvrFh9s5B8H2nMoet4J0OlEOiZRUsEPBXlsNpZFVp+Cd6OSjnLSg5A=="
+        "requested": "[2.0.0-preview.30, 2.0.0-preview.30]",
+        "resolved": "2.0.0-preview.30",
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       },
       "nanoFramework.TestFramework": {
         "type": "Direct",
diff --git a/Tests/HashtableTests/HashtableTests.nfproj b/Tests/HashtableTests/HashtableTests.nfproj
index 0be6533..6f215b1 100644
--- a/Tests/HashtableTests/HashtableTests.nfproj
+++ b/Tests/HashtableTests/HashtableTests.nfproj
@@ -34,7 +34,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.29\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.30\lib\netnano1.0\mscorlib.dll</HintPath>
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     <Reference Include="nanoFramework.TestFramework">
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diff --git a/Tests/HashtableTests/packages.config b/Tests/HashtableTests/packages.config
index 43ab952..1f1664e 100644
--- a/Tests/HashtableTests/packages.config
+++ b/Tests/HashtableTests/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.29" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.30" targetFramework="netnano1.0" />
   <package id="nanoFramework.TestFramework" version="4.0.0-preview.45" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/HashtableTests/packages.lock.json b/Tests/HashtableTests/packages.lock.json
index 1fe5e62..244e70c 100644
--- a/Tests/HashtableTests/packages.lock.json
+++ b/Tests/HashtableTests/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
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-        "requested": "[2.0.0-preview.29, 2.0.0-preview.29]",
-        "resolved": "2.0.0-preview.29",
-        "contentHash": "7NDp9Sda9FTFBDN//X34r23rJBHUkCvyGvrFh9s5B8H2nMoet4J0OlEOiZRUsEPBXlsNpZFVp+Cd6OSjnLSg5A=="
+        "requested": "[2.0.0-preview.30, 2.0.0-preview.30]",
+        "resolved": "2.0.0-preview.30",
+        "contentHash": "Fz+5L0yOpe0ZoBpVRqH8G8Dr18OoXVE6sKertR/bPuWyOJiO42enlarudfv91/gpJXFkQGNCCdXpHWpoc77jyg=="
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       "nanoFramework.TestFramework": {
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diff --git a/Tests/QueueTests/QueueTests.nfproj b/Tests/QueueTests/QueueTests.nfproj
index b5d1c04..f22b4af 100644
--- a/Tests/QueueTests/QueueTests.nfproj
+++ b/Tests/QueueTests/QueueTests.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.29\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.30\lib\netnano1.0\mscorlib.dll</HintPath>
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     <Reference Include="nanoFramework.TestFramework">
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diff --git a/Tests/QueueTests/packages.config b/Tests/QueueTests/packages.config
index 43ab952..1f1664e 100644
--- a/Tests/QueueTests/packages.config
+++ b/Tests/QueueTests/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.29" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.30" targetFramework="netnano1.0" />
   <package id="nanoFramework.TestFramework" version="4.0.0-preview.45" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/QueueTests/packages.lock.json b/Tests/QueueTests/packages.lock.json
index 1fe5e62..244e70c 100644
--- a/Tests/QueueTests/packages.lock.json
+++ b/Tests/QueueTests/packages.lock.json
@@ -4,9 +4,9 @@
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+        "requested": "[2.0.0-preview.30, 2.0.0-preview.30]",
+        "resolved": "2.0.0-preview.30",
+        "contentHash": "Fz+5L0yOpe0ZoBpVRqH8G8Dr18OoXVE6sKertR/bPuWyOJiO42enlarudfv91/gpJXFkQGNCCdXpHWpoc77jyg=="
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       "nanoFramework.TestFramework": {
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diff --git a/Tests/StackTests/StackTests.nfproj b/Tests/StackTests/StackTests.nfproj
index 4caa64f..e31164e 100644
--- a/Tests/StackTests/StackTests.nfproj
+++ b/Tests/StackTests/StackTests.nfproj
@@ -34,7 +34,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.29\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.30\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.TestFramework">
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diff --git a/Tests/StackTests/packages.config b/Tests/StackTests/packages.config
index 43ab952..1f1664e 100644
--- a/Tests/StackTests/packages.config
+++ b/Tests/StackTests/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.29" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.30" targetFramework="netnano1.0" />
   <package id="nanoFramework.TestFramework" version="4.0.0-preview.45" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/StackTests/packages.lock.json b/Tests/StackTests/packages.lock.json
index 1fe5e62..244e70c 100644
--- a/Tests/StackTests/packages.lock.json
+++ b/Tests/StackTests/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
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-        "requested": "[2.0.0-preview.29, 2.0.0-preview.29]",
-        "resolved": "2.0.0-preview.29",
-        "contentHash": "7NDp9Sda9FTFBDN//X34r23rJBHUkCvyGvrFh9s5B8H2nMoet4J0OlEOiZRUsEPBXlsNpZFVp+Cd6OSjnLSg5A=="
+        "requested": "[2.0.0-preview.30, 2.0.0-preview.30]",
+        "resolved": "2.0.0-preview.30",
+        "contentHash": "Fz+5L0yOpe0ZoBpVRqH8G8Dr18OoXVE6sKertR/bPuWyOJiO42enlarudfv91/gpJXFkQGNCCdXpHWpoc77jyg=="
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diff --git a/nanoFramework.System.Collections.nuspec b/nanoFramework.System.Collections.nuspec
index a752d5d..7a06019 100644
--- a/nanoFramework.System.Collections.nuspec
+++ b/nanoFramework.System.Collections.nuspec
@@ -19,7 +19,7 @@
 This package requires a target with System.Collections v$nativeVersion$ (checksum $checksum$).</description>
     <tags>nanoFramework C# csharp netmf netnf </tags>
     <dependencies>
-      <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.29" />
+      <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.30" />
     </dependencies>
   </metadata>
   <files>
diff --git a/nanoFramework.System.Collections/nanoFramework.System.Collections.nfproj b/nanoFramework.System.Collections/nanoFramework.System.Collections.nfproj
index fae8b8e..4cacb2b 100644
--- a/nanoFramework.System.Collections/nanoFramework.System.Collections.nfproj
+++ b/nanoFramework.System.Collections/nanoFramework.System.Collections.nfproj
@@ -71,7 +71,7 @@
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   <ItemGroup>
     <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.29\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.30\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.Collections/packages.config b/nanoFramework.System.Collections/packages.config
index 99e498c..b07d6d6 100644
--- a/nanoFramework.System.Collections/packages.config
+++ b/nanoFramework.System.Collections/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.29" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.30" 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.Collections/packages.lock.json b/nanoFramework.System.Collections/packages.lock.json
index 0e819fb..85dabf3 100644
--- a/nanoFramework.System.Collections/packages.lock.json
+++ b/nanoFramework.System.Collections/packages.lock.json
@@ -4,9 +4,9 @@
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+        "requested": "[2.0.0-preview.30, 2.0.0-preview.30]",
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