diff --git a/Tests/NFUnitTestRegex/NFUnitTestRegex.nfproj b/Tests/NFUnitTestRegex/NFUnitTestRegex.nfproj
index 1351578..2625d3f 100644
--- a/Tests/NFUnitTestRegex/NFUnitTestRegex.nfproj
+++ b/Tests/NFUnitTestRegex/NFUnitTestRegex.nfproj
@@ -40,7 +40,7 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.43\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\..\packages\nanoFramework.CoreLibrary.2.0.0-preview.49\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.52\lib\nanoFramework.TestFramework.dll</HintPath>
diff --git a/Tests/NFUnitTestRegex/packages.config b/Tests/NFUnitTestRegex/packages.config
index 6c5d277..c556982 100644
--- a/Tests/NFUnitTestRegex/packages.config
+++ b/Tests/NFUnitTestRegex/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.43" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.49" targetFramework="netnano1.0" />
   <package id="nanoFramework.TestFramework" version="4.0.0-preview.52" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>
\ No newline at end of file
diff --git a/Tests/NFUnitTestRegex/packages.lock.json b/Tests/NFUnitTestRegex/packages.lock.json
index 9308a68..21955ba 100644
--- a/Tests/NFUnitTestRegex/packages.lock.json
+++ b/Tests/NFUnitTestRegex/packages.lock.json
@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.CoreLibrary": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.43, 2.0.0-preview.43]",
-        "resolved": "2.0.0-preview.43",
-        "contentHash": "ijOdswxNI+zhN7MrRMjJPe7pAVhqARvpEOFKUKH6D18NUS3CCQ9+IoyVs3zJhmmBk53YmAErFAdCnAWLVxUu8Q=="
+        "requested": "[2.0.0-preview.49, 2.0.0-preview.49]",
+        "resolved": "2.0.0-preview.49",
+        "contentHash": "/8/fw1qqEql05aelTR9QQi4ZF2M+Mdwuemjf9rul8yaOpl6jjnhhKfdRJMh4+BXp5VjwTZsALJVpp2aN+e7vzw=="
       },
       "nanoFramework.TestFramework": {
         "type": "Direct",
diff --git a/nanoFramework.System.Text.RegularExpression.Benchmark/nanoFramework.System.Text.RegularExpression.Benchmark.nfproj b/nanoFramework.System.Text.RegularExpression.Benchmark/nanoFramework.System.Text.RegularExpression.Benchmark.nfproj
index db635fb..b2364bd 100644
--- a/nanoFramework.System.Text.RegularExpression.Benchmark/nanoFramework.System.Text.RegularExpression.Benchmark.nfproj
+++ b/nanoFramework.System.Text.RegularExpression.Benchmark/nanoFramework.System.Text.RegularExpression.Benchmark.nfproj
@@ -33,22 +33,22 @@
   </ItemGroup>
   <ItemGroup>
     <Reference Include="mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.43\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.49\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Benchmark, Version=1.0.113.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.Benchmark.1.0.113\lib\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.12\lib\netnano1.0\nanoFramework.Logging.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.Logging.2.0.0-preview.14\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.23\lib\netnano1.0\nanoFramework.Runtime.Native.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.System.Collections, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Collections.2.0.0-preview.13\lib\netnano1.0\nanoFramework.System.Collections.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Collections.2.0.0-preview.14\lib\netnano1.0\nanoFramework.System.Collections.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.System.Text, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.15\lib\netnano1.0\nanoFramework.System.Text.dll</HintPath>
+      <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.46\lib\System.Diagnostics.Stopwatch.dll</HintPath>
diff --git a/nanoFramework.System.Text.RegularExpression.Benchmark/packages.config b/nanoFramework.System.Text.RegularExpression.Benchmark/packages.config
index 265a6dc..391c80c 100644
--- a/nanoFramework.System.Text.RegularExpression.Benchmark/packages.config
+++ b/nanoFramework.System.Text.RegularExpression.Benchmark/packages.config
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="nanoFramework.Benchmark" version="1.0.113" targetFramework="netnano1.0" />
-  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.43" targetFramework="netnano1.0" />
-  <package id="nanoFramework.Logging" version="2.0.0-preview.12" 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.14" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Native" version="2.0.0-preview.23" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Collections" version="2.0.0-preview.13" 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.46" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Text" version="2.0.0-preview.15" 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.RegularExpression.Benchmark/packages.lock.json b/nanoFramework.System.Text.RegularExpression.Benchmark/packages.lock.json
index 9a8bfd8..9508e09 100644
--- a/nanoFramework.System.Text.RegularExpression.Benchmark/packages.lock.json
+++ b/nanoFramework.System.Text.RegularExpression.Benchmark/packages.lock.json
@@ -10,15 +10,15 @@
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+        "requested": "[2.0.0-preview.49, 2.0.0-preview.49]",
+        "resolved": "2.0.0-preview.49",
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       },
       "nanoFramework.Logging": {
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-        "resolved": "2.0.0-preview.12",
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+        "requested": "[2.0.0-preview.14, 2.0.0-preview.14]",
+        "resolved": "2.0.0-preview.14",
+        "contentHash": "Krrw6vIspUeN0vNqif/ShsY2LjaKABBLvHrXICdIg9sxtDVxPaJTbSSHs3zS8W2HUmwJ6iBZB9uwaCFyJwhIFA=="
       },
       "nanoFramework.Runtime.Native": {
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@@ -28,9 +28,9 @@
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       "nanoFramework.System.Collections": {
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-        "resolved": "2.0.0-preview.13",
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+        "requested": "[2.0.0-preview.14, 2.0.0-preview.14]",
+        "resolved": "2.0.0-preview.14",
+        "contentHash": "bD/aprDzvUS7UGXXnP1NxY2fVw2686gNtiDXt1CV3IMA6YKu7cGXdPXfO8RYDkPNkHJ8omuHNuyUaq0OhJH82g=="
       },
       "nanoFramework.System.Diagnostics.Stopwatch": {
         "type": "Direct",
@@ -40,9 +40,9 @@
       },
       "nanoFramework.System.Text": {
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-        "requested": "[2.0.0-preview.15, 2.0.0-preview.15]",
-        "resolved": "2.0.0-preview.15",
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+        "requested": "[2.0.0-preview.18, 2.0.0-preview.18]",
+        "resolved": "2.0.0-preview.18",
+        "contentHash": "ZnV49vaKgIzXN223aZ8Co3GZexDY+0d92QmOqfMdM/tzGIG2gnOy90UfAwQ3/n3Ea3a5RxNNgSxwxNGwsFgyMQ=="
       }
     }
   }
diff --git a/nanoFramework.System.Text.RegularExpressions.nuspec b/nanoFramework.System.Text.RegularExpressions.nuspec
index 3efb89c..09f6998 100644
--- a/nanoFramework.System.Text.RegularExpressions.nuspec
+++ b/nanoFramework.System.Text.RegularExpressions.nuspec
@@ -19,9 +19,9 @@
     <tags>nanoFramework C# csharp netmf netnf regex</tags>
     <dependencies>
       <group targetFramework=".NETnanoFramework1.0">
-        <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.43" />
-        <dependency id="nanoFramework.System.Collections" version="2.0.0-preview.13" />
-        <dependency id="nanoFramework.System.Text" version="2.0.0-preview.15" />
+        <dependency id="nanoFramework.CoreLibrary" version="2.0.0-preview.49" />
+        <dependency id="nanoFramework.System.Collections" version="2.0.0-preview.14" />
+        <dependency id="nanoFramework.System.Text" version="2.0.0-preview.18" />
       </group>
     </dependencies>
   </metadata>
diff --git a/nanoFramework.System.Text.RegularExpressions/nanoFramework.System.text.RegularExpressions.nfproj b/nanoFramework.System.Text.RegularExpressions/nanoFramework.System.text.RegularExpressions.nfproj
index 8eafc4e..b5e4a8c 100644
--- a/nanoFramework.System.Text.RegularExpressions/nanoFramework.System.text.RegularExpressions.nfproj
+++ b/nanoFramework.System.Text.RegularExpressions/nanoFramework.System.text.RegularExpressions.nfproj
@@ -61,13 +61,13 @@
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-      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.43\lib\netnano1.0\mscorlib.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.49\lib\netnano1.0\mscorlib.dll</HintPath>
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-      <HintPath>..\packages\nanoFramework.System.Collections.2.0.0-preview.13\lib\netnano1.0\nanoFramework.System.Collections.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Collections.2.0.0-preview.14\lib\netnano1.0\nanoFramework.System.Collections.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.System.Text, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.15\lib\netnano1.0\nanoFramework.System.Text.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.18\lib\netnano1.0\nanoFramework.System.Text.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
diff --git a/nanoFramework.System.Text.RegularExpressions/packages.config b/nanoFramework.System.Text.RegularExpressions/packages.config
index c936088..7154ea0 100644
--- a/nanoFramework.System.Text.RegularExpressions/packages.config
+++ b/nanoFramework.System.Text.RegularExpressions/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
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-  <package id="nanoFramework.System.Collections" version="2.0.0-preview.13" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Text" version="2.0.0-preview.15" targetFramework="netnano1.0" />
+  <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.49" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Collections" version="2.0.0-preview.14" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Text" version="2.0.0-preview.18" 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.RegularExpressions/packages.lock.json b/nanoFramework.System.Text.RegularExpressions/packages.lock.json
index 0899d64..135fce8 100644
--- a/nanoFramework.System.Text.RegularExpressions/packages.lock.json
+++ b/nanoFramework.System.Text.RegularExpressions/packages.lock.json
@@ -4,21 +4,21 @@
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