diff --git a/builds/msvc/resource.rc b/builds/msvc/resource.rc
index 24ce03e8..e2c3120d 100644
Binary files a/builds/msvc/resource.rc and b/builds/msvc/resource.rc differ
diff --git a/packaging/nuget/package.config b/packaging/nuget/package.config
index ee7b3f37..94f4dc90 100644
--- a/packaging/nuget/package.config
+++ b/packaging/nuget/package.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- These values are populated into the package.gsl templates by package.bat. -->
 <!-- The target attribute controls path and file name only, id controls package naming. -->
-<package id="libzmq_vc120" target="libzmq" version = "4.2.20.1" pathversion="4_2_20_1" platformtoolset="v120">
+<package id="libzmq_vc120" target="libzmq" version = "4.2.30.0" pathversion="4_2_30_0" platformtoolset="v120">
   <!--<dependency id="libsodium_vc120" version="1.0.12.0" />-->
 </package>
\ No newline at end of file
diff --git a/packaging/nuget/package.gsl b/packaging/nuget/package.gsl
index 1ff5549b..c0c3db49 100644
--- a/packaging/nuget/package.gsl
+++ b/packaging/nuget/package.gsl
@@ -25,7 +25,7 @@
         <requireLicenseAcceptance>true</requireLicenseAcceptance>
         <developmentDependency>false</developmentDependency>
         <description>The 0MQ lightweight messaging kernel is a library which extends the standard socket interfaces with features traditionally provided by specialised messaging middleware products. 0MQ sockets provide an abstraction of asynchronous message queues, multiple messaging patterns, message filtering (subscriptions), seamless access to multiple transport protocols and more.</description>
-        <summary>The 0MQ lightweight messaging kernel, with tweetnacl integrated, packaged for Visual Studio 2013 (v120) and CTP_Nov2013 compilers.</summary>
+        <summary>The 0MQ lightweight messaging kernel, with tweetnacl integrated, packaged for specific Visual Studio compiler.</summary>
         <releaseNotes>https://raw.github.com/zeromq/libzmq/master/NEWS</releaseNotes>
         <copyright>GNU Lesser GPL v3</copyright>
         <tags>native, libzmq, zmq, 0MQ, messaging, sockets, C++</tags>
diff --git a/packaging/nuget/package.nuspec b/packaging/nuget/package.nuspec
index fee3faac..f53626f9 100644
--- a/packaging/nuget/package.nuspec
+++ b/packaging/nuget/package.nuspec
@@ -7,7 +7,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2013/01/nuspec.xsd">
     <metadata minClientVersion="2.5">
         <id>libzmq_vc120</id>
-        <version>4.2.20.1</version>
+        <version>4.2.30.0</version>
         <title>libzmq_vc120</title>
         <authors>libzmq contributors</authors>
         <owners>Eric Voskuil</owners>
@@ -17,7 +17,7 @@
         <requireLicenseAcceptance>true</requireLicenseAcceptance>
         <developmentDependency>false</developmentDependency>
         <description>The 0MQ lightweight messaging kernel is a library which extends the standard socket interfaces with features traditionally provided by specialised messaging middleware products. 0MQ sockets provide an abstraction of asynchronous message queues, multiple messaging patterns, message filtering (subscriptions), seamless access to multiple transport protocols and more.</description>
-        <summary>The 0MQ lightweight messaging kernel, with tweetnacl integrated, packaged for Visual Studio 2013 (v120) and CTP_Nov2013 compilers.</summary>
+        <summary>The 0MQ lightweight messaging kernel, with tweetnacl integrated, packaged for specific Visual Studio compiler.</summary>
         <releaseNotes>https://raw.github.com/zeromq/libzmq/master/NEWS</releaseNotes>
         <copyright>GNU Lesser GPL v3</copyright>
         <tags>native, libzmq, zmq, 0MQ, messaging, sockets, C++</tags>
@@ -43,52 +43,52 @@
         <!-- libraries -->
 
         <!-- x86 Dynamic libraries (.dll) -->
-        <file src="..\..\bin\Win32\Release\v120\dynamic\libzmq.dll" target="build\native\bin\libzmq-x86-v120-mt-4_2_20_1.dll" />
-        <file src="..\..\bin\Win32\Debug\v120\dynamic\libzmq.dll" target="build\native\bin\libzmq-x86-v120-mt-gd-4_2_20_1.dll" />
+        <file src="..\..\bin\Win32\Release\v120\dynamic\libzmq.dll" target="build\native\bin\libzmq-x86-v120-mt-4_2_30_0.dll" />
+        <file src="..\..\bin\Win32\Debug\v120\dynamic\libzmq.dll" target="build\native\bin\libzmq-x86-v120-mt-gd-4_2_30_0.dll" />
 
         <!-- x86 Debugging symbols (.pdb) -->
-        <!--<file src="..\..\bin\Win32\Release\v120\dynamic\libzmq.pdb" target="build\native\bin\libzmq-x86-v120-mt-4_2_20_1.pdb" />-->
-        <file src="..\..\bin\Win32\Debug\v120\dynamic\libzmq.pdb" target="build\native\bin\libzmq-x86-v120-mt-gd-4_2_20_1.pdb" />
+        <!--<file src="..\..\bin\Win32\Release\v120\dynamic\libzmq.pdb" target="build\native\bin\libzmq-x86-v120-mt-4_2_30_0.pdb" />-->
+        <file src="..\..\bin\Win32\Debug\v120\dynamic\libzmq.pdb" target="build\native\bin\libzmq-x86-v120-mt-gd-4_2_30_0.pdb" />
 
         <!-- x86 Import libraries (.imp.lib) -->
-        <file src="..\..\bin\Win32\Release\v120\dynamic\libzmq.lib" target="build\native\bin\libzmq-x86-v120-mt-4_2_20_1.imp.lib" />
-        <file src="..\..\bin\Win32\Debug\v120\dynamic\libzmq.lib" target="build\native\bin\libzmq-x86-v120-mt-gd-4_2_20_1.imp.lib" />
+        <file src="..\..\bin\Win32\Release\v120\dynamic\libzmq.lib" target="build\native\bin\libzmq-x86-v120-mt-4_2_30_0.imp.lib" />
+        <file src="..\..\bin\Win32\Debug\v120\dynamic\libzmq.lib" target="build\native\bin\libzmq-x86-v120-mt-gd-4_2_30_0.imp.lib" />
 
         <!-- x86 Export libraries (.exp) -->
-        <file src="..\..\bin\Win32\Release\v120\dynamic\libzmq.exp" target="build\native\bin\libzmq-x86-v120-mt-4_2_20_1.exp" />
-        <file src="..\..\bin\Win32\Debug\v120\dynamic\libzmq.exp" target="build\native\bin\libzmq-x86-v120-mt-gd-4_2_20_1.exp" />
+        <file src="..\..\bin\Win32\Release\v120\dynamic\libzmq.exp" target="build\native\bin\libzmq-x86-v120-mt-4_2_30_0.exp" />
+        <file src="..\..\bin\Win32\Debug\v120\dynamic\libzmq.exp" target="build\native\bin\libzmq-x86-v120-mt-gd-4_2_30_0.exp" />
 
         <!-- x86 Static libraries (.lib) -->
-        <file src="..\..\bin\Win32\Release\v120\static\libzmq.lib" target="build\native\bin\libzmq-x86-v120-mt-s-4_2_20_1.lib" />
-        <file src="..\..\bin\Win32\Debug\v120\static\libzmq.lib" target="build\native\bin\libzmq-x86-v120-mt-sgd-4_2_20_1.lib" />
+        <file src="..\..\bin\Win32\Release\v120\static\libzmq.lib" target="build\native\bin\libzmq-x86-v120-mt-s-4_2_30_0.lib" />
+        <file src="..\..\bin\Win32\Debug\v120\static\libzmq.lib" target="build\native\bin\libzmq-x86-v120-mt-sgd-4_2_30_0.lib" />
 
         <!-- x86 Static link time code generation libraries (.ltcg.lib) -->
-        <file src="..\..\bin\Win32\Release\v120\ltcg\libzmq.lib" target="build\native\bin\libzmq-x86-v120-mt-s-4_2_20_1.ltcg.lib" />
-        <file src="..\..\bin\Win32\Debug\v120\ltcg\libzmq.lib" target="build\native\bin\libzmq-x86-v120-mt-sgd-4_2_20_1.ltcg.lib" />
+        <file src="..\..\bin\Win32\Release\v120\ltcg\libzmq.lib" target="build\native\bin\libzmq-x86-v120-mt-s-4_2_30_0.ltcg.lib" />
+        <file src="..\..\bin\Win32\Debug\v120\ltcg\libzmq.lib" target="build\native\bin\libzmq-x86-v120-mt-sgd-4_2_30_0.ltcg.lib" />
 
         <!-- x64 Dynamic libraries (.dll) -->
-        <file src="..\..\bin\x64\Release\v120\dynamic\libzmq.dll" target="build\native\bin\libzmq-x64-v120-mt-4_2_20_1.dll" />
-        <file src="..\..\bin\x64\Debug\v120\dynamic\libzmq.dll" target="build\native\bin\libzmq-x64-v120-mt-gd-4_2_20_1.dll" />
+        <file src="..\..\bin\x64\Release\v120\dynamic\libzmq.dll" target="build\native\bin\libzmq-x64-v120-mt-4_2_30_0.dll" />
+        <file src="..\..\bin\x64\Debug\v120\dynamic\libzmq.dll" target="build\native\bin\libzmq-x64-v120-mt-gd-4_2_30_0.dll" />
 
         <!-- x64 Debugging symbols (.pdb) -->
-        <!--<file src="..\..\bin\x64\Release\v120\dynamic\libzmq.pdb" target="build\native\bin\libzmq-x64-v120-mt-4_2_20_1.pdb" />-->
-        <file src="..\..\bin\x64\Debug\v120\dynamic\libzmq.pdb" target="build\native\bin\libzmq-x64-v120-mt-gd-4_2_20_1.pdb" />
+        <!--<file src="..\..\bin\x64\Release\v120\dynamic\libzmq.pdb" target="build\native\bin\libzmq-x64-v120-mt-4_2_30_0.pdb" />-->
+        <file src="..\..\bin\x64\Debug\v120\dynamic\libzmq.pdb" target="build\native\bin\libzmq-x64-v120-mt-gd-4_2_30_0.pdb" />
 
         <!-- x64 Import libraries (.imp.lib) -->
-        <file src="..\..\bin\x64\Release\v120\dynamic\libzmq.lib" target="build\native\bin\libzmq-x64-v120-mt-4_2_20_1.imp.lib" />
-        <file src="..\..\bin\x64\Debug\v120\dynamic\libzmq.lib" target="build\native\bin\libzmq-x64-v120-mt-gd-4_2_20_1.imp.lib" />
+        <file src="..\..\bin\x64\Release\v120\dynamic\libzmq.lib" target="build\native\bin\libzmq-x64-v120-mt-4_2_30_0.imp.lib" />
+        <file src="..\..\bin\x64\Debug\v120\dynamic\libzmq.lib" target="build\native\bin\libzmq-x64-v120-mt-gd-4_2_30_0.imp.lib" />
 
         <!-- x64 Export libraries (.exp) -->
-        <file src="..\..\bin\x64\Release\v120\dynamic\libzmq.exp" target="build\native\bin\libzmq-x64-v120-mt-4_2_20_1.exp" />
-        <file src="..\..\bin\x64\Debug\v120\dynamic\libzmq.exp" target="build\native\bin\libzmq-x64-v120-mt-gd-4_2_20_1.exp" />
+        <file src="..\..\bin\x64\Release\v120\dynamic\libzmq.exp" target="build\native\bin\libzmq-x64-v120-mt-4_2_30_0.exp" />
+        <file src="..\..\bin\x64\Debug\v120\dynamic\libzmq.exp" target="build\native\bin\libzmq-x64-v120-mt-gd-4_2_30_0.exp" />
 
         <!-- x64 Static libraries (.lib) -->
-        <file src="..\..\bin\x64\Release\v120\static\libzmq.lib" target="build\native\bin\libzmq-x64-v120-mt-s-4_2_20_1.lib" />
-        <file src="..\..\bin\x64\Debug\v120\static\libzmq.lib" target="build\native\bin\libzmq-x64-v120-mt-sgd-4_2_20_1.lib" />
+        <file src="..\..\bin\x64\Release\v120\static\libzmq.lib" target="build\native\bin\libzmq-x64-v120-mt-s-4_2_30_0.lib" />
+        <file src="..\..\bin\x64\Debug\v120\static\libzmq.lib" target="build\native\bin\libzmq-x64-v120-mt-sgd-4_2_30_0.lib" />
 
         <!-- x64 Static link time code generation libraries (.ltcg.lib) -->
-        <file src="..\..\bin\Win32\Release\v120\ltcg\libzmq.lib" target="build\native\bin\libzmq-x64-v120-mt-s-4_2_20_1.ltcg.lib" />
-        <file src="..\..\bin\Win32\Debug\v120\ltcg\libzmq.lib" target="build\native\bin\libzmq-x64-v120-mt-sgd-4_2_20_1.ltcg.lib" />
+        <file src="..\..\bin\Win32\Release\v120\ltcg\libzmq.lib" target="build\native\bin\libzmq-x64-v120-mt-s-4_2_30_0.ltcg.lib" />
+        <file src="..\..\bin\Win32\Debug\v120\ltcg\libzmq.lib" target="build\native\bin\libzmq-x64-v120-mt-sgd-4_2_30_0.ltcg.lib" />
     </files>
 <!--
 #################################################################
diff --git a/packaging/nuget/package.targets b/packaging/nuget/package.targets
index 308d12dd..13b106c2 100644
--- a/packaging/nuget/package.targets
+++ b/packaging/nuget/package.targets
@@ -31,66 +31,66 @@
   <!-- static libraries -->
   <ItemDefinitionGroup Condition="'$(Platform)' == 'Win32' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'static' And $(Configuration.IndexOf('Release')) != -1">
     <Link>
-      <AdditionalDependencies>libzmq-x86-v120-mt-s-4_2_20_1.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libzmq-x86-v120-mt-s-4_2_30_0.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Platform)' == 'Win32' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'static' And $(Configuration.IndexOf('Debug')) != -1">
     <Link>
-      <AdditionalDependencies>libzmq-x86-v120-mt-sgd-4_2_20_1.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libzmq-x86-v120-mt-sgd-4_2_30_0.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Platform)' == 'x64' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'static' And $(Configuration.IndexOf('Release')) != -1">
     <Link>
-      <AdditionalDependencies>libzmq-x64-v120-mt-s-4_2_20_1.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libzmq-x64-v120-mt-s-4_2_30_0.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Platform)' == 'x64' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'static' And $(Configuration.IndexOf('Debug')) != -1">
     <Link>
-      <AdditionalDependencies>libzmq-x64-v120-mt-sgd-4_2_20_1.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libzmq-x64-v120-mt-sgd-4_2_30_0.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
 
   <!-- static ltcg libraries -->
   <ItemDefinitionGroup Condition="'$(Platform)' == 'Win32' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'ltcg' And $(Configuration.IndexOf('Release')) != -1">
     <Link>
-      <AdditionalDependencies>libzmq-x86-v120-mt-s-4_2_20_1.ltcg.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libzmq-x86-v120-mt-s-4_2_30_0.ltcg.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Platform)' == 'Win32' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'ltcg' And $(Configuration.IndexOf('Debug')) != -1">
     <Link>
-      <AdditionalDependencies>libzmq-x86-v120-mt-sgd-4_2_20_1.ltcg.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libzmq-x86-v120-mt-sgd-4_2_30_0.ltcg.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Platform)' == 'x64' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'ltcg' And $(Configuration.IndexOf('Release')) != -1">
     <Link>
-      <AdditionalDependencies>libzmq-x64-v120-mt-s-4_2_20_1.ltcg.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libzmq-x64-v120-mt-s-4_2_30_0.ltcg.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Platform)' == 'x64' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'ltcg' And $(Configuration.IndexOf('Debug')) != -1">
     <Link>
-      <AdditionalDependencies>libzmq-x64-v120-mt-sgd-4_2_20_1.ltcg.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libzmq-x64-v120-mt-sgd-4_2_30_0.ltcg.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   
   <!-- dynamic import libraries -->
   <ItemDefinitionGroup Condition="'$(Platform)' == 'Win32' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'dynamic' And $(Configuration.IndexOf('Release')) != -1">
     <Link>
-      <AdditionalDependencies>libzmq-x86-v120-mt-4_2_20_1.imp.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libzmq-x86-v120-mt-4_2_30_0.imp.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Platform)' == 'Win32' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'dynamic' And $(Configuration.IndexOf('Debug')) != -1">
     <Link>
-      <AdditionalDependencies>libzmq-x86-v120-mt-gd-4_2_20_1.imp.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libzmq-x86-v120-mt-gd-4_2_30_0.imp.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Platform)' == 'x64' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'dynamic' And $(Configuration.IndexOf('Release')) != -1">
     <Link>
-      <AdditionalDependencies>libzmq-x64-v120-mt-4_2_20_1.imp.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libzmq-x64-v120-mt-4_2_30_0.imp.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Platform)' == 'x64' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'dynamic' And $(Configuration.IndexOf('Debug')) != -1">
     <Link>
-      <AdditionalDependencies>libzmq-x64-v120-mt-gd-4_2_20_1.imp.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>libzmq-x64-v120-mt-gd-4_2_30_0.imp.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
 
@@ -99,26 +99,26 @@
   <Target Name="libzmq_AfterBuild_Win32_v120_Dynamic_Release"
           Condition="'$(Platform)' == 'Win32' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'dynamic' And $(Configuration.IndexOf('Release')) != -1"
           AfterTargets="libzmq_AfterBuild">
-    <Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x86-v120-mt-4_2_20_1.dll" DestinationFiles="$(TargetDir)libzmq.dll" SkipUnchangedFiles="true" />
-    <!--<Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x86-v120-mt-4_2_20_1.pdb" DestinationFiles="$(TargetDir)libzmq.pdb" SkipUnchangedFiles="true" />-->
+    <Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x86-v120-mt-4_2_30_0.dll" DestinationFiles="$(TargetDir)libzmq.dll" SkipUnchangedFiles="true" />
+    <!--<Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x86-v120-mt-4_2_30_0.pdb" DestinationFiles="$(TargetDir)libzmq.pdb" SkipUnchangedFiles="true" />-->
   </Target>
   <Target Name="libzmq_AfterBuild_Win32_v120_Dynamic_Debug"
           Condition="'$(Platform)' == 'Win32' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'dynamic' And $(Configuration.IndexOf('Debug')) != -1"
           AfterTargets="libzmq_AfterBuild">
-    <Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x86-v120-mt-gd-4_2_20_1.dll" DestinationFiles="$(TargetDir)libzmq.dll" SkipUnchangedFiles="true" />
-    <Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x86-v120-mt-gd-4_2_20_1.pdb" DestinationFiles="$(TargetDir)libzmq.pdb" SkipUnchangedFiles="true" />
+    <Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x86-v120-mt-gd-4_2_30_0.dll" DestinationFiles="$(TargetDir)libzmq.dll" SkipUnchangedFiles="true" />
+    <Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x86-v120-mt-gd-4_2_30_0.pdb" DestinationFiles="$(TargetDir)libzmq.pdb" SkipUnchangedFiles="true" />
   </Target>
   <Target Name="libzmq_AfterBuild_x64_v120_Dynamic_Release"
           Condition="'$(Platform)' == 'x64' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'dynamic' And $(Configuration.IndexOf('Release')) != -1"
           AfterTargets="libzmq_AfterBuild">
-    <Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x64-v120-mt-4_2_20_1.dll" DestinationFiles="$(TargetDir)libzmq.dll" SkipUnchangedFiles="true" />
-    <!--<Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x64-v120-mt-4_2_20_1.pdb" DestinationFiles="$(TargetDir)libzmq.pdb" SkipUnchangedFiles="true" />-->
+    <Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x64-v120-mt-4_2_30_0.dll" DestinationFiles="$(TargetDir)libzmq.dll" SkipUnchangedFiles="true" />
+    <!--<Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x64-v120-mt-4_2_30_0.pdb" DestinationFiles="$(TargetDir)libzmq.pdb" SkipUnchangedFiles="true" />-->
   </Target>
   <Target Name="libzmq_AfterBuild_x64_v120_Dynamic_Debug"
           Condition="'$(Platform)' == 'x64' And ('$(PlatformToolset)' == 'v120' Or '$(PlatformToolset)' == 'CTP_Nov2013') And '$(Linkage-libzmq)' == 'dynamic' And $(Configuration.IndexOf('Debug')) != -1"
           AfterTargets="libzmq_AfterBuild">
-    <Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x64-v120-mt-gd-4_2_20_1.dll" DestinationFiles="$(TargetDir)libzmq.dll" SkipUnchangedFiles="true" />
-    <Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x64-v120-mt-gd-4_2_20_1.pdb" DestinationFiles="$(TargetDir)libzmq.pdb" SkipUnchangedFiles="true" />
+    <Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x64-v120-mt-gd-4_2_30_0.dll" DestinationFiles="$(TargetDir)libzmq.dll" SkipUnchangedFiles="true" />
+    <Copy SourceFiles="$(MSBuildThisFileDirectory)bin\libzmq-x64-v120-mt-gd-4_2_30_0.pdb" DestinationFiles="$(TargetDir)libzmq.pdb" SkipUnchangedFiles="true" />
   </Target>
 
 <!--
diff --git a/src/blob.hpp b/src/blob.hpp
index 9e21718e..808750ac 100644
--- a/src/blob.hpp
+++ b/src/blob.hpp
@@ -34,7 +34,7 @@
 #include <string.h>
 #include <algorithm>
 
-#if __cplusplus >= 201103L || defined(_MSC_VER) && _MSC_VER >= 1700
+#if __cplusplus >= 201103L || defined(_MSC_VER) && _MSC_VER > 1700
 #define ZMQ_HAS_MOVE_SEMANTICS
 #define ZMQ_MAP_INSERT_OR_EMPLACE(k, v) emplace (k,v)
 #define ZMQ_PUSH_OR_EMPLACE_BACK emplace_back