diff --git a/msvs_solution/libruisapp/libruisapp.vcxproj b/msvs_solution/libruisapp/libruisapp.vcxproj
index e313191..3816ab4 100755
--- a/msvs_solution/libruisapp/libruisapp.vcxproj
+++ b/msvs_solution/libruisapp/libruisapp.vcxproj
@@ -298,7 +298,7 @@
       <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DebugInformationFormat>OldStyle</DebugInformationFormat>
       <MinimalRebuild>false</MinimalRebuild>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -316,7 +316,7 @@
       <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DebugInformationFormat>OldStyle</DebugInformationFormat>
       <MinimalRebuild>false</MinimalRebuild>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -368,7 +368,7 @@
       <PreprocessorDefinitions>_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DebugInformationFormat>OldStyle</DebugInformationFormat>
       <MinimalRebuild>false</MinimalRebuild>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -386,7 +386,7 @@
       <PreprocessorDefinitions>_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DebugInformationFormat>OldStyle</DebugInformationFormat>
       <MinimalRebuild>false</MinimalRebuild>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -447,7 +447,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DebugInformationFormat>OldStyle</DebugInformationFormat>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
       <WholeProgramOptimization>false</WholeProgramOptimization>
     </ClCompile>
     <Link>
@@ -469,7 +469,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DebugInformationFormat>OldStyle</DebugInformationFormat>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
       <WholeProgramOptimization>false</WholeProgramOptimization>
     </ClCompile>
     <Link>
@@ -533,7 +533,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DebugInformationFormat>OldStyle</DebugInformationFormat>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
       <WholeProgramOptimization>false</WholeProgramOptimization>
     </ClCompile>
     <Link>
@@ -555,7 +555,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DebugInformationFormat>OldStyle</DebugInformationFormat>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
       <WholeProgramOptimization>false</WholeProgramOptimization>
     </ClCompile>
     <Link>
@@ -584,20 +584,20 @@
     <Import Project="..\packages\libjpeg_static.6.1.1.14\build\native\libjpeg_static.targets" Condition="Exists('..\packages\libjpeg_static.6.1.1.14\build\native\libjpeg_static.targets')" />
     <Import Project="..\packages\zlib_static.1.2.11.12\build\native\zlib_static.targets" Condition="Exists('..\packages\zlib_static.1.2.11.12\build\native\zlib_static.targets')" />
     <Import Project="..\packages\libpng_static.1.6.39.1\build\native\libpng_static.targets" Condition="Exists('..\packages\libpng_static.1.6.39.1\build\native\libpng_static.targets')" />
-    <Import Project="..\packages\libagg.2.8.22\build\native\libagg.targets" Condition="Exists('..\packages\libagg.2.8.22\build\native\libagg.targets')" />
-    <Import Project="..\packages\libutki.1.1.228\build\native\libutki.targets" Condition="Exists('..\packages\libutki.1.1.228\build\native\libutki.targets')" />
-    <Import Project="..\packages\libmikroxml.0.1.58\build\native\libmikroxml.targets" Condition="Exists('..\packages\libmikroxml.0.1.58\build\native\libmikroxml.targets')" />
-    <Import Project="..\packages\libopros.1.0.91\build\native\libopros.targets" Condition="Exists('..\packages\libopros.1.0.91\build\native\libopros.targets')" />
-    <Import Project="..\packages\libnitki.1.0.81\build\native\libnitki.targets" Condition="Exists('..\packages\libnitki.1.0.81\build\native\libnitki.targets')" />
-    <Import Project="..\packages\libr4.1.0.79\build\native\libr4.targets" Condition="Exists('..\packages\libr4.1.0.79\build\native\libr4.targets')" />
-    <Import Project="..\packages\libpapki.1.0.134\build\native\libpapki.targets" Condition="Exists('..\packages\libpapki.1.0.134\build\native\libpapki.targets')" />
-    <Import Project="..\packages\libcssom.0.2.8\build\native\libcssom.targets" Condition="Exists('..\packages\libcssom.0.2.8\build\native\libcssom.targets')" />
-    <Import Project="..\packages\librasterimage.0.1.11\build\native\librasterimage.targets" Condition="Exists('..\packages\librasterimage.0.1.11\build\native\librasterimage.targets')" />
-    <Import Project="..\packages\libsvgdom.0.4.11\build\native\libsvgdom.targets" Condition="Exists('..\packages\libsvgdom.0.4.11\build\native\libsvgdom.targets')" />
-    <Import Project="..\packages\libsvgren.0.6.10\build\native\libsvgren.targets" Condition="Exists('..\packages\libsvgren.0.6.10\build\native\libsvgren.targets')" />
     <Import Project="..\packages\libtml.0.2.17\build\native\libtml.targets" Condition="Exists('..\packages\libtml.0.2.17\build\native\libtml.targets')" />
-    <Import Project="..\packages\libruis.0.5.213\build\native\libruis.targets" Condition="Exists('..\packages\libruis.0.5.213\build\native\libruis.targets')" />
-    <Import Project="..\packages\libruis-render-opengl.0.1.65\build\native\libruis-render-opengl.targets" Condition="Exists('..\packages\libruis-render-opengl.0.1.65\build\native\libruis-render-opengl.targets')" />
+    <Import Project="..\packages\libagg.2.8.24\build\native\libagg.targets" Condition="Exists('..\packages\libagg.2.8.24\build\native\libagg.targets')" />
+    <Import Project="..\packages\libutki.1.1.235\build\native\libutki.targets" Condition="Exists('..\packages\libutki.1.1.235\build\native\libutki.targets')" />
+    <Import Project="..\packages\libmikroxml.0.1.61\build\native\libmikroxml.targets" Condition="Exists('..\packages\libmikroxml.0.1.61\build\native\libmikroxml.targets')" />
+    <Import Project="..\packages\libopros.1.0.93\build\native\libopros.targets" Condition="Exists('..\packages\libopros.1.0.93\build\native\libopros.targets')" />
+    <Import Project="..\packages\libnitki.1.0.83\build\native\libnitki.targets" Condition="Exists('..\packages\libnitki.1.0.83\build\native\libnitki.targets')" />
+    <Import Project="..\packages\libr4.1.0.82\build\native\libr4.targets" Condition="Exists('..\packages\libr4.1.0.82\build\native\libr4.targets')" />
+    <Import Project="..\packages\libpapki.1.0.138\build\native\libpapki.targets" Condition="Exists('..\packages\libpapki.1.0.138\build\native\libpapki.targets')" />
+    <Import Project="..\packages\libcssom.0.2.10\build\native\libcssom.targets" Condition="Exists('..\packages\libcssom.0.2.10\build\native\libcssom.targets')" />
+    <Import Project="..\packages\librasterimage.0.1.13\build\native\librasterimage.targets" Condition="Exists('..\packages\librasterimage.0.1.13\build\native\librasterimage.targets')" />
+    <Import Project="..\packages\libsvgdom.0.4.13\build\native\libsvgdom.targets" Condition="Exists('..\packages\libsvgdom.0.4.13\build\native\libsvgdom.targets')" />
+    <Import Project="..\packages\libsvgren.0.6.13\build\native\libsvgren.targets" Condition="Exists('..\packages\libsvgren.0.6.13\build\native\libsvgren.targets')" />
+    <Import Project="..\packages\libruis.0.5.218\build\native\libruis.targets" Condition="Exists('..\packages\libruis.0.5.218\build\native\libruis.targets')" />
+    <Import Project="..\packages\libruis-render-opengl.0.1.67\build\native\libruis-render-opengl.targets" Condition="Exists('..\packages\libruis-render-opengl.0.1.67\build\native\libruis-render-opengl.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
@@ -608,19 +608,19 @@
     <Error Condition="!Exists('..\packages\libjpeg_static.6.1.1.14\build\native\libjpeg_static.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libjpeg_static.6.1.1.14\build\native\libjpeg_static.targets'))" />
     <Error Condition="!Exists('..\packages\zlib_static.1.2.11.12\build\native\zlib_static.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\zlib_static.1.2.11.12\build\native\zlib_static.targets'))" />
     <Error Condition="!Exists('..\packages\libpng_static.1.6.39.1\build\native\libpng_static.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libpng_static.1.6.39.1\build\native\libpng_static.targets'))" />
-    <Error Condition="!Exists('..\packages\libagg.2.8.22\build\native\libagg.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libagg.2.8.22\build\native\libagg.targets'))" />
-    <Error Condition="!Exists('..\packages\libutki.1.1.228\build\native\libutki.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libutki.1.1.228\build\native\libutki.targets'))" />
-    <Error Condition="!Exists('..\packages\libmikroxml.0.1.58\build\native\libmikroxml.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libmikroxml.0.1.58\build\native\libmikroxml.targets'))" />
-    <Error Condition="!Exists('..\packages\libopros.1.0.91\build\native\libopros.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libopros.1.0.91\build\native\libopros.targets'))" />
-    <Error Condition="!Exists('..\packages\libnitki.1.0.81\build\native\libnitki.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libnitki.1.0.81\build\native\libnitki.targets'))" />
-    <Error Condition="!Exists('..\packages\libr4.1.0.79\build\native\libr4.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libr4.1.0.79\build\native\libr4.targets'))" />
-    <Error Condition="!Exists('..\packages\libpapki.1.0.134\build\native\libpapki.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libpapki.1.0.134\build\native\libpapki.targets'))" />
-    <Error Condition="!Exists('..\packages\libcssom.0.2.8\build\native\libcssom.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libcssom.0.2.8\build\native\libcssom.targets'))" />
-    <Error Condition="!Exists('..\packages\librasterimage.0.1.11\build\native\librasterimage.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\librasterimage.0.1.11\build\native\librasterimage.targets'))" />
-    <Error Condition="!Exists('..\packages\libsvgdom.0.4.11\build\native\libsvgdom.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libsvgdom.0.4.11\build\native\libsvgdom.targets'))" />
-    <Error Condition="!Exists('..\packages\libsvgren.0.6.10\build\native\libsvgren.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libsvgren.0.6.10\build\native\libsvgren.targets'))" />
     <Error Condition="!Exists('..\packages\libtml.0.2.17\build\native\libtml.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libtml.0.2.17\build\native\libtml.targets'))" />
-    <Error Condition="!Exists('..\packages\libruis.0.5.213\build\native\libruis.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libruis.0.5.213\build\native\libruis.targets'))" />
-    <Error Condition="!Exists('..\packages\libruis-render-opengl.0.1.65\build\native\libruis-render-opengl.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libruis-render-opengl.0.1.65\build\native\libruis-render-opengl.targets'))" />
+    <Error Condition="!Exists('..\packages\libagg.2.8.24\build\native\libagg.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libagg.2.8.24\build\native\libagg.targets'))" />
+    <Error Condition="!Exists('..\packages\libutki.1.1.235\build\native\libutki.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libutki.1.1.235\build\native\libutki.targets'))" />
+    <Error Condition="!Exists('..\packages\libmikroxml.0.1.61\build\native\libmikroxml.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libmikroxml.0.1.61\build\native\libmikroxml.targets'))" />
+    <Error Condition="!Exists('..\packages\libopros.1.0.93\build\native\libopros.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libopros.1.0.93\build\native\libopros.targets'))" />
+    <Error Condition="!Exists('..\packages\libnitki.1.0.83\build\native\libnitki.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libnitki.1.0.83\build\native\libnitki.targets'))" />
+    <Error Condition="!Exists('..\packages\libr4.1.0.82\build\native\libr4.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libr4.1.0.82\build\native\libr4.targets'))" />
+    <Error Condition="!Exists('..\packages\libpapki.1.0.138\build\native\libpapki.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libpapki.1.0.138\build\native\libpapki.targets'))" />
+    <Error Condition="!Exists('..\packages\libcssom.0.2.10\build\native\libcssom.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libcssom.0.2.10\build\native\libcssom.targets'))" />
+    <Error Condition="!Exists('..\packages\librasterimage.0.1.13\build\native\librasterimage.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\librasterimage.0.1.13\build\native\librasterimage.targets'))" />
+    <Error Condition="!Exists('..\packages\libsvgdom.0.4.13\build\native\libsvgdom.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libsvgdom.0.4.13\build\native\libsvgdom.targets'))" />
+    <Error Condition="!Exists('..\packages\libsvgren.0.6.13\build\native\libsvgren.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libsvgren.0.6.13\build\native\libsvgren.targets'))" />
+    <Error Condition="!Exists('..\packages\libruis.0.5.218\build\native\libruis.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libruis.0.5.218\build\native\libruis.targets'))" />
+    <Error Condition="!Exists('..\packages\libruis-render-opengl.0.1.67\build\native\libruis-render-opengl.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libruis-render-opengl.0.1.67\build\native\libruis-render-opengl.targets'))" />
   </Target>
 </Project>
\ No newline at end of file
diff --git a/msvs_solution/libruisapp/packages.config b/msvs_solution/libruisapp/packages.config
index d9a864c..a1f893b 100755
--- a/msvs_solution/libruisapp/packages.config
+++ b/msvs_solution/libruisapp/packages.config
@@ -2,21 +2,21 @@
 <packages>
   <package id="freetype_static" version="2.10.1.12" targetFramework="native" />
   <package id="glew.v140" version="1.12.0" targetFramework="native" />
-  <package id="libagg" version="2.8.22" targetFramework="native" />
-  <package id="libcssom" version="0.2.8" targetFramework="native" />
+  <package id="libagg" version="2.8.24" targetFramework="native" />
+  <package id="libcssom" version="0.2.10" targetFramework="native" />
   <package id="libjpeg_static" version="6.1.1.14" targetFramework="native" />
-  <package id="libmikroxml" version="0.1.58" targetFramework="native" />
-  <package id="libnitki" version="1.0.81" targetFramework="native" />
-  <package id="libopros" version="1.0.91" targetFramework="native" />
-  <package id="libpapki" version="1.0.134" targetFramework="native" />
+  <package id="libmikroxml" version="0.1.61" targetFramework="native" />
+  <package id="libnitki" version="1.0.83" targetFramework="native" />
+  <package id="libopros" version="1.0.93" targetFramework="native" />
+  <package id="libpapki" version="1.0.138" targetFramework="native" />
   <package id="libpng_static" version="1.6.39.1" targetFramework="native" />
-  <package id="libr4" version="1.0.79" targetFramework="native" />
-  <package id="librasterimage" version="0.1.11" targetFramework="native" />
-  <package id="libruis" version="0.5.213" targetFramework="native" />
-  <package id="libruis-render-opengl" version="0.1.65" targetFramework="native" />
-  <package id="libsvgdom" version="0.4.11" targetFramework="native" />
-  <package id="libsvgren" version="0.6.10" targetFramework="native" />
+  <package id="libr4" version="1.0.82" targetFramework="native" />
+  <package id="librasterimage" version="0.1.13" targetFramework="native" />
+  <package id="libruis" version="0.5.218" targetFramework="native" />
+  <package id="libruis-render-opengl" version="0.1.67" targetFramework="native" />
+  <package id="libsvgdom" version="0.4.13" targetFramework="native" />
+  <package id="libsvgren" version="0.6.13" targetFramework="native" />
   <package id="libtml" version="0.2.17" targetFramework="native" />
-  <package id="libutki" version="1.1.228" targetFramework="native" />
+  <package id="libutki" version="1.1.235" targetFramework="native" />
   <package id="zlib_static" version="1.2.11.12" targetFramework="native" />
 </packages>
\ No newline at end of file
diff --git a/msvs_solution/tests/packages.config b/msvs_solution/tests/packages.config
index d9a864c..a1f893b 100755
--- a/msvs_solution/tests/packages.config
+++ b/msvs_solution/tests/packages.config
@@ -2,21 +2,21 @@
 <packages>
   <package id="freetype_static" version="2.10.1.12" targetFramework="native" />
   <package id="glew.v140" version="1.12.0" targetFramework="native" />
-  <package id="libagg" version="2.8.22" targetFramework="native" />
-  <package id="libcssom" version="0.2.8" targetFramework="native" />
+  <package id="libagg" version="2.8.24" targetFramework="native" />
+  <package id="libcssom" version="0.2.10" targetFramework="native" />
   <package id="libjpeg_static" version="6.1.1.14" targetFramework="native" />
-  <package id="libmikroxml" version="0.1.58" targetFramework="native" />
-  <package id="libnitki" version="1.0.81" targetFramework="native" />
-  <package id="libopros" version="1.0.91" targetFramework="native" />
-  <package id="libpapki" version="1.0.134" targetFramework="native" />
+  <package id="libmikroxml" version="0.1.61" targetFramework="native" />
+  <package id="libnitki" version="1.0.83" targetFramework="native" />
+  <package id="libopros" version="1.0.93" targetFramework="native" />
+  <package id="libpapki" version="1.0.138" targetFramework="native" />
   <package id="libpng_static" version="1.6.39.1" targetFramework="native" />
-  <package id="libr4" version="1.0.79" targetFramework="native" />
-  <package id="librasterimage" version="0.1.11" targetFramework="native" />
-  <package id="libruis" version="0.5.213" targetFramework="native" />
-  <package id="libruis-render-opengl" version="0.1.65" targetFramework="native" />
-  <package id="libsvgdom" version="0.4.11" targetFramework="native" />
-  <package id="libsvgren" version="0.6.10" targetFramework="native" />
+  <package id="libr4" version="1.0.82" targetFramework="native" />
+  <package id="librasterimage" version="0.1.13" targetFramework="native" />
+  <package id="libruis" version="0.5.218" targetFramework="native" />
+  <package id="libruis-render-opengl" version="0.1.67" targetFramework="native" />
+  <package id="libsvgdom" version="0.4.13" targetFramework="native" />
+  <package id="libsvgren" version="0.6.13" targetFramework="native" />
   <package id="libtml" version="0.2.17" targetFramework="native" />
-  <package id="libutki" version="1.1.228" targetFramework="native" />
+  <package id="libutki" version="1.1.235" targetFramework="native" />
   <package id="zlib_static" version="1.2.11.12" targetFramework="native" />
 </packages>
\ No newline at end of file
diff --git a/msvs_solution/tests/tests.vcxproj b/msvs_solution/tests/tests.vcxproj
index 4269c1a..f6f4f17 100755
--- a/msvs_solution/tests/tests.vcxproj
+++ b/msvs_solution/tests/tests.vcxproj
@@ -324,7 +324,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
       <AdditionalIncludeDirectories>..\..\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
@@ -340,7 +340,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
       <AdditionalIncludeDirectories>..\..\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
@@ -386,7 +386,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
       <AdditionalIncludeDirectories>..\..\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
@@ -402,7 +402,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
       <AdditionalIncludeDirectories>..\..\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
@@ -458,7 +458,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
       <AdditionalIncludeDirectories>..\..\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
@@ -478,7 +478,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
       <AdditionalIncludeDirectories>..\..\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
@@ -536,7 +536,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
       <AdditionalIncludeDirectories>..\..\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
@@ -556,7 +556,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <LanguageStandard>stdcpp17</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
       <AdditionalIncludeDirectories>..\..\src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
@@ -585,20 +585,20 @@
     <Import Project="..\packages\libjpeg_static.6.1.1.14\build\native\libjpeg_static.targets" Condition="Exists('..\packages\libjpeg_static.6.1.1.14\build\native\libjpeg_static.targets')" />
     <Import Project="..\packages\zlib_static.1.2.11.12\build\native\zlib_static.targets" Condition="Exists('..\packages\zlib_static.1.2.11.12\build\native\zlib_static.targets')" />
     <Import Project="..\packages\libpng_static.1.6.39.1\build\native\libpng_static.targets" Condition="Exists('..\packages\libpng_static.1.6.39.1\build\native\libpng_static.targets')" />
-    <Import Project="..\packages\libagg.2.8.22\build\native\libagg.targets" Condition="Exists('..\packages\libagg.2.8.22\build\native\libagg.targets')" />
-    <Import Project="..\packages\libutki.1.1.228\build\native\libutki.targets" Condition="Exists('..\packages\libutki.1.1.228\build\native\libutki.targets')" />
-    <Import Project="..\packages\libmikroxml.0.1.58\build\native\libmikroxml.targets" Condition="Exists('..\packages\libmikroxml.0.1.58\build\native\libmikroxml.targets')" />
-    <Import Project="..\packages\libopros.1.0.91\build\native\libopros.targets" Condition="Exists('..\packages\libopros.1.0.91\build\native\libopros.targets')" />
-    <Import Project="..\packages\libnitki.1.0.81\build\native\libnitki.targets" Condition="Exists('..\packages\libnitki.1.0.81\build\native\libnitki.targets')" />
-    <Import Project="..\packages\libr4.1.0.79\build\native\libr4.targets" Condition="Exists('..\packages\libr4.1.0.79\build\native\libr4.targets')" />
-    <Import Project="..\packages\libpapki.1.0.134\build\native\libpapki.targets" Condition="Exists('..\packages\libpapki.1.0.134\build\native\libpapki.targets')" />
-    <Import Project="..\packages\libcssom.0.2.8\build\native\libcssom.targets" Condition="Exists('..\packages\libcssom.0.2.8\build\native\libcssom.targets')" />
-    <Import Project="..\packages\librasterimage.0.1.11\build\native\librasterimage.targets" Condition="Exists('..\packages\librasterimage.0.1.11\build\native\librasterimage.targets')" />
-    <Import Project="..\packages\libsvgdom.0.4.11\build\native\libsvgdom.targets" Condition="Exists('..\packages\libsvgdom.0.4.11\build\native\libsvgdom.targets')" />
-    <Import Project="..\packages\libsvgren.0.6.10\build\native\libsvgren.targets" Condition="Exists('..\packages\libsvgren.0.6.10\build\native\libsvgren.targets')" />
     <Import Project="..\packages\libtml.0.2.17\build\native\libtml.targets" Condition="Exists('..\packages\libtml.0.2.17\build\native\libtml.targets')" />
-    <Import Project="..\packages\libruis.0.5.213\build\native\libruis.targets" Condition="Exists('..\packages\libruis.0.5.213\build\native\libruis.targets')" />
-    <Import Project="..\packages\libruis-render-opengl.0.1.65\build\native\libruis-render-opengl.targets" Condition="Exists('..\packages\libruis-render-opengl.0.1.65\build\native\libruis-render-opengl.targets')" />
+    <Import Project="..\packages\libagg.2.8.24\build\native\libagg.targets" Condition="Exists('..\packages\libagg.2.8.24\build\native\libagg.targets')" />
+    <Import Project="..\packages\libutki.1.1.235\build\native\libutki.targets" Condition="Exists('..\packages\libutki.1.1.235\build\native\libutki.targets')" />
+    <Import Project="..\packages\libmikroxml.0.1.61\build\native\libmikroxml.targets" Condition="Exists('..\packages\libmikroxml.0.1.61\build\native\libmikroxml.targets')" />
+    <Import Project="..\packages\libopros.1.0.93\build\native\libopros.targets" Condition="Exists('..\packages\libopros.1.0.93\build\native\libopros.targets')" />
+    <Import Project="..\packages\libnitki.1.0.83\build\native\libnitki.targets" Condition="Exists('..\packages\libnitki.1.0.83\build\native\libnitki.targets')" />
+    <Import Project="..\packages\libr4.1.0.82\build\native\libr4.targets" Condition="Exists('..\packages\libr4.1.0.82\build\native\libr4.targets')" />
+    <Import Project="..\packages\libpapki.1.0.138\build\native\libpapki.targets" Condition="Exists('..\packages\libpapki.1.0.138\build\native\libpapki.targets')" />
+    <Import Project="..\packages\libcssom.0.2.10\build\native\libcssom.targets" Condition="Exists('..\packages\libcssom.0.2.10\build\native\libcssom.targets')" />
+    <Import Project="..\packages\librasterimage.0.1.13\build\native\librasterimage.targets" Condition="Exists('..\packages\librasterimage.0.1.13\build\native\librasterimage.targets')" />
+    <Import Project="..\packages\libsvgdom.0.4.13\build\native\libsvgdom.targets" Condition="Exists('..\packages\libsvgdom.0.4.13\build\native\libsvgdom.targets')" />
+    <Import Project="..\packages\libsvgren.0.6.13\build\native\libsvgren.targets" Condition="Exists('..\packages\libsvgren.0.6.13\build\native\libsvgren.targets')" />
+    <Import Project="..\packages\libruis.0.5.218\build\native\libruis.targets" Condition="Exists('..\packages\libruis.0.5.218\build\native\libruis.targets')" />
+    <Import Project="..\packages\libruis-render-opengl.0.1.67\build\native\libruis-render-opengl.targets" Condition="Exists('..\packages\libruis-render-opengl.0.1.67\build\native\libruis-render-opengl.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
@@ -609,19 +609,19 @@
     <Error Condition="!Exists('..\packages\libjpeg_static.6.1.1.14\build\native\libjpeg_static.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libjpeg_static.6.1.1.14\build\native\libjpeg_static.targets'))" />
     <Error Condition="!Exists('..\packages\zlib_static.1.2.11.12\build\native\zlib_static.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\zlib_static.1.2.11.12\build\native\zlib_static.targets'))" />
     <Error Condition="!Exists('..\packages\libpng_static.1.6.39.1\build\native\libpng_static.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libpng_static.1.6.39.1\build\native\libpng_static.targets'))" />
-    <Error Condition="!Exists('..\packages\libagg.2.8.22\build\native\libagg.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libagg.2.8.22\build\native\libagg.targets'))" />
-    <Error Condition="!Exists('..\packages\libutki.1.1.228\build\native\libutki.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libutki.1.1.228\build\native\libutki.targets'))" />
-    <Error Condition="!Exists('..\packages\libmikroxml.0.1.58\build\native\libmikroxml.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libmikroxml.0.1.58\build\native\libmikroxml.targets'))" />
-    <Error Condition="!Exists('..\packages\libopros.1.0.91\build\native\libopros.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libopros.1.0.91\build\native\libopros.targets'))" />
-    <Error Condition="!Exists('..\packages\libnitki.1.0.81\build\native\libnitki.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libnitki.1.0.81\build\native\libnitki.targets'))" />
-    <Error Condition="!Exists('..\packages\libr4.1.0.79\build\native\libr4.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libr4.1.0.79\build\native\libr4.targets'))" />
-    <Error Condition="!Exists('..\packages\libpapki.1.0.134\build\native\libpapki.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libpapki.1.0.134\build\native\libpapki.targets'))" />
-    <Error Condition="!Exists('..\packages\libcssom.0.2.8\build\native\libcssom.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libcssom.0.2.8\build\native\libcssom.targets'))" />
-    <Error Condition="!Exists('..\packages\librasterimage.0.1.11\build\native\librasterimage.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\librasterimage.0.1.11\build\native\librasterimage.targets'))" />
-    <Error Condition="!Exists('..\packages\libsvgdom.0.4.11\build\native\libsvgdom.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libsvgdom.0.4.11\build\native\libsvgdom.targets'))" />
-    <Error Condition="!Exists('..\packages\libsvgren.0.6.10\build\native\libsvgren.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libsvgren.0.6.10\build\native\libsvgren.targets'))" />
     <Error Condition="!Exists('..\packages\libtml.0.2.17\build\native\libtml.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libtml.0.2.17\build\native\libtml.targets'))" />
-    <Error Condition="!Exists('..\packages\libruis.0.5.213\build\native\libruis.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libruis.0.5.213\build\native\libruis.targets'))" />
-    <Error Condition="!Exists('..\packages\libruis-render-opengl.0.1.65\build\native\libruis-render-opengl.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libruis-render-opengl.0.1.65\build\native\libruis-render-opengl.targets'))" />
+    <Error Condition="!Exists('..\packages\libagg.2.8.24\build\native\libagg.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libagg.2.8.24\build\native\libagg.targets'))" />
+    <Error Condition="!Exists('..\packages\libutki.1.1.235\build\native\libutki.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libutki.1.1.235\build\native\libutki.targets'))" />
+    <Error Condition="!Exists('..\packages\libmikroxml.0.1.61\build\native\libmikroxml.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libmikroxml.0.1.61\build\native\libmikroxml.targets'))" />
+    <Error Condition="!Exists('..\packages\libopros.1.0.93\build\native\libopros.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libopros.1.0.93\build\native\libopros.targets'))" />
+    <Error Condition="!Exists('..\packages\libnitki.1.0.83\build\native\libnitki.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libnitki.1.0.83\build\native\libnitki.targets'))" />
+    <Error Condition="!Exists('..\packages\libr4.1.0.82\build\native\libr4.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libr4.1.0.82\build\native\libr4.targets'))" />
+    <Error Condition="!Exists('..\packages\libpapki.1.0.138\build\native\libpapki.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libpapki.1.0.138\build\native\libpapki.targets'))" />
+    <Error Condition="!Exists('..\packages\libcssom.0.2.10\build\native\libcssom.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libcssom.0.2.10\build\native\libcssom.targets'))" />
+    <Error Condition="!Exists('..\packages\librasterimage.0.1.13\build\native\librasterimage.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\librasterimage.0.1.13\build\native\librasterimage.targets'))" />
+    <Error Condition="!Exists('..\packages\libsvgdom.0.4.13\build\native\libsvgdom.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libsvgdom.0.4.13\build\native\libsvgdom.targets'))" />
+    <Error Condition="!Exists('..\packages\libsvgren.0.6.13\build\native\libsvgren.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libsvgren.0.6.13\build\native\libsvgren.targets'))" />
+    <Error Condition="!Exists('..\packages\libruis.0.5.218\build\native\libruis.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libruis.0.5.218\build\native\libruis.targets'))" />
+    <Error Condition="!Exists('..\packages\libruis-render-opengl.0.1.67\build\native\libruis-render-opengl.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\libruis-render-opengl.0.1.67\build\native\libruis-render-opengl.targets'))" />
   </Target>
 </Project>
\ No newline at end of file