diff --git a/.azurepipelines/signlistDebug.txt b/.azurepipelines/signlistDebug.txt
index d408a09fd..e1871d3bf 100644
--- a/.azurepipelines/signlistDebug.txt
+++ b/.azurepipelines/signlistDebug.txt
@@ -1,19 +1,15 @@
-Stack\Opc.Ua.Core\bin\Debug\netstandard2.0\Opc.Ua.Core.dll
 Stack\Opc.Ua.Core\bin\Debug\netstandard2.1\Opc.Ua.Core.dll
 Stack\Opc.Ua.Core\bin\Debug\net48\Opc.Ua.Core.dll
 Stack\Opc.Ua.Core\bin\Debug\net6.0\Opc.Ua.Core.dll
 Stack\Opc.Ua.Core\bin\Debug\net8.0\Opc.Ua.Core.dll
-Stack\Opc.Ua.Bindings.Https\bin\Debug\netstandard2.0\Opc.Ua.Bindings.Https.dll
 Stack\Opc.Ua.Bindings.Https\bin\Debug\netcoreapp3.1\Opc.Ua.Bindings.Https.dll
 Stack\Opc.Ua.Bindings.Https\bin\Debug\net48\Opc.Ua.Bindings.Https.dll
 Stack\Opc.Ua.Bindings.Https\bin\Debug\net6.0\Opc.Ua.Bindings.Https.dll
 Stack\Opc.Ua.Bindings.Https\bin\Debug\net8.0\Opc.Ua.Bindings.Https.dll
-Libraries\Opc.Ua.Server\bin\Debug\netstandard2.0\Opc.Ua.Server.dll
 Libraries\Opc.Ua.Server\bin\Debug\netstandard2.1\Opc.Ua.Server.dll
 Libraries\Opc.Ua.Server\bin\Debug\net48\Opc.Ua.Server.dll
 Libraries\Opc.Ua.Server\bin\Debug\net6.0\Opc.Ua.Server.dll
 Libraries\Opc.Ua.Server\bin\Debug\net8.0\Opc.Ua.Server.dll
-Libraries\Opc.Ua.Client\bin\Debug\netstandard2.0\Opc.Ua.Client.dll
 Libraries\Opc.Ua.Client\bin\Debug\netstandard2.1\Opc.Ua.Client.dll
 Libraries\Opc.Ua.Client\bin\Debug\net48\Opc.Ua.Client.dll
 Libraries\Opc.Ua.Client\bin\Debug\net6.0\Opc.Ua.Client.dll
@@ -22,27 +18,22 @@ Libraries\Opc.Ua.Client.ComplexTypes\bin\Debug\netstandard2.1\Opc.Ua.Client.Comp
 Libraries\Opc.Ua.Client.ComplexTypes\bin\Debug\net48\Opc.Ua.Client.ComplexTypes.dll
 Libraries\Opc.Ua.Client.ComplexTypes\bin\Debug\net6.0\Opc.Ua.Client.ComplexTypes.dll
 Libraries\Opc.Ua.Client.ComplexTypes\bin\Debug\net8.0\Opc.Ua.Client.ComplexTypes.dll
-Libraries\Opc.Ua.Configuration\bin\Debug\netstandard2.0\Opc.Ua.Configuration.dll
 Libraries\Opc.Ua.Configuration\bin\Debug\netstandard2.1\Opc.Ua.Configuration.dll
 Libraries\Opc.Ua.Configuration\bin\Debug\net48\Opc.Ua.Configuration.dll
 Libraries\Opc.Ua.Configuration\bin\Debug\net6.0\Opc.Ua.Configuration.dll
 Libraries\Opc.Ua.Configuration\bin\Debug\net8.0\Opc.Ua.Configuration.dll
-Libraries\Opc.Ua.Gds.Client.Common\bin\Debug\netstandard2.0\Opc.Ua.Gds.Client.Common.dll
 Libraries\Opc.Ua.Gds.Client.Common\bin\Debug\netstandard2.1\Opc.Ua.Gds.Client.Common.dll
 Libraries\Opc.Ua.Gds.Client.Common\bin\Debug\net48\Opc.Ua.Gds.Client.Common.dll
 Libraries\Opc.Ua.Gds.Client.Common\bin\Debug\net6.0\Opc.Ua.Gds.Client.Common.dll
 Libraries\Opc.Ua.Gds.Client.Common\bin\Debug\net8.0\Opc.Ua.Gds.Client.Common.dll
-Libraries\Opc.Ua.Gds.Server.Common\bin\Debug\netstandard2.0\Opc.Ua.Gds.Server.Common.dll
 Libraries\Opc.Ua.Gds.Server.Common\bin\Debug\netstandard2.1\Opc.Ua.Gds.Server.Common.dll
 Libraries\Opc.Ua.Gds.Server.Common\bin\Debug\net48\Opc.Ua.Gds.Server.Common.dll
 Libraries\Opc.Ua.Gds.Server.Common\bin\Debug\net6.0\Opc.Ua.Gds.Server.Common.dll
 Libraries\Opc.Ua.Gds.Server.Common\bin\Debug\net8.0\Opc.Ua.Gds.Server.Common.dll
-Libraries\Opc.Ua.Security.Certificates\bin\Debug\netstandard2.0\Opc.Ua.Security.Certificates.dll
 Libraries\Opc.Ua.Security.Certificates\bin\Debug\netstandard2.1\Opc.Ua.Security.Certificates.dll
 Libraries\Opc.Ua.Security.Certificates\bin\Debug\net48\Opc.Ua.Security.Certificates.dll
 Libraries\Opc.Ua.Security.Certificates\bin\Debug\net6.0\Opc.Ua.Security.Certificates.dll
 Libraries\Opc.Ua.Security.Certificates\bin\Debug\net8.0\Opc.Ua.Security.Certificates.dll
-Libraries\Opc.Ua.PubSub\bin\Debug\netstandard2.0\Opc.Ua.PubSub.dll
 Libraries\Opc.Ua.PubSub\bin\Debug\netstandard2.1\Opc.Ua.PubSub.dll
 Libraries\Opc.Ua.PubSub\bin\Debug\net48\Opc.Ua.PubSub.dll
 Libraries\Opc.Ua.PubSub\bin\Debug\net6.0\Opc.Ua.PubSub.dll
diff --git a/.azurepipelines/signlistRelease.txt b/.azurepipelines/signlistRelease.txt
index 6ec934498..0251c5798 100644
--- a/.azurepipelines/signlistRelease.txt
+++ b/.azurepipelines/signlistRelease.txt
@@ -1,19 +1,15 @@
-Stack\Opc.Ua.Core\bin\Release\netstandard2.0\Opc.Ua.Core.dll
 Stack\Opc.Ua.Core\bin\Release\netstandard2.1\Opc.Ua.Core.dll
 Stack\Opc.Ua.Core\bin\Release\net48\Opc.Ua.Core.dll
 Stack\Opc.Ua.Core\bin\Release\net6.0\Opc.Ua.Core.dll
 Stack\Opc.Ua.Core\bin\Release\net8.0\Opc.Ua.Core.dll
-Stack\Opc.Ua.Bindings.Https\bin\Release\netstandard2.0\Opc.Ua.Bindings.Https.dll
 Stack\Opc.Ua.Bindings.Https\bin\Release\netcoreapp3.1\Opc.Ua.Bindings.Https.dll
 Stack\Opc.Ua.Bindings.Https\bin\Release\net48\Opc.Ua.Bindings.Https.dll
 Stack\Opc.Ua.Bindings.Https\bin\Release\net6.0\Opc.Ua.Bindings.Https.dll
 Stack\Opc.Ua.Bindings.Https\bin\Release\net8.0\Opc.Ua.Bindings.Https.dll
-Libraries\Opc.Ua.Server\bin\Release\netstandard2.0\Opc.Ua.Server.dll
 Libraries\Opc.Ua.Server\bin\Release\netstandard2.1\Opc.Ua.Server.dll
 Libraries\Opc.Ua.Server\bin\Release\net48\Opc.Ua.Server.dll
 Libraries\Opc.Ua.Server\bin\Release\net6.0\Opc.Ua.Server.dll
 Libraries\Opc.Ua.Server\bin\Release\net8.0\Opc.Ua.Server.dll
-Libraries\Opc.Ua.Client\bin\Release\netstandard2.0\Opc.Ua.Client.dll
 Libraries\Opc.Ua.Client\bin\Release\netstandard2.1\Opc.Ua.Client.dll
 Libraries\Opc.Ua.Client\bin\Release\net48\Opc.Ua.Client.dll
 Libraries\Opc.Ua.Client\bin\Release\net6.0\Opc.Ua.Client.dll
@@ -22,27 +18,22 @@ Libraries\Opc.Ua.Client.ComplexTypes\bin\Release\netstandard2.1\Opc.Ua.Client.Co
 Libraries\Opc.Ua.Client.ComplexTypes\bin\Release\net48\Opc.Ua.Client.ComplexTypes.dll
 Libraries\Opc.Ua.Client.ComplexTypes\bin\Release\net6.0\Opc.Ua.Client.ComplexTypes.dll
 Libraries\Opc.Ua.Client.ComplexTypes\bin\Release\net8.0\Opc.Ua.Client.ComplexTypes.dll
-Libraries\Opc.Ua.Configuration\bin\Release\netstandard2.0\Opc.Ua.Configuration.dll
 Libraries\Opc.Ua.Configuration\bin\Release\netstandard2.1\Opc.Ua.Configuration.dll
 Libraries\Opc.Ua.Configuration\bin\Release\net48\Opc.Ua.Configuration.dll
 Libraries\Opc.Ua.Configuration\bin\Release\net6.0\Opc.Ua.Configuration.dll
 Libraries\Opc.Ua.Configuration\bin\Release\net8.0\Opc.Ua.Configuration.dll
-Libraries\Opc.Ua.Gds.Client.Common\bin\Release\netstandard2.0\Opc.Ua.Gds.Client.Common.dll
 Libraries\Opc.Ua.Gds.Client.Common\bin\Release\netstandard2.1\Opc.Ua.Gds.Client.Common.dll
 Libraries\Opc.Ua.Gds.Client.Common\bin\Release\net48\Opc.Ua.Gds.Client.Common.dll
 Libraries\Opc.Ua.Gds.Client.Common\bin\Release\net6.0\Opc.Ua.Gds.Client.Common.dll
 Libraries\Opc.Ua.Gds.Client.Common\bin\Release\net8.0\Opc.Ua.Gds.Client.Common.dll
-Libraries\Opc.Ua.Gds.Server.Common\bin\Release\netstandard2.0\Opc.Ua.Gds.Server.Common.dll
 Libraries\Opc.Ua.Gds.Server.Common\bin\Release\netstandard2.1\Opc.Ua.Gds.Server.Common.dll
 Libraries\Opc.Ua.Gds.Server.Common\bin\Release\net48\Opc.Ua.Gds.Server.Common.dll
 Libraries\Opc.Ua.Gds.Server.Common\bin\Release\net6.0\Opc.Ua.Gds.Server.Common.dll
 Libraries\Opc.Ua.Gds.Server.Common\bin\Release\net8.0\Opc.Ua.Gds.Server.Common.dll
-Libraries\Opc.Ua.Security.Certificates\bin\Release\netstandard2.0\Opc.Ua.Security.Certificates.dll
 Libraries\Opc.Ua.Security.Certificates\bin\Release\netstandard2.1\Opc.Ua.Security.Certificates.dll
 Libraries\Opc.Ua.Security.Certificates\bin\Release\net48\Opc.Ua.Security.Certificates.dll
 Libraries\Opc.Ua.Security.Certificates\bin\Release\net6.0\Opc.Ua.Security.Certificates.dll
 Libraries\Opc.Ua.Security.Certificates\bin\Release\net8.0\Opc.Ua.Security.Certificates.dll
-Libraries\Opc.Ua.PubSub\bin\Release\netstandard2.0\Opc.Ua.PubSub.dll
 Libraries\Opc.Ua.PubSub\bin\Release\netstandard2.1\Opc.Ua.PubSub.dll
 Libraries\Opc.Ua.PubSub\bin\Release\net48\Opc.Ua.PubSub.dll
 Libraries\Opc.Ua.PubSub\bin\Release\net6.0\Opc.Ua.PubSub.dll
diff --git a/Docs/PlatformBuild.md b/Docs/PlatformBuild.md
index 634aeba15..82412d898 100644
--- a/Docs/PlatformBuild.md
+++ b/Docs/PlatformBuild.md
@@ -50,17 +50,17 @@ The following platform is deprecated but can still be built and tested:
 To reduce the ci build overhead and the number of tests to be run in Visual Studio, only the tagged versions (* and **) are part of a qualifying ci build to pass a pull request. 
 All other platforms are only tested in weekly scheduled or manual ci builds.
 
-By default, in Visual Studio only the platforms tagged with (*) are tested. In order to test the other platforms in a command line window or in VS, there is a custom build variable defined to target a specific build. E.g. to target a .NETStandard2.0 build, the test runners are compiled with .NET 6.0 but the class libraries target only netstandard2.0, to force the use of that target.
+By default, in Visual Studio only the platforms tagged with (*) are tested. In order to test the other platforms in a command line window or in VS, there is a custom build variable defined to target a specific build. E.g. to target a .NETStandard2.1 build, the test runners are compiled with .NET 6.0 but the class libraries target only netstandard2.1, to force the use of that target.
 Another option is to test run such a custom target in a command window with a batch file [CustomTest.bat](../Tests/customtest.bat) which is provided to clean up, restore the project and to run the tests. To run the custom tests in Visual Studio a section in [target.props](../targets.props) needs to be uncommented and the target platform value must be set. 
 
 ```xml
 <!-- 
   Uncomment the following lines to test a custom test target 
-  supported values: net462, netstandard2.0, netstandard2.1, net48, net6.0, net8.0
+  supported values: net462, netstandard2.1, net48, net6.0, net8.0
  -->
   
   <PropertyGroup>
-    <CustomTestTarget>netstandard2.0</CustomTestTarget>
+    <CustomTestTarget>netstandard2.1</CustomTestTarget>
   </PropertyGroup> 
 ```
 
diff --git a/Libraries/Opc.Ua.Security.Certificates/Opc.Ua.Security.Certificates.csproj b/Libraries/Opc.Ua.Security.Certificates/Opc.Ua.Security.Certificates.csproj
index a143b33df..eb0c02b6a 100644
--- a/Libraries/Opc.Ua.Security.Certificates/Opc.Ua.Security.Certificates.csproj
+++ b/Libraries/Opc.Ua.Security.Certificates/Opc.Ua.Security.Certificates.csproj
@@ -21,11 +21,6 @@
         <PackageReference Include="BouncyCastle.Cryptography" Version="2.2.1" />
       </ItemGroup>
     </When>
-    <When Condition="'$(TargetFramework)' == 'netstandard2.0'">
-      <ItemGroup>
-        <PackageReference Include="BouncyCastle.Cryptography" Version="2.2.1" />
-      </ItemGroup>
-    </When>
     <Otherwise>
       <PropertyGroup>
         <DefineConstants>$(DefineConstants);ECC_SUPPORT</DefineConstants>
diff --git a/Stack/Opc.Ua.Bindings.Https/Opc.Ua.Bindings.Https.csproj b/Stack/Opc.Ua.Bindings.Https/Opc.Ua.Bindings.Https.csproj
index 2ce01329f..8a7a7b1dd 100644
--- a/Stack/Opc.Ua.Bindings.Https/Opc.Ua.Bindings.Https.csproj
+++ b/Stack/Opc.Ua.Bindings.Https/Opc.Ua.Bindings.Https.csproj
@@ -49,10 +49,6 @@
   <ItemGroup Condition="'$(TargetFramework)' == 'net48'">
     <Reference Include="System.Net.Http" />
   </ItemGroup>
-  
-  <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
-    <PackageReference Include="System.Net.Http" Version="4.3.4" />
-  </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.1'">
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
diff --git a/Stack/Opc.Ua.Core/Opc.Ua.Core.csproj b/Stack/Opc.Ua.Core/Opc.Ua.Core.csproj
index 0c5fa65e7..91c2a0f40 100644
--- a/Stack/Opc.Ua.Core/Opc.Ua.Core.csproj
+++ b/Stack/Opc.Ua.Core/Opc.Ua.Core.csproj
@@ -70,7 +70,7 @@
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
   </ItemGroup>
 
-  <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0' OR '$(TargetFramework)' == 'net462' OR '$(TargetFramework)' == 'net472' OR '$(TargetFramework)' == 'net48'">
+  <ItemGroup Condition="'$(TargetFramework)' == 'net462' OR '$(TargetFramework)' == 'net472' OR '$(TargetFramework)' == 'net48'">
     <PackageReference Include="Microsoft.Bcl.HashCode" Version="1.1.1" />
   </ItemGroup>
 
diff --git a/Tests/Opc.Ua.Security.Certificates.Tests/Opc.Ua.Security.Certificates.Tests.csproj b/Tests/Opc.Ua.Security.Certificates.Tests/Opc.Ua.Security.Certificates.Tests.csproj
index 4a2c93a03..fcb21834d 100644
--- a/Tests/Opc.Ua.Security.Certificates.Tests/Opc.Ua.Security.Certificates.Tests.csproj
+++ b/Tests/Opc.Ua.Security.Certificates.Tests/Opc.Ua.Security.Certificates.Tests.csproj
@@ -10,8 +10,6 @@
   <Choose>
     <When Condition="'$(TargetFramework)' == 'net462'">
     </When>
-    <When Condition="'$(TargetFramework)' == 'netstandard2.0'">
-    </When>
     <Otherwise>
       <PropertyGroup Condition="'$(DisableECCTests)' != 'true'">
         <DefineConstants>$(DefineConstants);ECC_SUPPORT</DefineConstants>
diff --git a/Tests/customtest.bat b/Tests/customtest.bat
index 6cb0d6c79..366a3e37e 100644
--- a/Tests/customtest.bat
+++ b/Tests/customtest.bat
@@ -2,19 +2,19 @@
 setlocal enabledelayedexpansion
 
 echo This script is used to run custom platform tests for the UA Core Library
-echo Supported parameters: net462, netstandard2.0, netstandard2.1, net48, net6.0, net8.0
+echo Supported parameters: net462, netstandard2.1, net48, net6.0, net8.0
 
 REM Check if the target framework parameter is provided
 if "%1"=="" (
     echo Usage: %0 [TargetFramework]
-    echo Allowed values for TargetFramework: net462, netstandard2.0, netstandard2.1, net48, net6.0, net8.0, default
+    echo Allowed values for TargetFramework: net462, netstandard2.1, net48, net6.0, net8.0, default
     goto :eof
 )
 
 REM Check if the provided TargetFramework is valid
-set "validFrameworks= default net462 netstandard2.0 netstandard2.1 net48 net6.0 net8.0"
+set "validFrameworks= default net462 netstandard2.1 net48 net6.0 net8.0"
 if "!validFrameworks: %1 =!"=="%validFrameworks%" (
-    echo Invalid TargetFramework specified. Allowed values are: default, net462, netstandard2.0, netstandard2.1, net48, net6.0, net8.0
+    echo Invalid TargetFramework specified. Allowed values are: default, net462, netstandard2.1, net48, net6.0, net8.0
     goto :eof
 )
 
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 7ee3c240a..9b228f911 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -114,18 +114,6 @@ stages:
       jobnamesuffix: net462
       agents: '@{ windows = "windows-2022" }'
       customtestarget: net462
-- stage: testnetstandard20
-  dependsOn: [build]
-  displayName: 'Test .NETStandard 2.0'
-  condition: and(succeeded(), ne(variables.ScheduledBuild, 'False'))
-  jobs:
-  - template: .azurepipelines/test.yml
-    parameters:
-      framework: net6.0
-      configuration: Release
-      jobnamesuffix: netstandard20
-      agents: '@{ windows = "windows-2019"; linux="ubuntu-20.04"}'
-      customtestarget: netstandard2.0
 - stage: testnetstandard21
   dependsOn: [build]
   displayName: 'Test .NETStandard 2.1'
diff --git a/targets.props b/targets.props
index 4f38acb57..e00879038 100644
--- a/targets.props
+++ b/targets.props
@@ -12,11 +12,11 @@
   A build with all custom targets which are not part of a regular build
   is scheduled once a week in the DevOps build pipeline.
   Uncomment the following lines to test a custom test target 
-  supported values: net462, netstandard2.0, netstandard2.1, net48, net6.0, net8.0
+  supported values: net462, netstandard2.1, net48, net6.0, net8.0
    -->
   <!--
   <PropertyGroup>
-    <CustomTestTarget>netstandard2.0</CustomTestTarget>
+    <CustomTestTarget>netstandard2.1</CustomTestTarget>
   </PropertyGroup> 
   -->
   <Choose>
@@ -34,18 +34,6 @@
         <HttpsTargetFrameworks>net462</HttpsTargetFrameworks>
       </PropertyGroup>
     </When>
-    <When  Condition="'$(CustomTestTarget)' == 'netstandard2.0'">
-      <PropertyGroup>
-        <DisableECCTests>true</DisableECCTests>
-        <AnalysisLevel>preview-all</AnalysisLevel>
-        <AppTargetFrameworks>net6.0</AppTargetFrameworks>
-        <AppTargetFramework>net6.0</AppTargetFramework>
-        <TestsTargetFrameworks>net6.0</TestsTargetFrameworks>
-        <LibTargetFrameworks>netstandard2.0</LibTargetFrameworks>
-        <LibxTargetFrameworks>netstandard2.1</LibxTargetFrameworks>
-        <HttpsTargetFrameworks>netstandard2.0</HttpsTargetFrameworks>
-      </PropertyGroup>
-    </When>
     <When  Condition="'$(CustomTestTarget)' == 'netstandard2.1'">
       <PropertyGroup>
         <AnalysisLevel>preview-all</AnalysisLevel>
@@ -99,9 +87,9 @@
         <AppTargetFrameworks>net6.0;net48</AppTargetFrameworks>
         <AppTargetFramework>net6.0</AppTargetFramework>
         <TestsTargetFrameworks>net48;net6.0</TestsTargetFrameworks>
-        <LibTargetFrameworks>net48;netstandard2.0;netstandard2.1;net6.0;net8.0</LibTargetFrameworks>
+        <LibTargetFrameworks>net48;netstandard2.1;net6.0;net8.0</LibTargetFrameworks>
         <LibxTargetFrameworks>net48;netstandard2.1;net6.0;net8.0</LibxTargetFrameworks>
-        <HttpsTargetFrameworks>net48;netstandard2.0;netcoreapp3.1;net6.0;net8.0</HttpsTargetFrameworks>
+        <HttpsTargetFrameworks>net48;netcoreapp3.1;net6.0;net8.0</HttpsTargetFrameworks>
       </PropertyGroup>
     </When>
     <!-- Visual Studio 2019, supports .NET Framework 4.8 and .NET Core 3.1 -->
@@ -111,9 +99,9 @@
         <AppTargetFrameworks>netcoreapp3.1;net48</AppTargetFrameworks>
         <AppTargetFramework>netcoreapp3.1</AppTargetFramework>
         <TestsTargetFrameworks>net48;netcoreapp3.1</TestsTargetFrameworks>
-        <LibTargetFrameworks>net48;netstandard2.0;netstandard2.1</LibTargetFrameworks>
+        <LibTargetFrameworks>net48;netstandard2.1</LibTargetFrameworks>
         <LibxTargetFrameworks>net48;netstandard2.1</LibxTargetFrameworks>
-        <HttpsTargetFrameworks>net48;netstandard2.0;netcoreapp3.1</HttpsTargetFrameworks>
+        <HttpsTargetFrameworks>net48;netcoreapp3.1</HttpsTargetFrameworks>
       </PropertyGroup>
     </When>
     <!-- Visual Studio 2017 and earlier, support only .NET Framework 4.8 because .NET Core 2.x is end of life. -->