diff --git a/.github/workflows/master.yml b/.github/workflows/master.yml
index d5ab189b01..524d3397d1 100644
--- a/.github/workflows/master.yml
+++ b/.github/workflows/master.yml
@@ -7,62 +7,47 @@ env:
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
   net60:
-    name: '6.0'
+    name: '8.0'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: '8.0.x'
       - run: ./Build/CI/tests.sh
         env:
           BUILD_ARGS: /p:AdditionalDefineConstants=SECP256K1_VERIFY
-          Framework: net6.0
-  dotnetcore31:
-    name: '3.1'
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-dotnet@v1
-        with:
-          dotnet-version: '6.0.x'
-      - uses: actions/setup-dotnet@v1
-        with:
-          dotnet-version: '3.1.x'
-      - run: ./Build/CI/tests.sh
-        env:
-          BUILD_ARGS: /p:AdditionalDefineConstants=SECP256K1_VERIFY
-          Framework: netcoreapp3.1
+          Framework: net8.0
   dotnetcore60standard20:
-    name: '6.0 with netstandard2.0'
+    name: '8.0 with netstandard2.0'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: '8.0.x'
       - run: ./Build/CI/tests.sh
         env:
           BUILD_ARGS: /p:TargetFrameworkOverride=netstandard2.0
-          Framework: net6.0
+          Framework: net8.0
   dotnetcore60macos:
-    name: '6.0 on Mac-OS'
+    name: '8.0 on Mac-OS'
     runs-on: macOS-latest
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: '8.0.x'
       - run: ./Build/CI/tests.sh
         env:
-          Framework: net6.0
+          Framework: net8.0
   dotnetcore60winfx:
-    name: '6.0 on Windows NetFramework472'
+    name: '8.0 on Windows NetFramework472'
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: '8.0.x'
       - run: dotnet clean -c Release ./NBitcoin.Tests/NBitcoin.Tests.csproj && dotnet nuget locals all --clear
       - run: dotnet test -c Release -v n ./NBitcoin.Tests/NBitcoin.Tests.csproj --filter "RestClient=RestClient|RPCClient=RPCClient|Protocol=Protocol|Core=Core|UnitTest=UnitTest|Altcoins=Altcoins|PropertyTest=PropertyTest" -p:ParallelizeTestCollections=false -f net472
diff --git a/NBitcoin.Altcoins/NBitcoin.Altcoins.csproj b/NBitcoin.Altcoins/NBitcoin.Altcoins.csproj
index 03900d32a2..fcf291ee02 100644
--- a/NBitcoin.Altcoins/NBitcoin.Altcoins.csproj
+++ b/NBitcoin.Altcoins/NBitcoin.Altcoins.csproj
@@ -12,7 +12,7 @@
 		<RepositoryType>git</RepositoryType>
 	</PropertyGroup>
 	<PropertyGroup>
-		<TargetFrameworks>net6.0;net472;netstandard1.3;netstandard2.0;netstandard2.1</TargetFrameworks>
+		<TargetFrameworks>net8.0;net472;netstandard1.3;netstandard2.0;netstandard2.1</TargetFrameworks>
 		<TargetFrameworks Condition="'$(BuildingInsideVisualStudio)' == 'true'">netstandard2.1</TargetFrameworks>
     <TargetFrameworks Condition="'$(TargetFrameworkOverride)' != ''">$(TargetFrameworkOverride)</TargetFrameworks>
 		<NoWarn>1591;1573;1572;1584;1570;3021</NoWarn>
@@ -22,7 +22,7 @@
 	<ItemGroup>
 		<ProjectReference Include="..\NBitcoin\NBitcoin.csproj" />
 	</ItemGroup>
-  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard2.1' Or '$(TargetFramework)' == 'net6.0'">
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard2.1' Or '$(TargetFramework)' == 'net8.0'">
     <DefineConstants>$(DefineConstants);HAS_SPAN</DefineConstants>
     <RemoveBC>true</RemoveBC>
   </PropertyGroup>
diff --git a/NBitcoin.Bench/NBitcoin.Bench.csproj b/NBitcoin.Bench/NBitcoin.Bench.csproj
index cfd187a5d5..4d46889be3 100644
--- a/NBitcoin.Bench/NBitcoin.Bench.csproj
+++ b/NBitcoin.Bench/NBitcoin.Bench.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFrameworks>net6.0;netcoreapp3.1</TargetFrameworks>
+    <TargetFrameworks>net8.0;netcoreapp3.1</TargetFrameworks>
     <DebugType>pdbonly</DebugType>
     <DebugSymbols>true</DebugSymbols>
   </PropertyGroup>
diff --git a/NBitcoin.Secp256k1/NBitcoin.Secp256k1.csproj b/NBitcoin.Secp256k1/NBitcoin.Secp256k1.csproj
index c5837e99c5..c4a7a52e4d 100644
--- a/NBitcoin.Secp256k1/NBitcoin.Secp256k1.csproj
+++ b/NBitcoin.Secp256k1/NBitcoin.Secp256k1.csproj
@@ -11,7 +11,7 @@
 		<RepositoryType>git</RepositoryType>
 	</PropertyGroup>
   <PropertyGroup>
-    <TargetFrameworks>net6.0;netstandard2.1</TargetFrameworks>
+    <TargetFrameworks>net8.0;netstandard2.1</TargetFrameworks>
     <Version Condition=" '$(Version)' == '' ">3.1.4</Version>
   </PropertyGroup>
   <PropertyGroup>
diff --git a/NBitcoin.Tests/NBitcoin.Tests.csproj b/NBitcoin.Tests/NBitcoin.Tests.csproj
index 06a46c31ad..e3310bd3fb 100644
--- a/NBitcoin.Tests/NBitcoin.Tests.csproj
+++ b/NBitcoin.Tests/NBitcoin.Tests.csproj
@@ -7,8 +7,8 @@
 		<LangVersion>9.0</LangVersion>
 	</PropertyGroup>
   <PropertyGroup>
-	  <TargetFrameworks>net6.0;netcoreapp3.1;net472</TargetFrameworks>
-	  <TargetFrameworks Condition="'$(BuildingInsideVisualStudio)' == 'true'">net6.0</TargetFrameworks>
+	  <TargetFrameworks>net8.0;netcoreapp3.1;net472</TargetFrameworks>
+	  <TargetFrameworks Condition="'$(BuildingInsideVisualStudio)' == 'true'">net8.0</TargetFrameworks>
 	  <!--<StartupObject>NBitcoin.Tests.Program</StartupObject>-->
 	  <!--<TargetFrameworks Condition="'$(BuildingInsideVisualStudio)' == 'true' And '$(MSBuildRuntimeType)' == 'Core' ">netcoreapp2.1</TargetFrameworks>-->
 	  <!--<NoWarn>CS0618</NoWarn>-->
@@ -25,7 +25,7 @@
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netcoreapp2.1' Or '$(TargetFramework)' == 'netcoreapp3.1' ">
     <DefineConstants>$(DefineConstants);NETCORE;NOTRACESOURCE;NOCUSTOMSSLVALIDATION;NOHTTPSERVER</DefineConstants>
   </PropertyGroup>
-  <PropertyGroup Condition=" ('$(TargetFramework)' == 'netstandard2.1' Or '$(TargetFramework)' == 'net6.0' Or '$(TargetFramework)' == 'netcoreapp3.1') And ( '$(TargetFrameworkOverride)' != 'netstandard2.0' ) ">
+  <PropertyGroup Condition=" ('$(TargetFramework)' == 'netstandard2.1' Or '$(TargetFramework)' == 'net8.0' Or '$(TargetFramework)' == 'netcoreapp3.1') And ( '$(TargetFrameworkOverride)' != 'netstandard2.0' ) ">
     <DefineConstants>$(DefineConstants);NETCORE;HAS_SPAN;NO_BC</DefineConstants>
     <RemoveBC>true</RemoveBC>
   </PropertyGroup>
diff --git a/NBitcoin/NBitcoin.csproj b/NBitcoin/NBitcoin.csproj
index 5bc0482a2f..7dd4383ca1 100644
--- a/NBitcoin/NBitcoin.csproj
+++ b/NBitcoin/NBitcoin.csproj
@@ -20,7 +20,7 @@
 		<EmbedUntrackedSources>true</EmbedUntrackedSources>
 	</PropertyGroup>
 	<PropertyGroup>
-    <TargetFrameworks>net472;netstandard1.3;netstandard1.1;netstandard2.1;netstandard2.0;net6.0</TargetFrameworks>
+    <TargetFrameworks>net472;netstandard1.3;netstandard1.1;netstandard2.1;netstandard2.0;net8.0</TargetFrameworks>
     <TargetFrameworks Condition="'$(TargetFrameworkOverride)' != ''">$(TargetFrameworkOverride)</TargetFrameworks>
 		<NoWarn>1591;1573;1572;1584;1570;3021</NoWarn>
 		<GenerateDocumentationFile>true</GenerateDocumentationFile>
@@ -33,10 +33,10 @@
 	<PropertyGroup Condition=" '$(TargetFramework)' == 'net472' ">
 		<DefineConstants>$(DefineConstants);CLASSICDOTNET;NO_ARRAY_FILL;NULLABLE_SHIMS;NO_SOCKETASYNC</DefineConstants>
 	</PropertyGroup>
-	<PropertyGroup Condition="'$(TargetFramework)' == 'netstandard2.1' Or '$(TargetFramework)' == 'netstandard2.0'  Or '$(TargetFramework)' == 'net6.0'">
+	<PropertyGroup Condition="'$(TargetFramework)' == 'netstandard2.1' Or '$(TargetFramework)' == 'netstandard2.0'  Or '$(TargetFramework)' == 'net8.0'">
 		<DefineConstants>$(DefineConstants);NOCUSTOMSSLVALIDATION;NO_NATIVERIPEMD160</DefineConstants>
 	</PropertyGroup>
-	<PropertyGroup Condition="'$(TargetFramework)' == 'netstandard2.1' Or '$(TargetFramework)' == 'net6.0'">
+	<PropertyGroup Condition="'$(TargetFramework)' == 'netstandard2.1' Or '$(TargetFramework)' == 'net8.0'">
 		<DefineConstants>$(DefineConstants);NETCORE;HAS_SPAN;NO_BC</DefineConstants>
     <RemoveBC>true</RemoveBC>
 	</PropertyGroup>
@@ -57,7 +57,7 @@
 	</PropertyGroup>
 	<ItemGroup>
 		<PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
-		<PackageReference Include="System.Buffers" Version="4.5.0" Condition="'$(TargetFramework)' != 'netstandard2.1' And '$(TargetFramework)' != 'net6.0'" />
+		<PackageReference Include="System.Buffers" Version="4.5.0" Condition="'$(TargetFramework)' != 'netstandard2.1' And '$(TargetFramework)' != 'net8.0'" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="1.0.0" />
 	</ItemGroup>
 	<ItemGroup Condition=" '$(TargetFramework)' == 'net472' ">