diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f75f90075..bf72f0015 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,9 +3,9 @@ name: ASF-ci
 on: [push, pull_request]
 
 env:
-  DOTNET_CLI_TELEMETRY_OPTOUT: 1
-  DOTNET_NOLOGO: 1
-  DOTNET_SDK_VERSION: 5.0.x
+  DOTNET_CLI_TELEMETRY_OPTOUT: true
+  DOTNET_NOLOGO: true
+  DOTNET_SDK_VERSION: 6.0.x
 
 jobs:
   main:
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index df6da78f6..0208fa0bb 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -5,10 +5,10 @@ on: [push, pull_request]
 env:
   ASF_PRIVATE_SNK: ${{ secrets.ASF_PRIVATE_SNK }}
   CONFIGURATION: Release
-  DOTNET_CLI_TELEMETRY_OPTOUT: 1
-  DOTNET_NOLOGO: 1
-  DOTNET_SDK_VERSION: 5.0.x
-  NET_CORE_VERSION: net5.0
+  DOTNET_CLI_TELEMETRY_OPTOUT: true
+  DOTNET_NOLOGO: true
+  DOTNET_SDK_VERSION: 6.0.x
+  NET_CORE_VERSION: net6.0
   NET_FRAMEWORK_VERSION: net48
   NODE_JS_VERSION: 'lts/*'
   STEAM_TOKEN_DUMPER_NAME: ArchiSteamFarm.OfficialPlugins.SteamTokenDumper
diff --git a/ArchiSteamFarm.CustomPlugins.ExamplePlugin/CatAPI.cs b/ArchiSteamFarm.CustomPlugins.ExamplePlugin/CatAPI.cs
index 4746e4c5f..ebedfb75d 100644
--- a/ArchiSteamFarm.CustomPlugins.ExamplePlugin/CatAPI.cs
+++ b/ArchiSteamFarm.CustomPlugins.ExamplePlugin/CatAPI.cs
@@ -50,7 +50,7 @@ namespace ArchiSteamFarm.CustomPlugins.ExamplePlugin {
 				throw new InvalidOperationException(nameof(response.Content.Link));
 			}
 
-			return Uri.EscapeUriString(response.Content.Link);
+			return Uri.EscapeDataString(response.Content.Link);
 		}
 
 #pragma warning disable CA1812 // False positive, the class is used during json deserialization
diff --git a/ArchiSteamFarm/IPC/Startup.cs b/ArchiSteamFarm/IPC/Startup.cs
index 33529bebc..bf1b7d05c 100644
--- a/ArchiSteamFarm/IPC/Startup.cs
+++ b/ArchiSteamFarm/IPC/Startup.cs
@@ -21,6 +21,7 @@
 
 #if NETFRAMEWORK
 using JustArchiNET.Madness;
+using Microsoft.AspNetCore.Mvc;
 using Newtonsoft.Json.Converters;
 #endif
 using System;
@@ -42,7 +43,6 @@ using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Http.Headers;
 using Microsoft.AspNetCore.HttpOverrides;
 using Microsoft.AspNetCore.Localization;
-using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Net.Http.Headers;
@@ -354,10 +354,10 @@ namespace ArchiSteamFarm.IPC {
 
 			mvc.AddControllersAsServices();
 
+#if NETFRAMEWORK
 			// Use latest compatibility version for MVC
 			mvc.SetCompatibilityVersion(CompatibilityVersion.Latest);
 
-#if NETFRAMEWORK
 			// Add standard formatters
 			mvc.AddFormatterMappings();
 
diff --git a/ArchiSteamFarm/NLog/ArchiLogger.cs b/ArchiSteamFarm/NLog/ArchiLogger.cs
index 0558b90ac..b8e0be1a2 100644
--- a/ArchiSteamFarm/NLog/ArchiLogger.cs
+++ b/ArchiSteamFarm/NLog/ArchiLogger.cs
@@ -20,6 +20,7 @@
 // limitations under the License.
 
 #if NETFRAMEWORK
+using JustArchiNET.Madness;
 using File = JustArchiNET.Madness.FileMadness.File;
 #else
 using File = System.IO.File;
@@ -144,10 +145,10 @@ namespace ArchiSteamFarm.NLog {
 			StringBuilder loggedMessage = new($"{previousMethodName}() {message} {(echo ? "->" : "<-")} ");
 
 			if ((chatGroupID != 0) && (chatID != 0)) {
-				loggedMessage.Append($"{chatGroupID}-{chatID}");
+				loggedMessage.Append(CultureInfo.InvariantCulture, $"{chatGroupID}-{chatID}");
 
 				if (steamID != 0) {
-					loggedMessage.Append($"/{steamID}");
+					loggedMessage.Append(CultureInfo.InvariantCulture, $"/{steamID}");
 				}
 			} else if (steamID != 0) {
 				loggedMessage.Append(steamID);
diff --git a/ArchiSteamFarm/TrimmerRoots.xml b/ArchiSteamFarm/TrimmerRoots.xml
index 5ce336f6d..bbd8e52e8 100644
--- a/ArchiSteamFarm/TrimmerRoots.xml
+++ b/ArchiSteamFarm/TrimmerRoots.xml
@@ -1,8 +1,6 @@
 <linker>
-	<!-- All below entries are dedicated to our official STD plugin -->
 	<assembly fullname="System.Collections.Immutable">
 		<type fullname="System.Collections.Immutable.ImmutableDictionary" />
+		<type fullname="System.Collections.Immutable.ImmutableHashSet" />
 	</assembly>
-
-	<assembly fullname="System.Runtime" />
 </linker>
diff --git a/Directory.Build.props b/Directory.Build.props
index c24ff8dbf..3060bb723 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -59,7 +59,7 @@
 		<SignAssembly>true</SignAssembly>
 		<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
 		<WarningsAsErrors />
-		<WarningsNotAsErrors>CS8002</WarningsNotAsErrors>
+		<WarningsNotAsErrors>CS8002,IL2026,IL2057,IL2072,IL2075,IL2104</WarningsNotAsErrors>
 	</PropertyGroup>
 
 	<!-- Private SNK signing -->
@@ -68,21 +68,22 @@
 		<PublicSign>false</PublicSign>
 	</PropertyGroup>
 
-	<!-- Trimming features as specified on https://docs.microsoft.com/dotnet/core/deploying/trimming-options#trimming-framework-library-features and https://github.com/dotnet/runtime/blob/master/docs/workflow/trimming/feature-switches.md -->
+	<!-- Trimming functionality as described on https://docs.microsoft.com/dotnet/core/deploying/trim-self-contained -->
 	<PropertyGroup Condition="'$(Configuration)' == 'Release'">
 		<DebuggerSupport>false</DebuggerSupport>
 		<EnableUnsafeBinaryFormatterSerialization>false</EnableUnsafeBinaryFormatterSerialization>
 		<EnableUnsafeUTF7Encoding>false</EnableUnsafeUTF7Encoding>
 		<EventSourceSupport>false</EventSourceSupport>
 		<HttpActivityPropagationSupport>false</HttpActivityPropagationSupport>
+		<MetadataUpdaterSupport>false</MetadataUpdaterSupport>
 		<TrimMode>link</TrimMode>
 	</PropertyGroup>
 
 	<PropertyGroup Condition="'$(OS)' == 'Windows_NT' OR '$(ASFNetFramework)' != ''">
-		<TargetFrameworks>net5.0;net48</TargetFrameworks>
+		<TargetFrameworks>net6.0;net48</TargetFrameworks>
 	</PropertyGroup>
 
 	<PropertyGroup Condition="'$(OS)' != 'Windows_NT' AND '$(ASFNetFramework)' == ''">
-		<TargetFramework>net5.0</TargetFramework>
+		<TargetFramework>net6.0</TargetFramework>
 	</PropertyGroup>
 </Project>
diff --git a/Directory.Packages.props b/Directory.Packages.props
index 9706f1500..cabed6f1f 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -28,7 +28,7 @@
 	</ItemGroup>
 
 	<ItemGroup Condition="'$(TargetFramework)' == 'net48'">
-		<PackageVersion Include="JustArchiNET.Madness" Version="1.4.0" />
+		<PackageVersion Include="JustArchiNET.Madness" Version="2.0.0-alpha1" />
 		<PackageVersion Include="Microsoft.AspNetCore.Cors" Version="2.2.0" />
 		<PackageVersion Include="Microsoft.AspNetCore.Diagnostics" Version="2.2.0" />
 		<PackageVersion Include="Microsoft.AspNetCore.HttpOverrides" Version="2.2.0" />
diff --git a/Dockerfile b/Dockerfile
index 06969aa76..0d61bdcfa 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,14 +8,14 @@ RUN echo "node: $(node --version)" && \
     npm ci --no-progress && \
     npm run deploy --no-progress
 
-FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:5.0${IMAGESUFFIX} AS build-dotnet
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:6.0${IMAGESUFFIX} AS build-dotnet
 ARG CONFIGURATION=Release
 ARG STEAM_TOKEN_DUMPER_TOKEN
 ARG TARGETARCH
 ARG TARGETOS
-ENV DOTNET_CLI_TELEMETRY_OPTOUT 1
-ENV DOTNET_NOLOGO 1
-ENV NET_CORE_VERSION net5.0
+ENV DOTNET_CLI_TELEMETRY_OPTOUT true
+ENV DOTNET_NOLOGO true
+ENV NET_CORE_VERSION net6.0
 ENV STEAM_TOKEN_DUMPER_NAME ArchiSteamFarm.OfficialPlugins.SteamTokenDumper
 WORKDIR /app
 COPY --from=build-node /app/dist ASF-ui/dist
@@ -45,11 +45,11 @@ RUN dotnet --info && \
     if [ -d "ArchiSteamFarm/overlay/generic" ]; then cp -pR "ArchiSteamFarm/overlay/generic/"* "out/result"; fi && \
     if [ -d "out/${STEAM_TOKEN_DUMPER_NAME}/${NET_CORE_VERSION}" ]; then mkdir -p "out/result/plugins/${STEAM_TOKEN_DUMPER_NAME}"; cp -pR "out/${STEAM_TOKEN_DUMPER_NAME}/${NET_CORE_VERSION}/"* "out/result/plugins/${STEAM_TOKEN_DUMPER_NAME}"; fi
 
-FROM --platform=$TARGETPLATFORM mcr.microsoft.com/dotnet/aspnet:5.0${IMAGESUFFIX} AS runtime
+FROM --platform=$TARGETPLATFORM mcr.microsoft.com/dotnet/aspnet:6.0${IMAGESUFFIX} AS runtime
 ENV ASF_USER asf
 ENV ASPNETCORE_URLS=
-ENV DOTNET_CLI_TELEMETRY_OPTOUT 1
-ENV DOTNET_NOLOGO 1
+ENV DOTNET_CLI_TELEMETRY_OPTOUT true
+ENV DOTNET_NOLOGO true
 
 LABEL maintainer="JustArchi <JustArchi@JustArchi.net>" \
     org.opencontainers.image.authors="JustArchi <JustArchi@JustArchi.net>" \
diff --git a/Dockerfile.Service b/Dockerfile.Service
index 040fdb468..8c251158b 100644
--- a/Dockerfile.Service
+++ b/Dockerfile.Service
@@ -8,14 +8,14 @@ RUN echo "node: $(node --version)" && \
     npm ci --no-progress && \
     npm run deploy --no-progress
 
-FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:5.0${IMAGESUFFIX} AS build-dotnet
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:6.0${IMAGESUFFIX} AS build-dotnet
 ARG CONFIGURATION=Release
 ARG STEAM_TOKEN_DUMPER_TOKEN
 ARG TARGETARCH
 ARG TARGETOS
-ENV DOTNET_CLI_TELEMETRY_OPTOUT 1
-ENV DOTNET_NOLOGO 1
-ENV NET_CORE_VERSION net5.0
+ENV DOTNET_CLI_TELEMETRY_OPTOUT true
+ENV DOTNET_NOLOGO true
+ENV NET_CORE_VERSION net6.0
 ENV STEAM_TOKEN_DUMPER_NAME ArchiSteamFarm.OfficialPlugins.SteamTokenDumper
 WORKDIR /app
 COPY --from=build-node /app/dist ASF-ui/dist
@@ -46,11 +46,11 @@ RUN dotnet --info && \
     if [ -d "ArchiSteamFarm/overlay/${asf_variant}" ]; then cp -pR "ArchiSteamFarm/overlay/${asf_variant}/"* "out/result"; fi && \
     if [ -d "out/${STEAM_TOKEN_DUMPER_NAME}/${NET_CORE_VERSION}" ]; then mkdir -p "out/result/plugins/${STEAM_TOKEN_DUMPER_NAME}"; cp -pR "out/${STEAM_TOKEN_DUMPER_NAME}/${NET_CORE_VERSION}/"* "out/result/plugins/${STEAM_TOKEN_DUMPER_NAME}"; fi
 
-FROM --platform=$TARGETPLATFORM mcr.microsoft.com/dotnet/runtime-deps:5.0${IMAGESUFFIX} AS runtime
+FROM --platform=$TARGETPLATFORM mcr.microsoft.com/dotnet/runtime-deps:6.0${IMAGESUFFIX} AS runtime
 ENV ASF_USER asf
 ENV ASPNETCORE_URLS=
-ENV DOTNET_CLI_TELEMETRY_OPTOUT 1
-ENV DOTNET_NOLOGO 1
+ENV DOTNET_CLI_TELEMETRY_OPTOUT true
+ENV DOTNET_NOLOGO true
 
 LABEL maintainer="JustArchi <JustArchi@JustArchi.net>" \
     org.opencontainers.image.authors="JustArchi <JustArchi@JustArchi.net>" \
diff --git a/cc.sh b/cc.sh
index 3994e2dfb..930747a9a 100755
--- a/cc.sh
+++ b/cc.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env sh
 set -eu
 
-TARGET_FRAMEWORK="net5.0"
+TARGET_FRAMEWORK="net6.0"
 
 MAIN_PROJECT="ArchiSteamFarm"
 STEAM_TOKEN_DUMPER_NAME="${MAIN_PROJECT}.OfficialPlugins.SteamTokenDumper"