Upgrade to .NET 11 RC2

.codex/environments/environment.toml

@@ -22,7 +22,7 @@ worktree_path="$PWD"
 echo "Setting up Exceptionless Aspire worktree: $worktree_path"
 
 if ! command -v dotnet >/dev/null 2>&1; then
-  echo "dotnet is not installed or not on PATH. Exceptionless requires .NET 10." >&2
+  echo "dotnet is not installed or not on PATH. Exceptionless requires .NET 11." >&2
   exit 1
 fi
 

.devcontainer/devcontainer.json

@@ -66,7 +66,7 @@
             "version": "latest"
         },
         "ghcr.io/devcontainers/features/dotnet:2": {
-            "version": "10.0"
+            "version": "11.0-preview"
         },
         "ghcr.io/devcontainers/features/node:1": {
             "nodeGypDependencies": true,

.github/workflows/build-arm64.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v6
         with:
-          dotnet-version: 10.0.402
+          dotnet-version: 11.0.100-rc.2.26504.105
       - name: Build Reason
         env:
           GITHUB_EVENT: ${{ toJson(github) }}

.github/workflows/build.yaml

@@ -114,7 +114,7 @@ jobs:
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v6
         with:
-          dotnet-version: 10.0.402
+          dotnet-version: 11.0.100-rc.2.26504.105
 
       - name: Version
         id: version
@@ -156,7 +156,7 @@ jobs:
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v6
         with:
-          dotnet-version: 10.0.402
+          dotnet-version: 11.0.100-rc.2.26504.105
 
       - uses: actions/cache@v6
         with:
@@ -215,7 +215,7 @@ jobs:
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v6
         with:
-          dotnet-version: 10.0.402
+          dotnet-version: 11.0.100-rc.2.26504.105
 
       - name: Merge coverage
         run: |
@@ -327,8 +327,7 @@ jobs:
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v6
         with:
-          dotnet-version: 10.0.402
-          dotnet-quality: ga
+          dotnet-version: 11.0.100-rc.2.26504.105
 
       - name: Install Aspire CLI
         run: |

.github/workflows/copilot-setup-steps.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v6
         with:
-          dotnet-version: 10.0.402
+          dotnet-version: 11.0.100-rc.2.26504.105
 
       - name: Install Aspire CLI
         run: |

.github/workflows/elasticsearch-docker-8.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v6
         with:
-          dotnet-version: 10.0.402
+          dotnet-version: 11.0.100-rc.2.26504.105
       - name: Build Reason
         env:
           GITHUB_EVENT: ${{ toJson(github) }}

.vscode/launch.json

@@ -12,7 +12,7 @@
             "type": "coreclr",
             "request": "launch",
             "preLaunchTask": "build",
-            "program": "${workspaceFolder}/src/Exceptionless.Web/bin/Debug/net10.0/Exceptionless.Web.dll",
+            "program": "${workspaceFolder}/src/Exceptionless.Web/bin/Debug/net11.0/Exceptionless.Web.dll",
             "args": [],
             "cwd": "${workspaceFolder}/src/Exceptionless.Web",
             "stopAtEntry": false,
@@ -29,7 +29,7 @@
             "type": "coreclr",
             "request": "launch",
             "preLaunchTask": "build",
-            "program": "${workspaceFolder}/src/Exceptionless.Job/bin/Debug/net10.0/Exceptionless.Job.dll",
+            "program": "${workspaceFolder}/src/Exceptionless.Job/bin/Debug/net11.0/Exceptionless.Job.dll",
             "args": [],
             "cwd": "${workspaceFolder}",
             "stopAtEntry": false,

AGENTS.md

@@ -1,6 +1,6 @@
 # Exceptionless
 
-Real-time error monitoring platform on .NET 10, Aspire, and Svelte 5. Keep changes readable, narrow, and backwards compatible.
+Real-time error monitoring platform on .NET 11, Aspire, and Svelte 5. Keep changes readable, narrow, and backwards compatible.
 
 This file is root-scope agent guidance. When working in a subtree, read any nested `AGENTS.md` there too. Prefer nearby repo skills for detailed backend, frontend, testing, repository, and dogfood workflows.
 

Dockerfile

@@ -1,4 +1,4 @@
-FROM mcr.microsoft.com/dotnet/sdk:10.0.402 AS build
+FROM mcr.microsoft.com/dotnet/sdk:11.0.100-rc.2 AS build
 ARG MinVerVersionOverride
 WORKDIR /app
 
@@ -40,7 +40,7 @@ RUN dotnet publish -c Release -o out --no-build
 
 # job
 
-FROM mcr.microsoft.com/dotnet/aspnet:10.0.13 AS job
+FROM mcr.microsoft.com/dotnet/aspnet:11.0.0-rc.2 AS job
 WORKDIR /app
 COPY --from=job-publish /app/src/Exceptionless.Job/out ./
 
@@ -59,7 +59,7 @@ RUN dotnet publish -c Release -o out --no-build /p:SkipSpaPublish=true
 
 # api
 
-FROM mcr.microsoft.com/dotnet/aspnet:10.0.13 AS api
+FROM mcr.microsoft.com/dotnet/aspnet:11.0.0-rc.2 AS api
 WORKDIR /app
 COPY --from=api-publish /app/src/Exceptionless.Web/out ./
 
@@ -77,7 +77,7 @@ RUN dotnet publish -c Release -o out --no-build
 
 # app
 
-FROM mcr.microsoft.com/dotnet/aspnet:10.0.13 AS app
+FROM mcr.microsoft.com/dotnet/aspnet:11.0.0-rc.2 AS app
 
 WORKDIR /app
 COPY --from=app-publish /app/src/Exceptionless.Web/out ./
@@ -145,7 +145,7 @@ USER elasticsearch
 
 RUN wget https://dot.net/v1/dotnet-install.sh -O dotnet-install.sh && \
     chmod +x dotnet-install.sh && \
-    ./dotnet-install.sh --version 10.0.13 --runtime aspnetcore && \
+    ./dotnet-install.sh --version 11.0.0-rc.2.26504.105 --runtime aspnetcore && \
     rm dotnet-install.sh
 
 EXPOSE 8080 9200

README.md

@@ -31,7 +31,7 @@ _In appreciation for anyone who submits a non-trivial pull request, we will give
 Start here:
 
 1. Read the [contributing document](https://github.com/exceptionless/Exceptionless/blob/main/CONTRIBUTING.md).
-2. Install [Docker](https://www.docker.com/get-docker), [.NET 10.0](https://dotnet.microsoft.com/), and [Node 24+](https://nodejs.org/).
+2. Install [Docker](https://www.docker.com/get-docker), [.NET 11.0](https://dotnet.microsoft.com/), and [Node 24+](https://nodejs.org/).
 3. Run the app with one of these entry points:
     - Visual Studio Code: open the repo root and start the `Aspire` launch configuration.
     - Visual Studio: open `Exceptionless.slnx`, set `Exceptionless.AppHost` as the startup project, and run it.

build/EmailTemplatePreviews.cs

@@ -1,5 +1,5 @@
 #:sdk Microsoft.NET.Sdk
-#:property TargetFramework=net10.0
+#:property TargetFramework=net11.0
 #:project ../src/Exceptionless.EmailTemplates/Exceptionless.EmailTemplates.csproj
 
 // Run from the repository root.

global.json

@@ -1,8 +1,8 @@
 {
     "sdk": {
-        "version": "10.0.100",
+        "version": "11.0.100-rc.2.26504.105",
         "rollForward": "latestMinor",
-        "allowPrerelease": false
+        "allowPrerelease": true
     },
     "test": {
         "runner": "Microsoft.Testing.Platform"

src/Directory.Build.props

@@ -1,6 +1,6 @@
 <Project>
   <PropertyGroup>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Product>Exceptionless</Product>
     <MinVerSkip Condition="'$(Configuration)' == 'Debug'">true</MinVerSkip>

src/Exceptionless.AppHost/Exceptionless.AppHost.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Aspire.AppHost.Sdk/13.6.1">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <UserSecretsId>a9c2ddcc-e51d-4cd1-9782-96e1d74eec87</UserSecretsId>

src/Exceptionless.Core/Exceptionless.Core.csproj

@@ -7,14 +7,14 @@
     <PackageReference Include="Exceptionless.RandomData" Version="2.0.1" />
     <PackageReference Include="Foundatio.Extensions.Hosting" Version="13.0.5" />
     <!-- Required at runtime by the repository package's index configuration hashing. -->
-    <PackageReference Include="System.IO.Hashing" Version="10.0.13" />
+    <PackageReference Include="System.IO.Hashing" Version="11.0.0-rc.2.26504.105" />
     <PackageReference Include="MiniValidation" Version="0.10.0" />
     <PackageReference Include="McSherry.SemanticVersioning" Version="1.5.0" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="10.0.13" />
-    <PackageReference Include="Microsoft.Extensions.Diagnostics.HealthChecks" Version="10.0.13" />
-    <PackageReference Include="Microsoft.Extensions.Logging" Version="10.0.13" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="11.0.0-rc.2.26504.105" />
+    <PackageReference Include="Microsoft.Extensions.Diagnostics.HealthChecks" Version="11.0.0-rc.2.26504.105" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="11.0.0-rc.2.26504.105" />
     <PackageReference Include="Stripe.net" Version="53.0.0" />
-    <PackageReference Include="System.DirectoryServices" Version="10.0.13" />
+    <PackageReference Include="System.DirectoryServices" Version="11.0.0-rc.2.26504.105" />
     <PackageReference Include="UAParser" Version="3.1.47" />
     <PackageReference Include="Foundatio.Repositories.Elasticsearch" Version="8.0.2-preview.elasticsearch-mapping-issue-investigation.0.3" Condition="'$(ReferenceFoundatioRepositoriesSource)' == '' OR '$(ReferenceFoundatioRepositoriesSource)' == 'false'" />
     <ProjectReference Include="..\..\..\..\Foundatio\Foundatio.Repositories\src\Foundatio.Repositories.Elasticsearch\Foundatio.Repositories.Elasticsearch.csproj" Condition="'$(ReferenceFoundatioRepositoriesSource)' == 'true'" />

src/Exceptionless.Insulation/Exceptionless.Insulation.csproj

@@ -7,20 +7,19 @@
     <PackageReference Include="Foundatio.AzureStorage" Version="13.0.5" />
     <PackageReference Include="Foundatio.RabbitMQ" Version="13.0.5" />
     <PackageReference Include="Foundatio.Redis" Version="13.0.5" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="10.0.13" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="10.0.13" />
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="10.0.13" />
-    <PackageReference Include="Microsoft.Extensions.DependencyModel" Version="10.0.13" />
-    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.13" />
-    <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="10.0.13" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="11.0.0-rc.2.26504.105" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="11.0.0-rc.2.26504.105" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="11.0.0-rc.2.26504.105" />
+    <PackageReference Include="Microsoft.Extensions.DependencyModel" Version="11.0.0-rc.2.26504.105" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="11.0.0-rc.2.26504.105" />
     <PackageReference Include="MailKit" Version="4.18.1" />
     <PackageReference Include="Serilog.Extensions.Logging" Version="10.0.0" />
     <PackageReference Include="Serilog.Formatting.Compact" Version="3.0.0" />
     <PackageReference Include="Serilog.Settings.Configuration" Version="10.0.1" />
     <PackageReference Include="Serilog.Sinks.Console" Version="6.1.1" />
     <PackageReference Include="Serilog.Sinks.ExceptionLess" Version="5.0.0" />
     <!-- MimeKit (via MailKit) allows 10.0.0, which has GHSA-2fmv-rv2c-59x7 and GHSA-846f-f764-76mx. -->
-    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="10.0.13" />
+    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="11.0.0-rc.2.26504.105" />
     <PackageReference Include="YamlDotNet" Version="18.1.0" />
   </ItemGroup>
   <ItemGroup>

src/Exceptionless.Web/Exceptionless.Web.csproj

@@ -15,10 +15,8 @@
     <PackageReference Include="Exceptionless.AspNetCore" Version="6.2.0" />
     <PackageReference Include="Joonasw.AspNetCore.SecurityHeaders" Version="6.0.0" />
     <PackageReference Include="Foundatio.Mediator" Version="1.3.3" />
-    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.13" />
-    <!-- Microsoft.AspNetCore.OpenApi 10.x is built against the Microsoft.OpenApi 2.x API surface.
-         Keep this direct reference on the latest 2.x release until ASP.NET Core supports 3.x. -->
-    <PackageReference Include="Microsoft.OpenApi" Version="2.12.2" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="11.0.0-rc.2.26504.105" />
+    <PackageReference Include="Microsoft.OpenApi" Version="3.10.2" />
     <PackageReference Include="ModelContextProtocol.AspNetCore" Version="2.2.0" />
     <PackageReference Include="Riok.Mapperly" Version="4.3.1" />
     <PackageReference Include="MiniValidation" Version="0.10.0" />

src/Exceptionless.Web/Utility/OpenApi/EndpointDocumentationOperationTransformer.cs

@@ -158,7 +158,7 @@ public Task TransformAsync(OpenApiOperation operation, OpenApiOperationTransform
             requestBody.Required = true;
             if (requestBody.Content is not null)
             {
-                foreach (var mediaType in requestBody.Content.Values)
+                foreach (var mediaType in requestBody.Content.Values.OfType<OpenApiMediaType>())
                     mediaType.Schema = RemoveNullAlternative(mediaType.Schema);
             }
         }

src/Exceptionless.Web/Utility/OpenApi/ExceptionlessOpenApiServiceCollectionExtensions.cs

@@ -1,4 +1,5 @@
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.OpenApi;
 
 namespace Exceptionless.Web.Utility.OpenApi;
 
@@ -10,6 +11,8 @@ public static IServiceCollection AddExceptionlessOpenApi(this IServiceCollection
     {
         services.AddOpenApi(options =>
         {
+            // ASP.NET Core 11 defaults to OpenAPI 3.2; keep publishing 3.1 for existing client generators.
+            options.OpenApiVersion = OpenApiSpecVersion.OpenApi3_1;
             options.CreateSchemaReferenceId = SchemaReferenceIdHelper.CreateSchemaReferenceId;
             options.AddDocumentTransformer<AggregateDocumentTransformer>();
             options.AddDocumentTransformer<XmlDocumentationDocumentTransformer>();

src/Exceptionless.Web/Utility/OpenApi/RequestBodyContentOperationTransformer.cs

@@ -32,9 +32,9 @@ public Task TransformAsync(OpenApiOperation operation, OpenApiOperationTransform
             operation.RequestBody = new OpenApiRequestBody
             {
                 Required = true,
-                Content = new Dictionary<string, OpenApiMediaType>
+                Content = new Dictionary<string, IOpenApiMediaType>
                 {
-                    ["multipart/form-data"] = new()
+                    ["multipart/form-data"] = new OpenApiMediaType
                     {
                         Schema = CreateMultipartSchema(multipartFileUploadAttribute)
                     }
@@ -61,7 +61,7 @@ public Task TransformAsync(OpenApiOperation operation, OpenApiOperationTransform
         operation.RequestBody = new OpenApiRequestBody
         {
             Required = true,
-            Content = new Dictionary<string, OpenApiMediaType>()
+            Content = new Dictionary<string, IOpenApiMediaType>()
         };
 
         foreach (string contentType in contentTypes)