breaking: drop .NET 8/9 and pin Verify to 32.x

.github/dependabot.yml

@@ -16,6 +16,9 @@ updates:
     groups:
       nuget-deps:
         patterns: [ "*" ]
+    ignore:
+      - dependency-name: "Verify.NUnit"
+        update-types: [ version-update:semver-major ]
     open-pull-requests-limit: 10
     registries: [ nuget ]
     target-branch: main

.github/workflows/Build.yml

@@ -62,7 +62,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        test-framework: [ net8.0, net9.0, net10.0 ]
+        test-framework: [ net10.0 ]
     steps:
 
       - name: Checkout
@@ -75,16 +75,6 @@ jobs:
         with:
           dotnet-version: 10.0.x
 
-      - name: Setup .NET 8.0.x
-        uses: actions/setup-dotnet@v5
-        with:
-          dotnet-version: 8.0.x
-
-      - name: Setup .NET 9.0.x
-        uses: actions/setup-dotnet@v5
-        with:
-          dotnet-version: 9.0.x
-
       - name: TestProjects
         id: TestProjects
         run: dotnet run --project _atom/_atom.csproj -- TestProjects --skip --headless

.github/workflows/Validate.yml

@@ -54,7 +54,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        test-framework: [ net8.0, net9.0, net10.0 ]
+        test-framework: [ net10.0 ]
     steps:
 
       - name: Checkout
@@ -67,16 +67,6 @@ jobs:
         with:
           dotnet-version: 10.0.x
 
-      - name: Setup .NET 8.0.x
-        uses: actions/setup-dotnet@v5
-        with:
-          dotnet-version: 8.0.x
-
-      - name: Setup .NET 9.0.x
-        uses: actions/setup-dotnet@v5
-        with:
-          dotnet-version: 9.0.x
-
       - name: TestProjects
         id: TestProjects
         run: dotnet run --project _atom/_atom.csproj -- TestProjects --skip --headless

.github/copilot-instructions.md → AGENTS.md

@@ -1,4 +1,4 @@
-# Copilot Instructions
+# Agent Instructions
 
 Guidance for AI agents working in **Invex.Process** — a small, focused C# library for running
 external processes with first-class logging, real-time output streaming, full output capture, and
@@ -8,8 +8,8 @@ fail-fast error handling. Keep changes focused and defer to the linked docs for
 
 | Project | Role | Target frameworks |
 |---------|------|-------------------|
-| `Invex.Process` | The library: `IProcessRunner` / `ProcessRunner`, `ProcessRunOptions`, `ProcessRunResult`, `ProcessHostExtensions` | `net8.0;net9.0;net10.0` |
-| `Invex.Process.Tests` | NUnit test suite, including a public API surface snapshot test | `net8.0;net9.0;net10.0` |
+| `Invex.Process` | The library: `IProcessRunner` / `ProcessRunner`, `ProcessRunOptions`, `ProcessRunResult`, `ProcessHostExtensions` | `net10.0` |
+| `Invex.Process.Tests` | NUnit test suite, including a public API surface snapshot test | `net10.0` |
 | `_atom` | Atom build definition (`IBuild.cs`) that generates the GitHub Actions workflows | `net10.0` |
 
 Sources live under `src/`, tests under `tests/`, the Atom build definition under `_atom/`, and the
@@ -18,7 +18,7 @@ and `toc.yml`.
 
 ## Build & language specifics
 
-- **.NET 10 SDK** is required. Library and test projects multi-target `net8.0;net9.0;net10.0`.
+- **.NET 10 SDK** is required. Library and test projects target `net10.0`.
 - C# `LangVersion` 14, `ImplicitUsings` and `Nullable` enabled, `TreatWarningsAsErrors` on.
 - Global usings live in each project's `_usings.cs` — add shared usings there, not per-file.
 - `GenerateDocumentationFile` is on and `CS1591` is **enforced** in `src/` — every public type

README.md

@@ -32,7 +32,7 @@ full output capture, and fail-fast error handling. It wraps `System.Diagnostics.
 dotnet add package Invex.Process
 ```
 
-The package targets `net8.0`, `net9.0`, and `net10.0`. It depends on
+The package targets `net10.0`. It depends on
 `Microsoft.Extensions.DependencyInjection.Abstractions` and `Microsoft.Extensions.Hosting.Abstractions`, and logs
 through `ILogger`, so configure logging on your host (it is by default with `Host.CreateApplicationBuilder`).
 

_atom/IBuild.cs

@@ -39,8 +39,6 @@ internal interface IBuild : IWorkflowBuildDefinition,
 
     static readonly string[] TestFrameworkNames =
     [
-        WorkflowLabels.Dotnet.Framework.Net_8_0,
-        WorkflowLabels.Dotnet.Framework.Net_9_0,
         WorkflowLabels.Dotnet.Framework.Net_10_0,
     ];
 
@@ -215,8 +213,6 @@ await UnlistPrereleasesBelowVersionForPackages(NugetFeed,
                     Options =
                     [
                         BuildOptions.Target.SuppressArtifactPublishing,
-                        BuildOptions.Steps.SetupDotnet.Dotnet80X(),
-                        BuildOptions.Steps.SetupDotnet.Dotnet90X(),
                     ],
                 },
                 new(nameof(CheckPrForBreakingChanges))
@@ -272,7 +268,6 @@ await UnlistPrereleasesBelowVersionForPackages(NugetFeed,
                             Values = TestFrameworkNames,
                         },
                     ],
-                    Options = [BuildOptions.Steps.SetupDotnet.Dotnet80X(), BuildOptions.Steps.SetupDotnet.Dotnet90X()],
                 },
                 new(nameof(PushToNuget))
                 {
@@ -384,6 +379,16 @@ await UnlistPrereleasesBelowVersionForPackages(NugetFeed,
                     },
                     TargetBranch = "main",
                     OpenPullRequestsLimit = 10,
+                    Ignore =
+                    [
+                        // Verify 33 adds a maintenance-fee SponsorCheck that fails test builds (SC021).
+                        new()
+                        {
+                            DependencyName = "Verify.NUnit",
+                            UpdateTypes = [SemverUpdateType.VersionUpdateSemverMajor],
+                            Versions = null,
+                        },
+                    ],
                 },
             ],
         }),

docs/getting-started.md

@@ -9,7 +9,7 @@ if you are adding `Invex.Process` to a host, tool or build for the first time.
 dotnet add package Invex.Process
 ```
 
-The package targets `net8.0`, `net9.0`, and `net10.0`.
+The package targets `net10.0`.
 
 ## Register the service
 

src/Invex.Process/Invex.Process.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFramework>net10.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>

tests/Invex.Process.Tests/Invex.Process.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFramework>net10.0</TargetFramework>
     <IsPackable>false</IsPackable>
     <!-- Tests are not a shipped API surface; XML docs are not required. -->
     <NoWarn>$(NoWarn);CS1591</NoWarn>
@@ -16,7 +16,7 @@
     <PackageReference Include="NUnit" Version="4.6.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="6.3.0" />
     <PackageReference Include="Shouldly" Version="4.3.0" />
-    <PackageReference Include="Verify.NUnit" Version="32.0.0" />
+    <PackageReference Include="Verify.NUnit" Version="32.0.1" />
   </ItemGroup>
 
   <ItemGroup>