Upgrade to .NET 10 and F# 10

[itsdanieldk]

This pull request updates the project to target .NET 10 and FSharp.Core 10 across all projects, enables F# language preview features, and introduces several improvements and fixes to the computation expression (CE) builder and internal fiber implementation. There are also updates to test dependencies, launch settings, and editor configuration.

.NET and F# Core version upgrades:

• Updated all project files to target net10.0 instead of net9.0 and to use FSharp.Core version 10.0.101 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18].

• Added <LangVersion>preview</LangVersion> to all project files to enable F# preview language features [1] [2] [3] [4] [5] [6] [7] [8].

Computation Expression (CE) and Fiber improvements:

• Added ReturnFromFinal and YieldFromFinal members to the FIOBuilder, clarifying the intent for final operations in computation expressions [1] [2].
• Changed Yield implementation to use FIO.Succeed directly for improved clarity and consistency.
• Simplified YieldFrom to return the effect directly.
• Fixed logic in InternalFiber.Complete to avoid double-completion and handle already completed tasks more robustly.

Test and tooling updates:

• Updated test dependencies to the latest versions (e.g., Microsoft.NET.Test.Sdk, FsCheck, xunit.runner.visualstudio) for improved reliability and compatibility.
• Updated the benchmark project’s launch settings with new command-line arguments for broader benchmark coverage.

Editor and CI configuration:

• Added a VSCode setting to disable inlay hints for F# files, improving editor experience.
• Updated GitHub Actions workflow to use .NET 10.

These changes collectively modernize the codebase, improve developer experience, and enhance the reliability and maintainability of the computation expression infrastructure.

[Copilot]

Pull request overview

This PR upgrades the project from .NET 9 to .NET 10 and F# 9 to F# 10, while introducing several improvements to the computation expression builder and fiber implementation.

• Updated all projects to target .NET 10 and FSharp.Core 10.0.101 with preview language features enabled
• Enhanced the FIOBuilder with new ReturnFromFinal and YieldFromFinal members for clearer final operation semantics
• Fixed potential double-completion issue in InternalFiber.Complete method
• Updated test dependencies and benchmark configurations

Reviewed changes

Copilot reviewed 13 out of 14 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tests/FSharp.FIO.Tests/FSharp.FIO.Tests.fsproj	Updated target framework, added preview language version, and upgraded test dependencies
src/FSharp.FIO/FSharp.FIO.fsproj	Updated target framework, added preview language version, and updated package paths
src/FSharp.FIO/DSL/Core.fs	Fixed double-completion logic in InternalFiber
src/FSharp.FIO/DSL/CE.fs	Added ReturnFromFinal/YieldFromFinal members and simplified Yield/YieldFrom implementations
src/FSharp.FIO.Lib/FSharp.FIO.Lib.fsproj	Updated target framework and FSharp.Core version
src/FSharp.FIO.App/FSharp.FIO.App.fsproj	Updated target framework and FSharp.Core version
examples/FSharp.FIO.Examples/FSharp.FIO.Examples.fsproj	Updated target framework and FSharp.Core version
examples/FSharp.FIO.Examples.App/FSharp.FIO.Examples.App.fsproj	Updated target framework and FSharp.Core version
benchmarks/FSharp.FIO.Benchmarks/Properties/launchSettings.json	Updated benchmark command-line arguments for broader coverage
benchmarks/FSharp.FIO.Benchmarks/FSharp.FIO.Benchmarks.fsproj	Updated target framework and FSharp.Core version
benchmarks/FSharp.FIO.Benchmarks.Plots/FSharp.FIO.Benchmarks.Plots.fsproj	Updated target framework and FSharp.Core version
.vscode/settings.json	Added setting to disable F# inlay hints
.github/workflows/test.yml	Updated CI workflow to use .NET 10

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.