dotnet/fsharp

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The F# compiler, F# core library, F# language service, and F# tooling integration for Visual Studio

Stars: 4.3k
Forks: 876
Open beginner issues: 0
Indexed issues: 1.1k
Avg merge: 4d 22h
Merged PRs (30d): 144

Dominant language: F#
License: MIT
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue

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1129 open issues indexed

Upload a new logo for explorer page in github Open

dotnet/fsharp#15571 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
VS counts hints into line length Open

AI-thinks-windows-only Area-LangService-Hints Bug Impact-Low Needs-More information

dotnet/fsharp#15576 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Tooltips for hints always show short types Open

Area-LangService-Hints Feature Improvement

dotnet/fsharp#15588 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
FSX file in Visual Studio attempts to load .NET 7 assemblies Open

AI-thinks-windows-only Area-TypeProviders Bug Impact-Low

dotnet/fsharp#15604 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Trimmed assemblies should not contain sig and opt data Open

Area-AOT Feature Request

dotnet/fsharp#15605 · 14 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
With FS1182 warnon, underscore code fixes insert two underscores Open

Area-LangService-CodeFixes Bug Impact-Low

dotnet/fsharp#15620 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Program stuck when using an async/task operation before an `EntryPoint` instruction Open

Area-Compiler-CodeGen Bug Impact-Low

dotnet/fsharp#15627 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Send References to F# interactive is pretty much useless now. Open

Area-VS-FSI Feature Request

dotnet/fsharp#15641 · 0 comments · 3 reactions · 0 assignees · Indexed Sep 15, 2026
[feature] FCS API that reports unnamed DU and exception fields Open

Analyzers Area-FCS Feature Request

dotnet/fsharp#15665 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
FsiEvaluationSession.Create does not unload FSI-ASSEMBLY when `collectible = true` Open

Area-FSI Bug Impact-Low

dotnet/fsharp#15669 · 11 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Code refactoring: single case union deconstruction Open

Area-LangService-CodeRefactorings Feature Request

dotnet/fsharp#15673 · 0 comments · 3 reactions · 0 assignees · Indexed Sep 15, 2026
A code fix to change colon to equals in record bindings Open

Area-LangService-CodeFixes

dotnet/fsharp#15674 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
When implementing interfaces, cancellable tasks can produce errors in the wrong places Open

Area-Compiler-StateMachines Bug Impact-Low

dotnet/fsharp#15675 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Copilot indentation Open

AI-thinks-windows-only Area-VS-Editor Bug Impact-Medium Tracking-External

dotnet/fsharp#15676 · 7 comments · 3 reactions · 1 assignee · Indexed Sep 15, 2026
F# interactive duplicates type definition if implicitly loaded 2+ times from other .fsx files Open

Area-FSI Feature Request Needs-design

dotnet/fsharp#15701 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Reference DevExpress with F# project Open

Needs-More information

dotnet/fsharp#15710 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
F# code formatting using Ctrl K+D Open

Area-VS-Editor Feature Request

dotnet/fsharp#15711 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add Syntax Highlighting to FSharp Interactive Open

Area-VS-FSI Feature Request

dotnet/fsharp#15712 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Cannot implement a generic interface with static abstract members with different generic arguments Open

Area-Compiler-Checking Area-Compiler-SRTP Bug Impact-Medium

dotnet/fsharp#15713 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Create a test project for bulk code fix benchmarking Open

Area-LangService-CodeFixes Area-Testing Theme-Performance

dotnet/fsharp#15716 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Renaming works weirdly for disposable types Open

Area-LangService-RenameSymbol Bug Impact-Medium

dotnet/fsharp#15721 · 12 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
match expressions missing inside task ce confusing error Open

Area-Diagnostics Feature Improvement

dotnet/fsharp#15748 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Forbid CE syntax which misleadingly looks like an early return Open

Analyzers Area-Diagnostics Feature Request

dotnet/fsharp#15759 · 5 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
Remove unsafe operations from the code fixes Open

Area-LangService-CodeFixes Feature Improvement

dotnet/fsharp#15764 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Simplify Name analyzer doesn't report some cases Open

Area-LangService-Diagnostics Feature Request

dotnet/fsharp#15771 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
fluent calls requiring method name to be next to the paren Open

Area-Diagnostics Feature Improvement

dotnet/fsharp#15780 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
F# Support in VS 2022 Code Metrics Open

Area-VS Feature Request

dotnet/fsharp#15781 · 0 comments · 15 reactions · 0 assignees · Indexed Sep 15, 2026
Fsharp has 7.0 references in the tooling going into 8.0.100 Open

Engineering

dotnet/fsharp#15782 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Make telemetry events strongly typed Open

Area-VS Feature Improvement Theme-Telemetry

dotnet/fsharp#15785 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Missing brackets in tupled DU field intellisense Open

Area-LangService-ToolTips Bug Impact-Medium

dotnet/fsharp#15787 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
A code fix to convert C# 'var' to F# 'let' Open

Area-LangService-CodeFixes Feature Request

dotnet/fsharp#15794 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Signature help triggers in a pattern Open

Area-LangService-ToolTips Bug Impact-Medium

dotnet/fsharp#15818 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Parenthesis completion should trigger more often Open

Area-LangService-AutoComplete Feature Request

dotnet/fsharp#15822 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Inline parameter name hints render on the the first chanied method mutiple times Open

Area-LangService-Hints Bug Impact-Medium

dotnet/fsharp#15825 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Two symbols are reported for override property Open

Bug Impact-Low

dotnet/fsharp#15831 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
FSharpType.Format for Units Of Measure gives unexpected results Open

Area-UoM Bug Impact-Low

dotnet/fsharp#15843 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
F# triple-slash /// comment tags shown **without line breaks** in tooltip Open

Area-VS-Editor Feature Improvement

dotnet/fsharp#15851 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Eliminate union case remapping common in monadic functions Open

Area-Compiler-Optimization Feature Request Theme-Performance

dotnet/fsharp#15872 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ignore keyword giving unexpected results Open

Analyzers

dotnet/fsharp#15880 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Use asynchronous Go To Definition in VS Open

Area-VS Feature Improvement

dotnet/fsharp#15892 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Some syntax tree tests fail in Debug Open

Area-Testing

dotnet/fsharp#15908 · 4 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
AddOpen code fix doesn't offer full qualification anymore Open

Area-LangService-CodeFixes Bug Impact-Medium

dotnet/fsharp#15911 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Extend RemoveSuperflousCaptureForUnionCaseWithNoDataProvider to cover literal patterns Open

Area-LangService-CodeFixes good first issue

dotnet/fsharp#15914 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Strange order dependency of members with cancellable tasks Open

Area-Compiler-StateMachines Bug Impact-Low

dotnet/fsharp#15940 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Remove unused references doesn't work for F# projects Open

AI-thinks-windows-only Area-VS Bug Impact-Medium

dotnet/fsharp#15961 · 0 comments · 5 reactions · 0 assignees · Indexed Sep 15, 2026
Add msbuild, roslyn and other dependecies in darc Open

Engineering

dotnet/fsharp#15969 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
NuGet Release notes reference internal Azure DevOps instead of source repository Open

Area-Documentation

dotnet/fsharp#15986 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Copy and Trim Indentation like in C# Open

Area-VS-Editor Feature Request

dotnet/fsharp#15988 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Static abstracts implemented/inherited in another interface don't work Open

Area-Compiler-Checking Area-Compiler-SRTP Bug Impact-Low

dotnet/fsharp#15992 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Inline parameter name hints work weirdly with slices Open

Area-LangService-Hints Bug Impact-Medium

dotnet/fsharp#15994 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026

dotnet/fsharp

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