Issues

• Wrong reported symbols for record spreads

  Area-Compiler-ServiceBug
  Bug

  dotnet/fsharp#20676 · Filter by author auduchinok opened on Oct 1, 2026 · Backlog
  3

• Incorrect warning on Double.NaN pattern in match expression

  Area-Compiler-PatternMatchingBug
  Bug

  dotnet/fsharp#20667 · Filter by author djgorman-vz opened on Sep 30, 2026 · Backlog
  1

• .NET SDK >= 10.0.200

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20666 · Filter by author kant2002 opened on Sep 30, 2026 · Backlog
  3

• Transparent Compiler returns no completions after a dangling dot

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20660 · Filter by author MangelMaxime opened on Sep 29, 2026 · Backlog

• Documentation comments issues

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20646 · Filter by author Lanayx opened on Sep 27, 2026 · Backlog

• Internal error when calling base class method in inlined method without optimizations

  Bug
  Bug

  dotnet/fsharp#20614 · Filter by author majocha opened on Sep 22, 2026 · Backlog

• Missing null guards in FSharpAsync; exceptions in continuations

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20613 · Filter by author bartelink opened on Sep 22, 2026 · Backlog

• Multiline interpolation failing indentation check?

  Area-Compiler-SyntaxBug
  Bug

  dotnet/fsharp#20595 · Filter by author Thorium opened on Sep 20, 2026 · Backlog

• Stack underflow when if used in raise

  Area-Compiler-CodeGenBugNeeds-Triage
  Bug

  dotnet/fsharp#20564 · Filter by author kerams opened on Sep 16, 2026 · Backlog

• Debug/Release regression

  Area-Compiler-CodeGenBugRegression
  Bug

  dotnet/fsharp#20493 · Filter by author Lanayx opened on Sep 9, 2026 · Backlog
  2

• Type mismatch error when building a solution with type provider (since .NET 10)

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20479 · Filter by author mlaily opened on Sep 7, 2026 · Backlog

• Reading a field of a struct that a quotation (or computation expression) captures fails with FS3155

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20376 · Filter by author marklam opened on Aug 26, 2026 · Backlog

• build.sh no longer works on macOS

  Bug
  Bug

  dotnet/fsharp#20241 · Filter by author auduchinok opened on Aug 10, 2026 · Backlog
  2

  

• The new dotnet SDK ParallelCompilation=true causing issues in TypeProviders

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20060 · Filter by author Thorium opened on Jul 13, 2026 · Backlog

• Filtered try/with in seq { } emits int 0 where seq<'T> is expected for the unmatched case

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20040 · Filter by author klofberg opened on Jul 7, 2026 · Backlog

• F# Interactive uses different FSharp.Core version to latest SDK

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20038 · Filter by author mrboring opened on Jul 7, 2026 · Backlog

• dotnet build produce invalid path when Cyrillic characters

  BugNeeds-Repro
  Bug

  dotnet/fsharp#20004 · Filter by author kant2002 opened on Jun 28, 2026 · Backlog
  1

• F# 6, 7 compatibility

  BugNeeds-Triage
  Bug

  dotnet/fsharp#19555 · Filter by author auduchinok opened on Apr 7, 2026 · Backlog
  4

• duplicate entry '.cctor' in method table

  Area-Compiler-CodeGenBug
  Bug

  dotnet/fsharp#19445 · Filter by author ingted opened on Mar 17, 2026 · Backlog

• Type subsumption cache causes sustained ~150% CPU in IDE with generative type providers (hash code not memoized)

  BugTheme-Performance
  Bug

  dotnet/fsharp#19368 · Filter by author OnurGumus opened on Feb 28, 2026 · Backlog
  16

• Wrong tooltip with a type provider constructor for an unresolved reference

  Area-LangService-ToolTipsArea-TypeProvidersBug
  Bug

  dotnet/fsharp#19330 · Filter by author DedSec256 opened on Feb 19, 2026 · Backlog

• BindNReturn documentation error

  Area-DocumentationBug
  Bug

  dotnet/fsharp#19316 · Filter by author g874200 opened on Feb 17, 2026 · Backlog

• Some checks don't be performed on F#-style extension methods

  Area-Compiler-CheckingBug
  Bug

  dotnet/fsharp#19227 · Filter by author ijklam opened on Jan 20, 2026 · Backlog

• No compiler error when attempting to use voidptr as type argument

  Area-Compiler-CodeGenBug
  Bug

  dotnet/fsharp#19224 · Filter by author Choosechee opened on Jan 20, 2026 · Backlog
  1

• fsi incorrect handling of some script arguments

  Area-FSIBug
  Bug

  dotnet/fsharp#19214 · Filter by author g874200 opened on Jan 13, 2026 · Backlog