Issues

• SDK 10.0.402 emits invalid IL for async raise with record copy from static member

  BugNeeds-TriageRegression
  Bug

  dotnet/fsharp#20871 · Filter by author nbevans opened on Oct 27, 2026 · Backlog

• Runtime async: rethrow after a suspending handler or finally loses the stack trace

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20869 · Filter by author majocha opened on Oct 27, 2026 · Backlog

• Exception raised during pretty printing

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20860 · Filter by author ingted opened on Oct 24, 2026 · Backlog
  2

• FS0073 internal error: Undefined or unsolved type variable: 'C, intermittent in Release

  Bug
  Bug

  dotnet/fsharp#20812 · Filter by author xperiandri opened on Oct 19, 2026 · Backlog
  1

• Partial application over a byref-like argument compiles and fails at run time with TypeLoadException

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20803 · Filter by author xperiandri opened on Oct 17, 2026 · Backlog

• VS: hang when deleting a file

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20760 · Filter by author majocha opened on Oct 11, 2026 · Backlog

• Release-only wrong result in integer for loop: local bound inside loop range expression clobbers a local slot

  BugNeeds-Triage
  Bug

  dotnet/fsharp#20732 · Filter by author rspeele opened on Oct 8, 2026 · Backlog

• Wrong reported symbols for record spreads

  Area-Compiler-ServiceBug
  Bug

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

• Missing null guards in FSharpAsync; exceptions in continuations

  Area-AsyncArea-LibraryBug
  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

• Flaky test: FCS tooltip #r reference-assembly resolution is non-deterministic (Fsx.Bug5073, ResolveFromGAC)

  BugNeeds-Triage
  dotnet/fsharp#20276 · Filter by author T-Gro opened on Aug 17, 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

  

• Intermittent FS1116/FS1118 "Failed to inline the value 'Source'" for cross-assembly overloaded inline members under parallel compilation

  Area-CompilerBug
  dotnet/fsharp#20085 · Filter by author T-Gro opened on Jul 24, 2026 · Backlog
  1

• 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