[Automated] PRs inserted in VS build main-12202.76 #20434

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[Automated] PRs inserted in VS build main-12202.76#20434

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dotnet-bot

opened on Sep 3, 2026

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• Remove always-on StaticMembersInInterfaces language feature flag
• Remove always-on LanguageFeature.NameOf flag (#20153)
• Remove always-on NullableOptionalInterop language feature flag
• IL: hold custom attributes in fields rather than a union case
• [MicroPerf] Perf: eliminate per-call closure in StackGuard.Guard via InlineIfLambda
• Inline TryD to remove closure allocations in the constraint solver
• Remove always-on language feature flag ImprovedImpliedArgumentNames (#20195)
• Remove always-on language feature flag EscapeDotnetFormattableStrings (#20181)
• Remove always-on language feature flag PreferStringGetPinnableReference (#20186)
• Remove always-on language feature flag LowercaseDUWhenRequireQualifiedAccess (#20170)
• Remove always-on language feature flag DelegateTypeNameResolutionFix
• Fuse the optimizer inlining copy + type-instantiation passes
• Avoid redundant FreeVars record allocation for local vals
• Use a mutable Dictionary for Detuple usage analysis
• Avoid Choice allocation in fslib entity/val-ref equality
• Perf microwins - via self-build hot paths
• Import: share assembly CCUs between projects
• Rotate [<return: X>] attributes during binding normalization
• Unpickling: share one EntityRef per non-local reference row
• IL: reuse the cached ILTypeRef in ILTypeInfo.FromType
• Replace the stringified pattern-match memo key with a typed one
• Remove always-on IndexerNotationWithoutDot language feature flag
• Reject bitwise operators on char-backed enums (#11785)
• Cleanup: use FindByNameAndArity guard in CheckILBaseCall to avoid exception-based control flow for inherited IL methods
• Calculate Entity.PublicPath instead of storing
• Remove always-on InterfacesWithMultipleGenericInstantiation language feature
• Remove always-on InitPropertiesSupport language feature
• Printf fixes around handling of -0.0 (negative zero)
• Remove always-on BetterExceptionPrinting language feature flag
• Remove always-on language feature flag: NestedCopyAndUpdate
• Flatten always-on TryWithInSeqExpression language feature (#20189)
• Remove always-on language feature flag: RelaxWhitespace2
• Flatten always-on FixedIndexSlice3d4d language feature (#20146)
• Remove always-on WhileBang language feature flag
• Flatten always-on AccessorFunctionShorthand language feature (#20175)
• Flatten always-on WarningWhenInliningMethodImplNoInlineMarkedFunction feature
• Fix mmap ReadOnlyMemory copy and add release notes
• IL: cache the ILTypeRef of a type def
• Flatten always-on DiagnosticForObjInference language feature (#20178)
• Test debug-inline capture of a local function from a nested closure
• Add launch script so contributors can F5 the VS extension without a matching-Roslyn VS
• Spill the evaluation stack around 'localloc'
• Name resolution: group C#-style extension members per 'open' and extended type
• IL: share the pickled references
• chore(Test): Inhibit RunSynchronouslyImmediate; reduce suite concurrency re #20306
• Perf: Throttle parallel typechecks in Find All References
• Avoid cancellableTask CE in DocumentCache to preserve static-state-machine optimization
• Extension members solve SRTP constraints (continuation)
• Fix InvalidProgramException from Seq.collect over a struct seq materialised with List.ofSeq/Seq.toList/Seq.toArray
• Add ExtendedLayoutAttribute support for F# compiler
• WIP: Deduplicate FSharp.Core XML docs via
• Add withFSharpCoreShippedNet so ComponentTests can exercise the shipped net FSharp.Core
• Make Entity's adhoc members list lazy
• Fix super-linear compilation of guarded shared-or active-pattern matches
• Retarget the NativeAOT test to net10 to dogfood the net10 FSharp.Core
• Add FSI options tests
• Export DOTNET_ROOT for repo-local runtime resolution in CLI build scripts
• Parser: recover on missing 'when' conditions
• IL: cache C# extension methods per CCU
• Make AI expert-review post file+line anchored inline comments, not a prose wall
• IL: share ILCallingConv instances
• Add build step for Oxpecker_Solid
• Add regression test for #14596: type inference in task CE
• Restore source-build overridable prop names for runtime packages
• Add Chiron to the compiler regression-test matrix
• Add Unchecked.withNull for unconstrained C# nullable-generic interop
• feat(Async): StartTaskImmediate
• Unpin MSBuild deps and flow to VS 18.11 (18.11.0-1.26417.9)
• Add generic print and println functions to FSharp.Core

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1. dotnet-bot

   added

   vs-insertion

   on Sep 3, 2026
2. github-project-automation

   added this to F# Compiler and Toolingon Sep 3, 2026
3. github-project-automation

   moved this to New in F# Compiler and Toolingon Sep 3, 2026
4. github-actions

   added this to the Backlog milestone on Sep 3, 2026
5. github-actions

   added

   Needs-Triage

   on Sep 3, 2026
6. T-Gro

   closed this as completedon Sep 15, 2026

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