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Pull requests: dotnet/fsharp
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[release/10.0.4xx] Update dependencies from dotnet/arcade
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#20391
opened Aug 28, 2026 by
dotnet-maestro
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[release/dev18.0] Update dependencies from dotnet/arcade
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#20390
opened Aug 28, 2026 by
dotnet-maestro
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Share the empty-array singleton for zero-length Array results
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[MicroPerf] Inline the free-variable typar foldBacks
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#20385
opened Aug 27, 2026 by
T-Gro
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2/2
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[MicroPerf] Avoid per-call closure allocation in type-hierarchy traversal
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#20384
opened Aug 27, 2026 by
T-Gro
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1/2
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Check let bindings through active patterns like a match (#16856)
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PR reviewed by AI review council
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#20383
opened Aug 27, 2026 by
edgarfgp
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[main] Source code updates from dotnet/dotnet
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#20381
opened Aug 27, 2026 by
dotnet-maestro
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[release/dev18.0] Source code updates from dotnet/dotnet
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#20380
opened Aug 27, 2026 by
dotnet-maestro
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Remove always-on NullableOptionalInterop language feature flag
⚠️ Affects-Compiler-Output
Tooling check: PR touches IL emission or codegen
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#20378
opened Aug 26, 2026 by
T-Gro
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Flatten always-on LanguageFeature.NameOf flag
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#20377
opened Aug 26, 2026 by
T-Gro
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Remove always-on language feature flag EscapeDotnetFormattableStrings
⚠️ Affects-Compiler-Output
Tooling check: PR touches IL emission or codegen
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#20375
opened Aug 26, 2026 by
T-Gro
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[MicroPerf] Remove per-node closure allocations in post-inference type checking
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#20374
opened Aug 26, 2026 by
T-Gro
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[MicroPerf] Eliminate closure allocations in List.mapq and List.lengthsEqAndForall2
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#20372
opened Aug 26, 2026 by
T-Gro
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Remove always-on StaticMembersInInterfaces language feature flag
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#20371
opened Aug 26, 2026 by
T-Gro
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Remove always-on language feature flag PreferStringGetPinnableReference
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#20370
opened Aug 26, 2026 by
T-Gro
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Remove always-on language feature flag ImprovedImpliedArgumentNames
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#20369
opened Aug 26, 2026 by
T-Gro
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[MicroPerf] Perf: eliminate per-call closure in StackGuard.Guard via InlineIfLambda
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#20368
opened Aug 26, 2026 by
T-Gro
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[MicroPerf] Inline TryD to remove constraint-solver closure allocations
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#20367
opened Aug 26, 2026 by
T-Gro
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Remove always-on language feature flag DelegateTypeNameResolutionFix
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#20366
opened Aug 26, 2026 by
T-Gro
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Remove always-on LowercaseDUWhenRequireQualifiedAccess feature flag
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#20365
opened Aug 26, 2026 by
T-Gro
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[MicroPerf] Fuse the optimizer inlining copy + type-instantiation passes
⚠️ Affects-Compiler-Output
Tooling check: PR touches IL emission or codegen
Theme-Performance
#20363
opened Aug 26, 2026 by
T-Gro
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Remove all trailing whitespaces
⚠️ Affects-Build-Infra
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#20355
opened Aug 25, 2026 by
xperiandri
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[MicroPerf] Avoid redundant FreeVars record allocation for local vals
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#20354
opened Aug 25, 2026 by
T-Gro
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[MicroPerf] Cache IL method parameter attributes during overload resolution
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#20353
opened Aug 25, 2026 by
T-Gro
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