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1. Commits on Oct 23, 2026

   • Update MessagePack package version to 2.5.303 (#20854)

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   • Optimizer: key debug inline specializations on type arguments and witnesses (#20844)

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   • Debugger: emit a call for a self tail call in non-optimized builds (#20782)

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   • Fix struct tuple property reflection diagnostics (#20815)

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   • Pin BCL packages to 10.0.13 for internal full-signed builds (#20853)

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   • [main] Source code updates from dotnet/dotnet (#20843)

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2. Commits on Oct 22, 2026

   • Suggest module opens for active-pattern cases (#20719)

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3. Commits on Oct 21, 2026

   • Enable dartlab runs on fork PRs (#20833)

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   • Add regression test for FCS PATH isolation (#20816)

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   • Update dependencies from build 337438 (#20831)

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   • Add an evidence-based performance improvement reviewer (#20619)

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   • Add an F# release documentation author agent (#20628)

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   • Update service-branch-merge.json with new merge config (#20830)

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   • Distinguish struct tuples in quotation output (#20814)

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   • Add narrated slides release agent (#20813)

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   • #20732 fix (clobbered locals in GenIntegerForLoop) (#20733)

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   • Bump FCSMinorVersion to 14 on main (#20818)

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   • Update dependencies from https://github.com/dotnet/dotnet build 20261013.24 (#20824)

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   • Remove obsolete DevDiv insertion variable group (#20820)

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4. Commits on Oct 20, 2026

   • [main] Source code updates from dotnet/dotnet (#20809)

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   • [main] Update dependencies from dotnet/roslyn (#20653)

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   • Inline conditional runtime-async callbacks in a separate lowering pass (#20647)

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   • Add regression test: #13084, long computation expressions (#20799)

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   • Fix editor typechecking of interpolated printf formats (#20775)

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   • Let the editor answer reference timestamps for the incremental builder (#20761)

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   • Note when a shared field needs option instead of voption (#20594)

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5. Commits on Oct 19, 2026

   • Use MSBuild MT for bootstrap, ILVerify and determinism (#20793)

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   • Correct FS3880 guidance for unsupported language versions (#20795)

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   • Keep implicit record references out of type rename edits (#20797)

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   • Fix the Array.tryPick documentation example (#20794)

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   • Remove always-on WitnessPassing language feature flag (#20710)

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   • Fix no-opt inline base class call (#20639)

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   • Type check referenced projects from their signatures in the TC (#20703)

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   • Update dependencies from https://github.com/dotnet/msbuild build 20261016.14 (#20807)

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   • Add regression test for for-to syntax highlighting (#20805)

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