WIP :: Feature :: Overloading :: [ORPA; Tiebreakers]#19277

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T-Gro wants to merge 90 commits intomainfrom

feature/tiebreakers

Commits on Jan 18, 2026

Commits on Jan 21, 2026

Commits on Jan 22, 2026

Commits on Feb 11, 2026

Commits on Feb 12, 2026

Merge branch 'main' into feature/tiebreakers
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Merge branch 'feature/tiebreakers' of https://github.com/dotnet/fsharp into feature/tiebreakers
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fix CI failures
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filterByOverloadResolutionPriority refactor
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Fix Desktop test failures: guard net472-incompatible tiebreaker tests with FactForNETCOREAPP
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Fixup #1: Address CODE-QUALITY, PERF, and TEST-CODE-QUALITY verifier feedback
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Fixup #1 (iteration 2): Address remaining CODE-QUALITY, PERF, TEST-CODE-QUALITY feedback
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Remove dead code and reduce API surface in OverloadResolutionRules
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Fixup #2: Remove dead FS3590 diagnostic, hide TiebreakRule from API surface, fix test quality and coverage
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Fixup #2 (iteration 2): Remove leftover docs, deduplicate tests, parameterize Optional/ParamArray tests
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Fixup #2 (iteration 3): Remove redundant comments, merge duplicate Warning 3576 test, remove placeholder test
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Fixup #3: Address PERF, TEST-CODE-QUALITY, and NO-LEFTOVERS verifier feedback
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Fixup #3 (iteration 2): Cache GetParamDatas and SRTP checks in moreConcreteRule, remove redundant doc comments
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Fix release notes: add PR #19277 links and FSharp.Compiler.Service entries
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Fixup #1: Address PERF, TEST-COVERAGE, HONEST-ASSESSMENT, NO-LEFTOVERS feedback
T-Gro
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Commits on Feb 13, 2026