C++: Refactor of UncheckedLeapYearAfterModification#21292

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bdrodes wants to merge 20 commits intogithub:mainfrom

microsoft:UncheckedLeaprYearAfterModification_Refactor_Upstream

Commits on Feb 6, 2026

C++: Add more tests for modified years with and without leap year checks (UncheckedLeapYearAfterYearModification). Switch to using 'postprocess' for unit tests.
bdrodes
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C++: Refactor leap year logic for UncheckedLeapYearAfterYearModification. Includes new logic for detecting leap year checks, new forms of leap year checks detected, and various heuristics to remove…
bdrodes
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C++. Accept test changes. One false positive introduced, and one false negative remains.
bdrodes
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C++: Correct false positive. Only TimeConversionFunction that do not auto correct for leap year should be considered.
bdrodes
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C++: Accept test changes.
bdrodes
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C++: Add missing DateTime models for PTIME_FIELDS and TIME_FIELDS
bdrodes
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C++: Accept test changes (removing false negative)
bdrodes
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C++: Add change note.
bdrodes
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Commits on Feb 9, 2026

Commits on Feb 12, 2026