yup

1.7.1 · 21 Sep 2025MIT16.7M / weekRepository npm Atom feed

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Before you upgrade

Tick each one off as you go

Use Number.isInteger. This works correctly for large numbers.
breaking0.28.0
reach() no longer resolves the returned schema meaning it's conditions have not been processed yet; prefer validateAt/castAt where it makes sense
breaking0.28.0
Required no longer shows up twice in describe() output for array and strings, which also no longer override required
breaking0.28.0

1 internal line (docs, tests, tooling) left out.

npm install yup@0.28.0

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