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@types/chai

TypeScript definitions for chai

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@types github.com/DefinitelyTyped/DefinitelyTyped github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/chaiMITtypes148M / week51.5k · 30.3k forks · 22.2k contributors

I'm on version…

Compares against 5.2.3 (latest stable)

Latest Stable5.2.3Oct 20, 2025

Latest Alpha3.4.27-alphaJul 8, 2016

Release cadenceEvery 4 weeks

Last releaseOct 20, 2025

Open advisories0

Changelog quality0% curated

No release notes found

Release history SecurityYou're on

4.x5.x

STABLE · RCPRE-RELEASE 2023AprJulOct2024AprJulOct2025AprJulOct

70 older or filtered releases not shown.

Upgrade guides

Breaking changes and a migration checklist for each major version

@types/chai 4 → 54.3.20 → 5.2.3Oct 20, 2025 Unknown @types/chai 3 → 43.5.2 → 4.3.20Sep 24, 2024 Unknown @types/chai 2 → 32.0.7 → 3.5.2Apr 28, 2017 Unknown

VersionChannelDateChangesSecurity

5.2.3 StableOct 20, 2025No notes published 5.2.2 StableMay 5, 2025No notes published 5.2.1 StableMar 24, 2025No notes published 5.2.0 StableMar 5, 2025No notes published 5.0.1 youStableOct 28, 2024No notes published 5.0.0 StableSep 24, 2024No notes published 4.3.20 StableSep 24, 2024No notes published 4.3.19 StableAug 27, 2024No notes published 4.3.18 StableAug 26, 2024No notes published 4.3.17 StableAug 1, 2024No notes published 4.3.16 StableMay 4, 2024No notes published 4.3.15 StableMay 2, 2024No notes published 4.3.14 StableMar 20, 2024No notes published 4.3.13 StableMar 19, 2024No notes published 4.3.12 StableFeb 23, 2024No notes published 4.3.11 StableNov 21, 2023No notes published 4.3.10 StableNov 7, 2023No notes published 4.3.9 StableOct 17, 2023No changes listed 4.3.8 StableOct 12, 2023No changes listed 4.3.7 StableOct 10, 2023No changes listed