# React Testing Library: what changed from 15 to 16

- Product: React Testing Library (https://whatsnew.fyi/product/react-testing-library)
- Vendor: Testing Library
- Range: changelog entries numbered after v15.0.7 up to and including v16.3.3, stable releases only
- Entries below: 8 releases (newest first)
- Resolved: 15 is v15.0.7 and 16 is v16.3.3, the newest stable release of each major we track
- Carrying security changes: 0 · CVEs mentioned: 0 · Mentioning breaking changes: 1 · Removing or deprecating something: 0
- Page: https://whatsnew.fyi/product/react-testing-library/compare/15...16

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

## What changed (8 changes, grouped by kind)

### Added

#### v16.2.0 (2025-01-15)

- Add support for React error handlers

#### v16.1.0 (2024-12-05)

- Add support for React 19

### Changed

#### v16.0.0 (2024-06-03)

- Move @testing-library/dom to peer dependencies
- Move @types/react-dom to peer dependencies

### Fixed

#### v16.3.3 (2026-08-27)

- Avoid act() re-entrant when dispatching events

#### v16.3.2 (2026-01-19)

- Update 'onCaughtError' type inference in 'RenderOptions' to work with React v19

#### v16.3.1 (2025-12-15)

- Switch to trusted publishing

#### v16.0.1 (2024-08-29)

- Add support for exactOptionalPropertyTypes in TypeScript

_One release carries no categorized changes yet: v16.3.0._

## Release notes

### v16.3.3

- Date: 2026-08-27
- Version: v16.3.3
- Original notes: https://github.com/testing-library/react-testing-library/releases/tag/v16.3.3
- Permalink: https://whatsnew.fyi/product/react-testing-library/releases/v16.3.3

- **fixed** — Avoid act() re-entrant when dispatching events

##### [16.3.3](https://github.com/testing-library/react-testing-library/compare/v16.3.2...v16.3.3) (2026-08-27)


###### Bug Fixes

* Avoid act() re-entrant when dispatching events ([#1468](https://github.com/testing-library/react-testing-library/issues/1468)) ([20ce75f](https://github.com/testing-library/react-testing-library/commit/20ce75f2907ca0e5c5a8ae595c0e9a4e368c7800))

### v16.3.2

- Date: 2026-01-19
- Version: v16.3.2
- Original notes: https://github.com/testing-library/react-testing-library/releases/tag/v16.3.2
- Permalink: https://whatsnew.fyi/product/react-testing-library/releases/v16.3.2

- **fixed** — Update 'onCaughtError' type inference in 'RenderOptions' to work with React v19

##### [16.3.2](https://github.com/testing-library/react-testing-library/compare/v16.3.1...v16.3.2) (2026-01-19)


###### Bug Fixes

* Update 'onCaughtError' type inference in 'RenderOptions' to work with React v19 ([#1438](https://github.com/testing-library/react-testing-library/issues/1438)) ([f32bd1b](https://github.com/testing-library/react-testing-library/commit/f32bd1b033d5e3989ae1cb490d515ce389c54e53))

### v16.3.1

- Date: 2025-12-15
- Version: v16.3.1
- Original notes: https://github.com/testing-library/react-testing-library/releases/tag/v16.3.1
- Permalink: https://whatsnew.fyi/product/react-testing-library/releases/v16.3.1

- **fixed** — Switch to trusted publishing

##### [16.3.1](https://github.com/testing-library/react-testing-library/compare/v16.3.0...v16.3.1) (2025-12-15)


###### Bug Fixes

* Switch to trusted publishing ([#1437](https://github.com/testing-library/react-testing-library/issues/1437)) ([a2d37ff](https://github.com/testing-library/react-testing-library/commit/a2d37ffa09d85b10485f29b79cf7cb4f8ec943db))

### v16.3.0

- Date: 2025-04-02
- Version: v16.3.0
- Original notes: https://github.com/testing-library/react-testing-library/releases/tag/v16.3.0
- Permalink: https://whatsnew.fyi/product/react-testing-library/releases/v16.3.0

#### [16.3.0](https://github.com/testing-library/react-testing-library/compare/v16.2.0...v16.3.0) (2025-04-02)


###### Features

* add bernardobelchior as a contributor for code, and doc ([#1391](https://github.com/testing-library/react-testing-library/issues/1391)) ([9fc6a75](https://github.com/testing-library/react-testing-library/commit/9fc6a75d74bb8e03a48d3339efde4dd83cd5328b))

### v16.2.0

- Date: 2025-01-15
- Version: v16.2.0
- Original notes: https://github.com/testing-library/react-testing-library/releases/tag/v16.2.0
- Permalink: https://whatsnew.fyi/product/react-testing-library/releases/v16.2.0

- **added** — Add support for React error handlers

#### [16.2.0](https://github.com/testing-library/react-testing-library/compare/v16.1.0...v16.2.0) (2025-01-15)


###### Features

* Add support for React error handlers ([#1354](https://github.com/testing-library/react-testing-library/issues/1354)) ([9618c51](https://github.com/testing-library/react-testing-library/commit/9618c5133706ec964f649e60a777cc384db58a3f))

### v16.1.0

- Date: 2024-12-05
- Version: v16.1.0
- Original notes: https://github.com/testing-library/react-testing-library/releases/tag/v16.1.0
- Permalink: https://whatsnew.fyi/product/react-testing-library/releases/v16.1.0

- **added** — Add support for React 19

#### [16.1.0](https://github.com/testing-library/react-testing-library/compare/v16.0.1...v16.1.0) (2024-12-05)


###### Features

* Add support for React 19 ([#1367](https://github.com/testing-library/react-testing-library/issues/1367)) ([85ac253](https://github.com/testing-library/react-testing-library/commit/85ac2534a59abd38880011e77da4bb8c716eba84))

### v16.0.1

- Date: 2024-08-29
- Version: v16.0.1
- Original notes: https://github.com/testing-library/react-testing-library/releases/tag/v16.0.1
- Permalink: https://whatsnew.fyi/product/react-testing-library/releases/v16.0.1

- **fixed** — Add support for exactOptionalPropertyTypes in TypeScript

##### [16.0.1](https://github.com/testing-library/react-testing-library/compare/v16.0.0...v16.0.1) (2024-08-29)


###### Bug Fixes

* Add support for exactOptionalPropertyTypes in TypeScript ([#1351](https://github.com/testing-library/react-testing-library/issues/1351)) ([3dcd8a9](https://github.com/testing-library/react-testing-library/commit/3dcd8a9649e25054c0e650d95fca2317b7008576))

### v16.0.0

- Date: 2024-06-03
- Version: v16.0.0
- Original notes: https://github.com/testing-library/react-testing-library/releases/tag/v16.0.0
- Permalink: https://whatsnew.fyi/product/react-testing-library/releases/v16.0.0

- **changed** — Move @testing-library/dom to peer dependencies
- **changed** — Move @types/react-dom to peer dependencies

#### [16.0.0](https://github.com/testing-library/react-testing-library/compare/v15.0.7...v16.0.0) (2024-06-03)


###### Features

* Move `@testing-library/dom` and `@types/react-dom`  to peer dependencies ([#1305](https://github.com/testing-library/react-testing-library/issues/1305)) ([a4744fa](https://github.com/testing-library/react-testing-library/commit/a4744fa904bf11812c92093226c3805450472636))


###### BREAKING CHANGES

* `@testing-library/dom` was moved to a peer dependency and needs to be explicitly installed. This reduces the chance of having conflicting versions of `@testing-library/dom` installed that frequently caused bugs when used with `@testing-library/user-event`. We will also be able to allow new versions of `@testing-library/dom` being used without a SemVer major release of `@testing-library/react` by just widening the peer dependency.
`@types/react-dom` needs to be installed if you're typechecking files using `@testing-library/react`.