# react-markdown: what changed from 9 to 10

- Product: react-markdown (https://whatsnew.fyi/product/react-markdown)
- Vendor: react-markdown
- Range: changelog entries numbered after 9.1.0 up to and including 10.1.0, stable releases only
- Entries below: 3 releases (newest first)
- Resolved: 9 is 9.1.0 and 10 is 10.1.0, the newest stable release of each major we track
- Carrying security changes: 0 · CVEs mentioned: 0 · Mentioning breaking changes: 0 · Removing or deprecating something: 1
- Page: https://whatsnew.fyi/product/react-markdown/compare/9...10

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 (4 changes, grouped by kind)

### Added

#### 10.1.0 (2025-03-07)

- Add `fallback` prop to `MarkdownHooks`

### Fixed

#### 10.1.0 (2025-03-07)

- Fix race condition in `MarkdownHooks`

#### 10.0.1 (2025-03-03)

- Fix TypeScript performance around components

### Removed

#### 10.0.0 (2025-02-20)

- Remove support for className prop

## Release notes

### 10.1.0

- Date: 2025-03-07
- Version: 10.1.0
- Original notes: https://github.com/remarkjs/react-markdown/releases/tag/10.1.0
- Permalink: https://whatsnew.fyi/product/react-markdown/releases/10.1.0

- **added** — Add `fallback` prop to `MarkdownHooks`
- **fixed** — Fix race condition in `MarkdownHooks`

###### Add

* 939c667 Add `fallback` prop to `MarkdownHooks`
  by @remcohaszing in https://github.com/remarkjs/react-markdown/pull/897

###### Fix

* a40ae2e Fix race condition in `MarkdownHooks`
  by @remcohaszing in https://github.com/remarkjs/react-markdown/pull/896

**Full Changelog**: https://github.com/remarkjs/react-markdown/compare/10.0.1...10.1.0

### 10.0.1

- Date: 2025-03-03
- Version: 10.0.1
- Original notes: https://github.com/remarkjs/react-markdown/releases/tag/10.0.1
- Permalink: https://whatsnew.fyi/product/react-markdown/releases/10.0.1

- **fixed** — Fix TypeScript performance around components

* 7c17ede Fix TypeScript performance around components
  by @remcohaszing in https://github.com/remarkjs/react-markdown/pull/893

**Full Changelog**: https://github.com/remarkjs/react-markdown/compare/10.0.0...10.0.1

### 10.0.0

- Date: 2025-02-20
- Version: 10.0.0
- Original notes: https://github.com/remarkjs/react-markdown/releases/tag/10.0.0
- Permalink: https://whatsnew.fyi/product/react-markdown/releases/10.0.0

- **removed** — Remove support for className prop

* aaaa40b Remove support for `className` prop
  see [“Remove className”](https://github.com/remarkjs/react-markdown/blob/main/changelog.md#remove-classname)

**Full Changelog**: https://github.com/remarkjs/react-markdown/compare/9.1.0...10.0.0