# What changed in @uiw/react-codemirror

> 6 changes in @uiw/react-codemirror 4 from its official release notes, upgrade guides and advisories. Each one cited. Sources checked 2026-10-18. HTML: https://unstale.sh/npm/@uiw/react-codemirror/

To see which of these apply to a repository, run `npx @unstale/cli init` in it.

## @uiw/react-codemirror 4

### Fixes and other changes

- Generated runtime dependencies are now declared, so they can be included correctly when installing the package. (4.25.12) — [release notes](https://github.com/uiwjs/react-codemirror/releases/tag/v4.25.12)
- Prevents a memory leak when the default theme is recreated. (4.25.11) — [release notes](https://github.com/uiwjs/react-codemirror/releases/tag/v4.25.11)
- Corrected the module type in all packages. (4.25.8) — [release notes](https://github.com/uiwjs/react-codemirror/releases/tag/v4.25.8)
- All language packages are declared as explicit dependencies, so they are included in the package's dependency metadata. (4.25.6) — [release notes](https://github.com/uiwjs/react-codemirror/releases/tag/v4.25.6)
- Fixed trailing slash handling in the hyperlink extension. (4.25.5) — [release notes](https://github.com/uiwjs/react-codemirror/releases/tag/v4.25.5)
- Fixes the Langs extension types. (4.25.3) — [release notes](https://github.com/uiwjs/react-codemirror/releases/tag/v4.25.3)