# Material UI v9.1.2

- Product: Material UI (https://whatsnew.fyi/product/material-ui)
- Vendor: MUI
- Date: 2026-06-23
- Version: v9.1.2
- Original notes: https://github.com/mui/material-ui/releases/tag/v9.1.2
- Permalink: https://whatsnew.fyi/product/material-ui/releases/v9.1.2

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'.

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- **fixed** — Don't submit forms when committing freeSolo value with Enter key in autocomplete
- **fixed** — Fix RTG import in ESM for transitions
- **fixed** — Fix script tag warning in Next.js 16 dev mode in InitColorSchemeScript
- **fixed** — Fix code-block copy button broken on direct page load

A big thanks to the 5 contributors who made this release possible.

###### `@mui/material@9.1.2`

- [autocomplete] Don't submit forms when committing `freeSolo` value with Enter key (#48679) @mj12albert
- [transitions] Fix RTG import in ESM (#48645) @mj12albert

###### `@mui/system@9.1.2`

- [InitColorSchemeScript] Fix script tag warning in Next.js 16 dev mode (#48671) @siriwatknp

###### Docs

- Fix typos in release instructions (#48687) @brijeshb42
- Update @mui/x-* packages to latest (#48661) @Janpot

###### Core

- [code-infra] Convert leaf @mui/system .js+.d.ts pairs to TypeScript (part 1) (#48578) @Janpot
- [code-infra] Bump to latest code-infra packages (#48672) @brijeshb42
- [code-infra] Resolve remaining minimatch advisory (#48662) @Janpot
- [code-infra] Bump nx to resolve minimatch advisory (#48658) @Janpot
- [core] Drop @babel/* pnpm overrides (#48710) @Janpot
- [docs-infra] Revert "Pin StackBlitz demo vite to v7 and plugin-react to v5" (#48709) @Janpot
- [docs-infra] Fix code-block copy button broken on direct page load (#48653) @brijeshb42
- [test] Stabilize Data Grid demo data in Argos screenshots (#48654) @LukasTy


All contributors of this release in alphabetical order: @brijeshb42, @Janpot, @LukasTy, @mj12albert, @siriwatknp