v6.19.2

[noraleonte]

• I have followed (at least) the PR section of the contributing guide.

Prepare the release of the packages

• Compare the last tag with the branch upon which you want to release (next for the alpha / beta releases and master for the current stable version).
• Clean the generated changelog, to match the format of https://github.com/mui/mui-x/releases.
• Update the root package.json's version
• Update the versions of the other package.json files and of the dependencies with yarn release:version (yarn release:version prerelease for alpha / beta releases).
• Open PR with changes and wait for review and green CI.
• Merge PR once CI is green, and it has been approved.

Release the packages

• Checkout the last version of the working branch
• yarn && yarn release:build (make sure you have the latest dependencies installed, and build the packages)
• yarn release:publish (release the versions on npm, you need your 2FA device)
• yarn release:tag (push the newly created tag)

Publish

• Publish docs
• Publish github release

[mui-bot]

Deploy preview: https://deploy-preview-11812--material-ui-x.netlify.app/

Generated by 🚫 dangerJS against 6f551a3

[michelengelen]

LGTM

[LukasTy]

🚀