Bump version to 2.1.0 🎉 and update changelog.

Bump version to 2.1.0-beta.7 🎉 and update changelog.

Bump version to 2.1.0-beta.6 🎉 and update changelog.

Bump version to 2.1.0-beta.5 🎉 and update changelog.

Bump version to 2.0.1 🎉 and update changelog.

Update beta branch version to 2.1.0-beta.3.

Update beta branch version to 2.1.0-beta.2.

Configure beta branch with version and experimental flag.

Bump version to 2.0.0 🎉 and update changelog.

Bump beta version to 2.0.0-rc.1 and update changelog.