[Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.12.0-rc.6...v0.12.0-rc.7) * Reword group setting delay [\#1816](https://github.com/matrix-org/matrix-react-sdk/pull/1816) * Improve group joining/leaving feedback [\#1831](https://github.com/matrix-org/matrix-react-sdk/pull/1831)