[Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v1.4.0-rc.3...v1.4.0) * Upgrade to JS SDK 2.2.0 * Don't show remove button for original event in edit history [\#3236](https://github.com/matrix-org/matrix-react-sdk/pull/3236) * Remove feature flags for reactions and edits [\#3234](https://github.com/matrix-org/matrix-react-sdk/pull/3234) * Enable reactions and edits by default [\#3232](https://github.com/matrix-org/matrix-react-sdk/pull/3232) * Improve interactive tooltip safe mousing area [\#3231](https://github.com/matrix-org/matrix-react-sdk/pull/3231) * Add a previous event safe area around action bar [\#3230](https://github.com/matrix-org/matrix-react-sdk/pull/3230)