[Full Changelog](https://github.com/matrix-org/matrix-js-sdk/compare/v8.2.0...v8.3.0-rc.1) * Add missing options in ICreateClientOpts [\#1452](https://github.com/matrix-org/matrix-js-sdk/pull/1452) * Ensure ready functions return boolean values [\#1457](https://github.com/matrix-org/matrix-js-sdk/pull/1457) * Handle missing cross-signing keys gracefully [\#1456](https://github.com/matrix-org/matrix-js-sdk/pull/1456) * Fix eslint ts override tsx matching [\#1451](https://github.com/matrix-org/matrix-js-sdk/pull/1451) * Untangle cross-signing and secret storage [\#1450](https://github.com/matrix-org/matrix-js-sdk/pull/1450)