[Full Changelog](https://github.com/vector-im/element-web/compare/v1.7.21...v1.7.22-rc.1) * Upgrade to React SDK 3.15.0-rc.1 and JS SDK 9.8.0-rc.1 * Translations update from Weblate [\#16529](https://github.com/vector-im/element-web/pull/16529) * Add hostSignup config for element.io clients [\#16515](https://github.com/vector-im/element-web/pull/16515) * VoIP virtual rooms, mkII [\#16442](https://github.com/vector-im/element-web/pull/16442) * Jitsi widget: Read room name from query parameters [\#16456](https://github.com/vector-im/element-web/pull/16456) * fix / sso: make sure to delete only loginToken after redirect [\#16415](https://github.com/vector-im/element-web/pull/16415) * Disable Countly [\#16433](https://github.com/vector-im/element-web/pull/16433)