See https://docs.sonarqube.org/display/SONAR/Documentation for current functionality
Notifications are no longer based on favorites. Each user can now subscribe to notifications for a specific list of projects.
Thus, after migrating to version 3.5, users will have to reset their notification subscriptions. See the Notification documentation page for more details.
JRE 6 now required
Oracle JRE 1.5 is no longer supported. JIRE 6 onwards is now required to run SonarQube.