The Release notes for SonarQube 5.2 indicate that scanners no longer access the database directly.
With SonarQube 5.1, it's possible to ensures that the dashboard only ever shows reports on code in version control by configuring the database to only accept connections from the build server.
With SonarQube 5.2, I wouldn't expect this approach to work, because scanners aren't connecting directly to the database.
How can SonarQube 5.2 be secured so that only the build server can update the results shown on the dashboard?