End of support of MSSQL 2008
As mentioned in the previous upgrade notes, MSSQL is no longer supported ( SONAR-7893 - End of support of MSSQL 2008 Closed ).
Customisable project dashboards are now fully removed ( SONAR-7915 - Drop project level dashboardsClosed)
AJP connector support is also removed ( SONAR-7989 - Remove support of AJP ConnectorClosed)
For plugin developers: ModuleFileSystem API was dropped ( SONAR-7864 - Drop org.sonar.api.scan.filesystem.ModuleFileSystem from APIClosed) so your plugin might not be compatible with SonarQube 6.1 and therefore break all analyses.