See https://docs.sonarqube.org/display/SONAR/Documentation for current functionality
Upgrade the Flex Plugin
This plugin must be upgraded to version 1.2. Previous versions are not supported.
Drools Plugin 0.2 must be uninstalled
The Drools plugin must be uninstalled as long as it does not support SonarQube3.3.
End of support of Tomcat 5.x
All the Servlet 2.4 application servers, including Tomcat 5.5, are not supported anymore when using the WAR deployment mode.
End of support of the property sonar.light=true
This property has been replaced long time ago by the property
Solaris: Issue with JRuby 1.6.6 / 1.6.7
Due to JRuby issue, the following line has to be added in conf/wrapper.conf:
Note that this property has to be set when launching Tomcat (as the wrapper.conf file is not used when deploying in application server).