How to upgrade Jenkins ?

1. Shutdown Jenkins .
2. Take backup of current Jenkins repository
3. Download jenkins.war file & put it in current webapps folder of apache tomcat.
4. Restart Jenkins
5. Start Sonar & Jenkins

Very easy and straight forward right ??????

How to upgrade sonar ?

1.    Take backup of current sonar filesystem & DB.
2.    Unzip sonar351 (Your current sonar version) in /opt/ folder.
3.    Shutdown Sonar.
4.     Update the content of the sonar.properties and wrapper.conf files located in the     {$NEW_SONAR_HOME}/conf directory according of the content of the related files in the {$OLD_SONAR_HOME}/conf directory
5.    Copy the directories extensions/plugins and extensions/rules from {$OLD_SONAR_HOME} to {$NEW_SONAR_HOME} (if you see problems while starting, try to remove the copied plugins from the extensions/plugins-directory and reinstall the plugins manually via the webinterface)
6.    Update sonar.properties with ldap settings
7.    Update sonar with http://url/setup
8.     Rename /opt/sonar351 to /opt/sonar
9.    Start Sonar