The release 1.4.2 is available for download. It fixes two bugs :

• SONAR-344 Configuration of custom rules is not read when importing checkstyle.xml file
• SONAR-351 MySql broken pipe on inactivity timeout

Upgrade steps from 1.4.* releases are :

• unzip the distribution
• replace sonar-1.4.2/conf/, sonar-1.4.2/extensions/ and sonar-1.4.2/data/ directories by yours
• If MySql database, add the following property to sonar-1.4.2/conf/sonar.properties :
  sonar.jdbc.validationQuery: select 1
• start the server
• update the maven plugin version :
  mvn org.codehaus.sonar:sonar-maven-plugin:1.4.2:sonar