I know that iReports update the versions by default, so I need set the compatible mode to an older version of JasperReports.
Your answer are greatly appreciated,
iReport is no longer being developed nor supported. However, you'll be able to download earlier versions from sourceforge.
Update can be disabled by following steps:
Options -> Configure Plugins -> Check for iReport updates -> Configure -> Uncheck "Check for update on iReport startup"
iReport is based on NetBeans and not eclipse. If you're working on eclipse, you're already using Jaspersoft Studio.
On Jaspersoft Studio to disable update, do the following:
1. From menu select "Window" -> "Preferences"
2. From the left side menu, select "Jaspersoft Studio"
3. Uncheck "Check for updates on start".