: The Jaspersoft Community Edition page typically prioritizes the most recent versions. Earlier community releases have been retired from some open-source hosting sites due to license modifications.
: The JasperReports Library files, including version 6.6.0, are often archived on SourceForge Third-Party Mirrors
sourceforge.net/projects/jaspersoftstudio/files/jaspersoftstudio/6.6.0/
The current standard is version 7.x (or higher).