Canto today announced the release of Cumulus 5.5.1, a free upgrade to its award-winning, cross platform line of digital asset management solutions for enterprises, workgroups and single users. Version 5.5.1 has been enhanced to enable Canto’s new Cumulus JAVA Classes and the Cumulus HELIOS Companion, products also announced today. In addition, this release includes a new update installer, basic image editing tools, support for new file formats and a variety of other enhancements to improve performance.