We only actively support the latest version of the software. All bug fixes and security updates will be made by patching or releasing new versions against the current latest version. No backporting will be carried out. With that said, the community is welcome to backport fixes and security updates to older versions, and we will be happy to review and release them.
To let us know about a security issue you have found. please email info@networkcanvas.com. Although we do not have the resources to offer any kind of reward, we would be extremely grateful for any instances of responsible disclosure that enable the community of network researchers to be more safe when collecting data using our software.