If you need help with Cage or want to discuss new ideas please join the mailing list hosted at Google Groups.
Subscribe to Cage - Mailing List
If you are already a member of the list you can post to it by sending an email to the cage-lib@googlegroups.com address.
Archives are available online.
If you want propose an enhancement or found a bug please open a new ticket in the issue tracker.
For bugs do not forget to specify the environment and cage version you are using and to attach a small quick start that reproduces your issue.
Patches are highly appreciated.