This is legacy documentation for Capistrano 2.x. For Capistrano 3.x, please refer to http://www.capistranorb.com/.
If you are new to Capistrano 2.x please read Getting Started; once you are familiar with the basics, you may want to read From the beginning which is a much more detailed tutorial. There is also an FAQ here.
You may also want to read and/or contribute to the Capistrano handbook - an immature document that holds some really useful tips, but needs a lot more work!
There are extensive archives of questions and answers also at stackoverflow.com, tagged #capistrano.
For bugs and problems please open an issue in the Github issues page - preferably with a patch, test-case, or steps-to-reproduce. Pull requests on Github will be ignored without a corresponding ticket, as there is no history of changes or forum for discussion without submitting a ticket.