[tor-dev] Question on Tor Design (current and maybe past and future)

Hi,

can one of the core developers tell me if there exists a current summary of the design of Tor?

I've started looking into OR for GNUnet and as far as I know from the papers in the anonbib and one 2013 presentation slides I've read so far, Tor went through many changes over the years. I'm interested in what you use today, where you are heading (or what you are considering for the future) and maybe reasons why past designs were changed.

Best regards, ng0