aria2 1.19.0 released
aria2 1.18.10 released
aria2 1.18.9 released
--bt-prioritize-piece just prioritize first or last pieces and not designed for streaming....
There is no definitive answer. But I vaguely remember that c comes from "command-line"...
aria2 1.18.8 released
Use -V option.
Yes. sf.net pulled its plug off a while ago. Please use github issues.