aria2 is a lightweight multi-protocol & multi-source, cross platform download utility operated in command-line. It supports HTTP/HTTPS, FTP, BitTorrent and Metalink.
This release adds Mac OS X native SSL/TLS library support. The IPv6
asynchronous DNS is enabled by default and A/AAAA lookups are done in
parallel. The simple Happy Eyeballs algorithm was implemented to
mitigate long timeout when connecting to IPv6 host on dual-stack host.
--save-session option only saves the options specified by command-line
or RPC.