lftp 4.4.0 发布，LFTP是一款非常著名的字符界面的文件传输工具。支持FTP、HTTP、FISH、SFTP、HTTPS和FTPS协议。如果还需要ssl的支持，则需要额外的OpenSSL依赖。
改进记录：
- Implements Bittorrent extensions (FAST, DHT, LTEP, ut_metadata, ut_pex).
- Adds support for magnet links.
- A new setting torrent:use-dht.
- A new torrent option --dht-bootstrap for manual bootstrapping.
- Adds support for name.utf-8 and path.utf-8 in torrent metadata.
- Now net:limit-rate and net:limit-total-rate settings can use suffixes, e.g.
- `set net:limit-total-rate 1M:500k'.
- Allows numeric user names.
- Doesn't try to upload if ALLO fails.
- Always sends PROT to FTP servers when AUTH is activated.
- Several bugs have been fixed