### Release 5.3.0 ¶

- Progress messages contain prefix, describing the running action.
- Fixed not occurring handshake messages padding.
- Finish all SP protocol related goroutines, less memory leak.
- SP protocol generates less socket write calls, thus generating less TCP packets.
- Check `onlinedeadline` and `maxonlinetime` options every second, independently from socket reads (up to 10 seconds).
- Once per minute, if no other traffic exists, PING packets are sent in SP-connection. That allows faster determining of connection unworkability.
- `nncp-toss` uses lock-file to prevent simultaneous tossing.