| ⇢ | A | Socket added | |
| B | ↗ | A | Connection improved | 
| ⇢ | A | Socket::connect() added | |
| ⇢ | A | Socket::disconnect() added | |
| ⇢ | A | Socket::read() added | |
| ⇢ | A | Socket::write() added | |
| ⇢ | A | Socket::setBlocking() added | |
| ⇢ | A | Socket::enableCrypto() added | |
| ⇢ | A | Socket::eof() added | |
| C | ↘ | D | Connection::sendCommand() got worse |