| C | ↗ | B | UaProcessor improved |
| ⇢ | A | SecureConnection.set_channel() added | |
| ⇢ | A | SecureConnection.open() added | |
| ⇢ | A | SecureConnection.close() added | |
| ⇢ | A | SecureConnection.is_open() added | |
| A | ↘ | B | SecureConnection.message_to_binary() got worse |
| F | ↗ | C | UaProcessor.process() improved |
| A | ↛ | UaProcessor._open_secure_channel() removed | |
| A | ↛ | SecureConnection.set_security_token() removed |