| B | ↗ | A | Client improved | 
| ⇢ | A | AbstractClient::getConfigDefaultReadableFile() added | |
| ⇢ | A | AbstractClient::getConfigDefault() added | |
| ⇢ | A | AbstractClient::getConfigDefaultBool() added | |
| ⇢ | A | AbstractClient::getConfigDefaultArray() added | |
| ⇢ | A | AbstractClient::prepareEPPVersionLang() added | |
| B | ↗ | A | AbstractClient::prepareSSLOptions() improved |