| ⇢ | A | RequestConfigurator added |
| ⇢ | A | RequestConfigurator::setAppCode() added | |
| ⇢ | A | RequestConfigurator::setTimeout() added | |
| ⇢ | A | RequestConfigurator::setProxy() added | |
| ⇢ | A | RequestConfigurator::setClient() added | |
| ⇢ | A | RequestConfigurator::setClientVersion() added | |
| ⇢ | A | RequestConfigurator::setProtocolVersion() added | |
| ⇢ | A | RequestConfigurator::withRequest() added | |
| ⇢ | A | RequestConfigurator::getOptions() added | |
| B | ↗ | A | GuzzleClient::__construct() improved |