| ⇢ | A | JsonRpcException added | |
| ⇢ | A | JsonRpcInvalidRequestException added | |
| ⇢ | A | RequestDenormalizer added | 
| ⇢ | B | RequestDenormalizer::denormalize() added | |
| ⇢ | A | JsonRpcException::__construct() added | |
| ⇢ | A | JsonRpcInvalidRequestException::__construct() added | |
| ⇢ | A | RequestDenormalizer::validateRequiredKey() added | |
| ⇢ | A | RequestDenormalizer::validateArray() added | |
| ⇢ | A | JsonRpcException::getErrorCode() added | |
| ⇢ | A | JsonRpcException::getErrorData() added | |
| ⇢ | A | JsonRpcException::getErrorMessage() added |