| ⇢ | A | JsonRpcMethodNotFoundException::getMethodName() added | |
| ⇢ | A | JsonRpcInvalidRequestException::getContent() added | |
| ⇢ | A | JsonRpcInvalidRequestException::getDescription() added | |
| ⇢ | A | JsonRpcParseErrorException::getParseErrorCode() added | |
| ⇢ | A | JsonRpcParseErrorException::getContent() added | |
| ⇢ | A | JsonRpcParseErrorException::getParseErrorMessage() added | |
| A | ↘ | B | RawRequestSerializer::decode() got worse |