Deprecated the **fileio** APIs, which do not return error codes, and added APIs that return error codes.
**Change Impact**
For applications developed based on earlier versions, pay attention to the iterative update of deprecated APIs. The specifications of the new APIs are slightly adjusted. Pay attention to the usage of the new APIs.
**Key API/Component Changes**
The APIs of **@ohos.fileio** do not support error code handling and are deprecated. New APIs with minor changes in parameters are added in **@ohos.file.fs** to support unified error code handling specifications. The new APIs function the same as the original APIs. The following table lists the API changes.
The APIs of @ohos.file.fs support unified exception handling. For details, see [File Management](../../../application-dev/reference/apis/js-apis-file-fs.md).