> This API is deprecated since API version 9. You are advised to use [thermal.registerThermalLevelCallback](#thermalregisterthermallevelcallback9) instead.
> This API is deprecated since API version 9. You are advised to use [thermal.registerThermalLevelCallback](#thermalregisterthermallevelcallback9) instead.
> This API is deprecated since API version 9. You are advised to use [thermal.unregisterThermalLevelCallback](#thermalunregisterthermallevelcallback9) instead.
> This API is deprecated since API version 9. You are advised to use [thermal.unregisterThermalLevelCallback](#thermalunregisterthermallevelcallback9) instead.
| Promise\<boolean\> | Promise used to return the result. The value **true** indicates that the operation is successful, and the value **false** indicates the opposite.|
| Promise\<void\> | Promise used to return the result.|
| Promise\<boolean\> | Promise used to return the result. The value **true** indicates that the operation is successful, and the value **false** indicates the opposite.|
| Promise\<void\> | Promise used to return the result. |
| Full code base (for mini, small, and standard systems)| 3.0 | [Download](https://repo.huaweicloud.com/openharmony/os/3.0/code-v3.0-LTS.tar.gz) | [Download](https://repo.huaweicloud.com/openharmony/os/3.0/code-v3.0-LTS.tar.gz.sha256)|
| Full code base (for mini, small, and standard systems)| 3.0 | [Download](https://repo.huaweicloud.com/openharmony/os/3.0/code-v3.0-LTS.tar.gz) | [Download](https://repo.huaweicloud.com/openharmony/os/3.0/code-v3.0-LTS.tar.gz.sha256)| 7.0 GB |
| Standard system solution (binary)| 3.0 | [Download](https://repo.huaweicloud.com/openharmony/os/3.0/standard.tar.gz)| [Download](https://repo.huaweicloud.com/openharmony/os/3.0/standard.tar.gz.sha256)|
| Standard system solution (binary)| 3.0 | [Download](https://repo.huaweicloud.com/openharmony/os/3.0/standard.tar.gz)| [Download](https://repo.huaweicloud.com/openharmony/os/3.0/standard.tar.gz.sha256)| 973.7 MB |
| **Source code of the Latest Release**| **Version Information**| **Site**| **SHA-256 Verification Code**|
| **Source code of the Latest Release**| **Version**| **Site**| **SHA-256 Checksum**| **Software Package Size**|
| Full code base (for mini, small, and standard systems)| 3.2 Beta3 | [Download](https://repo.huaweicloud.com/openharmony/os/3.2-Beta3/code-v3.2-Beta3.tar.gz)| [Download](https://repo.huaweicloud.com/openharmony/os/3.2-Beta3/code-v3.2-Beta3.tar.gz.sha256)|
| Full code base (for mini, small, and standard systems)| 3.2 Beta4 | [Download](https://repo.huaweicloud.com/harmonyos/os/3.2-Beta4/code-v3.2-Beta4.tar.gz) | [Download](https://repo.huaweicloud.com/harmonyos/os/3.2-Beta4/code-v3.2-Beta4.tar.gz.sha256) | 19.0 GB |
| RK3568 standard system solution (binary)| 3.2 Beta3 | [Download](https://repo.huaweicloud.com/openharmony/os/3.2-Beta3/standard_rk3568.tar.gz)| [Download](https://repo.huaweicloud.com/openharmony/os/3.1.1/standard_rk3568.tar.gz.sha256)|
| RK3568 standard system solution (binary)| 3.2 Beta4 | [Download](https://repo.huaweicloud.com/harmonyos/os/3.2-Beta4/dayu200_standard_arm32.tar.gz) | [Download](https://repo.huaweicloud.com/harmonyos/os/3.2-Beta4/dayu200_standard_arm32.tar.gz.sha256) | 3.2 GB |