# JS API Changes of the Compiler and Runtime Subsystem

The table below lists the APIs changes of the compiler and runtime subsystem in OpenHarmony 3.2 Beta2 over OpenHarmony 3.2 Beta1.

## API Changes

| Module| Class| Method/Attribute/Enumeration/Constant| Change Type|
|---|---|---|---|
| ohos.util | util | promisify(original: (err: Object, value: Object) => void): Function; | Added|