# Upgrading

Some of the interfaces has been upgraded.

## From version 0.4.0 to 0.5.0

### Initialization

`mermaid_config` is no longer used. Instead a call to mermaid initialize is done as in the example below:

#### version 0.4.0

```javascript
mermaid_config = {
  startOnLoad: true,
};
```

#### version 0.5.0

```javascript
mermaid.initialize({
  startOnLoad: true,
});
```
