# Upgrade guide for Grid v4.2.3

## PdfExport feature

PdfExport feature's `beforeExport` event signature has changed, all the export configs
are wrapped in a single `config` object:

**Old code:**

```javascript
grid.on({
    beforeExport({ orientation }) { /*...*/ }
})
```

**New code:**

```javascript
grid.on({
    beforeExport({ config }) {
        const { orientation } = config;
        /*...*/
    }
});
```

PdfExport feature's `export` event should be listened for
on the Grid instance too:

**Old code:**

```javascript
grid.feature.on({
    export() { /*...*/ }
})
```

**New code:**

```javascript
grid.on({
    export() { /*...*/ }
})
```


<p class="last-modified">Last modified on 2023-10-26 8:19:11</p>