# Upgrade guide for Scheduler v4.3.3

## EventTooltips now hide by default on scroll

Previously they realigned on scroll. This change was done to boost scrolling performance, since realigning the tooltip 
has negative impact on that. To restore the old behaviour, configure the feature with `scrollAction : 'realign'`.

**Old code:**

```javascript
new Scheduler({
    feature : {
        eventTooltip : true
    }
})
```

**New code:**

```javascript
new Scheduler({
    feature : {
        eventTooltip : {
            scrollAction : 'realign'
        }
    }
})
```


<p class="last-modified">Last modified on 2023-10-26 8:19:20</p>