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# What's new in Sigma

> Sigma release notes for Jun 21, 2024: ArrayJoin function, placeholder text in control elements, and more.

## Functions and calculations

### ArrayJoin function

The **ArrayJoin** function joins elements of an array into a single text string.

For more information, see [ArrayJoin](https://help.sigmacomputing.com/docs/arrayjoin).

## Workbook elements

### Placeholder text in control elements

Customize placeholder text for any input-based control element (**List values**, **Text input**, **Number input**, **Date**, and **Date range**) to provide context about the expected input.

Go to **Element format** > **General** and update the **Placeholder** field. Placeholder text displays directly in the control's input field and clears when the field contains user input.