---
title: "New feature: New List Operations"
description: New HubL list functions to make manipulating lists easier. append(), copy(), count(), clear(), extend(), index(), insert(), pop(), reverse(), and update() are now available.
image: https://428357.hs-sites.com/hubfs/raw_assets/public/developers-website/images/CMS-og-image.png
---

# HubSpot Developer Changelog

high-search

### New feature: New List Operations

Announced: September 18, 2019

## What's happening?

We've released a set of new functions for manipulating lists in HubL. These functions enable you to work with lists more easily.

## What's changing?

We've added new list functions to make it easier to manipulate and work with lists in HubL. Examples of how to use each have been added to the HubL functions docs.

- [`append()`](https://designers.hubspot.com/en/docs/hubl/hubl-supported-functions#append)
- [`copy()`](https://designers.hubspot.com/en/docs/hubl/hubl-supported-functions#copy)
- [`count()`](https://designers.hubspot.com/en/docs/hubl/hubl-supported-functions#count)
- [`clear()`](https://designers.hubspot.com/en/docs/hubl/hubl-supported-functions#clear)
- [`extend()`](https://designers.hubspot.com/en/docs/hubl/hubl-supported-functions#extend)
- [`index()`](https://designers.hubspot.com/en/docs/hubl/hubl-supported-functions#index)
- [`insert()`](https://designers.hubspot.com/en/docs/hubl/hubl-supported-functions#insert)
- [`pop()`](https://designers.hubspot.com/en/docs/hubl/hubl-supported-functions#pop)
- [`reverse()`](https://designers.hubspot.com/en/docs/hubl/hubl-supported-functions#reverse)
- [`update()`](https://designers.hubspot.com/en/docs/hubl/hubl-supported-functions#update)

These functions can be used in the [`{% do %}`](https://designers.hubspot.com/docs/hubl/syntax#expression-statements) tag.

If you have any questions or comments, please let us know in the [developer forums](https://community.hubspot.com/t5/CMS-Development/New-HubL-List-functions-released/m-p/292026#M13644).