---
title: "Upgrade notes | Customer's Canvas On-Premises"
canonical: "https://customerscanvas.com/docs/on-premises/design-atoms-cs/upgrade-notes/"
---

# Upgrade notes

> If you are using Design Atoms older than 5.31 and would like to upgrade to the later, note that a number of breaking changes were made

## Upgrading to 5.31 and above

#### Installing a Separate Model Package

In Customer's Canvas 5.31, the object model was separated from the `Aurigma.DesignAtoms` package. To rebuild your application, you must additionally install the new package:

```powershell
Install-Package Aurigma.DesignAtoms.Model
```

#### Using Common Classes

The `Math` class was moved to the `Aurigma.DesignAtoms.Model` namespace.

In your .cs code, replace

```csharp
using Aurigma.DesignAtoms.Common.Math;
```

with

```csharp
using Aurigma.DesignAtoms.Model.Math;
```