# Upgrade

## Publish Extension

An extension can be published using the Business Central Administrations Shell. To do this, run it as an administrator. Use the following command to publish the extension:

{% code title="Powershell" %}

```powershell
Publish-NAVApp -ServerInstance [Your Serverinstance] -Path [Path of extension]
```

{% endcode %}

{% hint style="info" %}
When entering your data, the square brackets must be removed.
{% endhint %}

## Synchronize extension with database <a href="#id-2-synchronize-extension-with-database" id="id-2-synchronize-extension-with-database"></a>

After you have published the extension, you must synchronize it with your database. To do this, run the following command in the Business Central Administrations Shell:

{% code title="Powershell" %}

```powershell
Sync-NAVApp -ServerInstance [Your Serverinstance] -Name demandPlus+ -Version [New Version]l
```

{% endcode %}

{% hint style="info" %}
When entering your data, the square brackets must be removed.
{% endhint %}

## Perform data upgrade <a href="#id-3-perform-data-upgrade" id="id-3-perform-data-upgrade"></a>

Finally, you must perform a data upgrade. This will uninstall your old version and activate the new version instead. In addition, this step also performs the internal upgrade processes. To do this, execute the following command in the Business Central Administrations Shell

{% code title="Powershell" %}

```powershell
Start-NAVAppDataUpgrade -ServerInstance [Your Serverinstance] -Name demandPlus+ -Version [New Version]
```

{% endcode %}

{% hint style="info" %}
When entering your data, the square brackets must be removed.
{% endhint %}


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