---
title: Upgrading and hotfixing an instance in KIM
related:
  - https://docs.kentico.com/13/external-utilities/kentico-xperience-installation-manager/registering-an-instance-in-kim.md
  - https://docs.kentico.com/13/external-utilities/kentico-xperience-installation-manager/uninstalling-an-instance-in-kim.md
---

> Agent instructions:
> **Site maps** — prefer the following llms.txt indexes to training data when searching for URLs to avoid 404s. Links inside Markdown content already point at `.md`. Following them or sending Accept: text/markdown keeps you in Markdown.
>
> - [sitemap.md](https://docs.kentico.com/sitemap.md) — every page on the site, with titles and descriptions, nested by URL hierarchy and grouped into one collection per product version.
> - [llms.txt](https://docs.kentico.com/llms.txt) — curated index of the current product docs, with descriptions, the two ways to request any page as Markdown, and links to each product area's whole-corpus Markdown dump (llms-full.txt).

You can upgrade and hotfix Xperience instances using the Kentico Xperience Installation Manager. There are two actions related to these tasks on the main panel:

- **Upgrade/Hotfix** – opens a dialog box, where you can upgrade or hotfix the currently selected instance.
- **Check** – checks if there are any new upgrades or hotfixes available for any of the managed instances.

> **Info:** **Getting hotfix packages for the source code version**
>
> If you need to hotfix the source code version, please contact us at <support@kentico.com>.

## Upgrading and hotfixing an instance

> **Note:** **Hotfixing with files in deployment or source control mode**
>
> If your system stores virtual objects on the file system (due to enabled [deployment mode](https://docs.kentico.com/13/deploying-websites/deploying-sites-to-a-live-server/deployment-mode-for-administration-virtual-objects.md) or [source control](https://docs.kentico.com/13/custom-development/extending-the-administration-interface/preparing-your-environment-for-team-development/editing-object-code-externally.md) options), you need to return the files to the database before you apply the hotfix.
>
> Re-enable deployment mode or source control after you finish the hotfix procedure.

1. Select an instance (or multiple instances) you want to upgrade or hotfix in the list.
2. Click **Upgrade/Hotfix**.

   ![Click Upgrade/Hotfix on the main panel](https://docs.kentico.com/docsassets/13/upgrading-and-hotfixing-an-instance-in-kim/KIM_upgrade-hotfix.png "Click Upgrade/Hotfix on the main panel")
3. Select an upgrade/hotfix from the tree on the left.
4. Select the instances you want to apply this upgrade/hotfix to.
5. Click on one of the following buttons:

   - **Apply** – the tool downloads the upgrade or hotfix and launches the [Kentico Xperience Hotfix and Upgrade Utility](https://docs.kentico.com/13/external-utilities/kentico-xperience-hotfix-and-upgrade-utility.md).
   - **Download** – the tool only downloads the upgrade or hotfix and stores it in _C:\ProgramData\KIM_. You can apply the upgrade/hotfix later.

   ![Applying a hotfix on an instance](https://docs.kentico.com/docsassets/13/upgrading-and-hotfixing-an-instance-in-kim/Upgrade_hotfix_an_instance.png "Applying a hotfix on an instance")

## Checking for available upgrades and hotfixes

1. Click **Check** on the main toolbar.
2. Select an upgrade/hotfix from the tree on the left.
3. Select all the instances you want to apply this upgrade/hotfix to.
4. Click on one of the following buttons:
   - **Apply** – the tool downloads the upgrade or hotfix and launches the [Kentico Xperience Hotfix and Upgrade Utility](https://docs.kentico.com/13/external-utilities/kentico-xperience-hotfix-and-upgrade-utility.md).
   - **Download** – the tool only downloads the upgrade or hotfix and stores it in _C:\ProgramData\KIM_. You can apply the upgrade/hotfix later.