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# Upgrading from 2.1.x to 2.2.x

Always remember to unpack integration packages that you’re using when importing new version of Mad Level Manager!

## Upgrading from older versions

If you’re still on older version of Mad Level Manager, please read the following:

- Upgrading from 1.2.x to 1.3.x
- Upgrading from 1.3.x to 1.4.x
- Upgrading from 1.4.x to 1.5.x
- Upgrading from 1.5.x to 2.0.x
- Upgrading from 2.0.x to 2.1.x

## General info

Always backup your current project before the upgrade. If you’re not using any SCM, then full backup of your project should be done.

Upgrading Mad Level Manager is very simple, and in most cases after importing the new version everything should be fine. In some cases importing the new version over existing one may fail. You may notice this immediately (compilation errors), or after some time (script referenced in documentation is missing). This is because the unitypackage format, which is used to distribute assets, is not perfect. If you want to be 100% sure that Mad Level Manager is imported 100% correctly, please remove Mad Level Manager directory from your Project manually before importing the new version.

Don’t forget to manually unpack all integration packages for tools that you’re using after each upgrade!

## Issues not listed here

There’s possibility that you will encounter issues that are not listed here. If something like this happens, please write to support@madpixelmachine.com. We will assist you the best as we can!