# ActiveReports Version Compatibility and Migration

Learn how to migrate projects created with previous versions of ActiveReports to ActiveReports 18.

## Content

ActiveReports 20 supports the side-by-side installation with previous versions and allows to migrate from version to version.
We recommend that you follow certain rules for migrating from one version to another. In case of any question, please contact our **Support Team** by using any of these channels:

| Web site | [https://developer.mescius.com/support/contact](https://developer.mescius.com/support/contact) |
| -------- | --------------------------------------------- |
| E-mail | [activereports.sales@mescius.com](mail:activereports.sales@mescius.com) |

>type=note
> **Note**: As not all old versions of ActiveReports are supported, you should check migration possibilities without delay. This will help us fix problems that may appear.

## Migration Rules

* Perform migration in testing branches. Do not migrate in production without a possibility to roll back.
* We recommend that you first use the **ActiveReports Upgrade** tool.
    ![ActiveReports20 upgrade tool](https://cdn.mescius.io/document-site-files/images/19d442d0-3c6c-4bb1-b916-7197bf606006/convert-to-20-20260708.793068.png)
    This tool upgrades reports and links but it cannot process:
    * JS code/dependencies
    * Some breaking changes
    * Some problems in Web environments
* Verify affected functions and breaking changes.
* Contact our **Support Team** in case of any problem.

## See Also

[Compatibility of Visual Studio Integrated Designers](/activereportsnet/docs/v20.1/developers/activereports-version-compatibility-migration/compatibility-vs-integrated-designers)
[Upgrade Reports and References](/activereportsnet/docs/v20.1/developers/activereports-version-compatibility-migration/upgrade-reports-references)