Last modified: May 28, 2024

Migration from v7

How to migrate from v7 to v8

As of writing this documentation, the latest preview release of v8 is 8.0.0. Updated information is available on GitHub.


This guide will help you migrate your app from using version 7 of the app nugets to version 8. There is currently no support in Altinn Studio for upgrading apps, so using the Altinn Studio CLI is the recommended way to migrate.

Migrate automatically using the Altinn Studio CLI

The Altinn Studio CLI is a command line tool for upgrading Altinn Apps. The tool is able to upgrade and fix most breaking changes between version 7 and 8 of the app nugets.

Verify that you have the latest version of the Altinn Studio CLI

If you do not have the CLI installed, you can install it by following the instructions in the installation guide.

Make sure you are using at least version 1.4.0 of the Altinn Studio CLI. You can check the version by running:

altinn-studio --version

If you have an older version, you can update it by running:

dotnet tool update -g

Run the upgrade command

First, navigate to the root folder of your app in your terminal. There are several optional arguments you can use with the upgrade backend command. You can see all the available options by running:

altinn-studio upgrade backend --help

The default options should work for most apps, but you may need to specify some options if you have a non-standard project structure. If some of the options are not correct, the CLI should print an error message explaining what went wrong.

It is recommended to have a clean working tree before running the upgrade command. This means that you should commit or stash any changes you have made to your code before running the command. That way you can easily see what changes the CLI made to your code, as well as reset and try again if something went wrong.

  1. Before running the upgrade you need to first restore any dependencies:
    dotnet restore
  2. When you are ready to upgrade, run the following command:
    altinn-studio upgrade backend

The CLI will then make the necessary changes to your code to upgrade it to version 8. The CLI will also print warnings and errors if it encounters any problems during the upgrade process, make sure to read these carefully.

Migrate manually

  1. To migrate manually from v7 to v8, you need to upgrade the nuget packages in your App.csproj file to version 8.0.0.

    -   <PackageReference Include="Altinn.App.Api" Version="7.15.3">
    +   <PackageReference Include="Altinn.App.Api" Version="8.0.0">
    -   <PackageReference Include="Altinn.App.Core" Version="7.15.3" />
    +   <PackageReference Include="Altinn.App.Core" Version="8.0.0" />
  2. Next, you need to fix the breaking changes in your code. See the changelog for v8 for more information. There may be additional breaking changes not documented in the changelog that are automatically fixed by the Altinn Studio CLI tool, so it is recommended to use the CLI tool to upgrade your app to v8 instead of doing it manually.