Last modified: May 28, 2024

What's new

Overview of changes introduced in version 4.

On this page:

4.34.1 (06.04.2022) - Support for specifying shipment type for eFormidling shipment

This release makes it possible to specify the shipment type for an eFormidling shipment.

Extend the eFormidling section i applicationmetadata.json with the new property dpfShipmentType as shown below.

  "eFormidling": {
    "dpfShipmentType": "altinn3.skjema"

4.33.0 (15.03.2022) - Support for turning off PDF generation

This release makes it possible to turn of PDF generation for a given form

This is defined in ApplicationMetaData for the given DataType. Default is true


      "id": "melding",
      "allowedContentTypes": [ "application/xml" ],
      "maxCount": 1,
      "appLogic": {
        "autoCreate": false,
        "ClassRef": "App.IntegrationTestsRef.Data.apps.dibk.nabovarsel.Melding"
      "taskId": "Task_1",
      "enablePdfCreation" : false

4.32.0 (14.03.2022) - Person lookup service client

The platform application Register has been given a new endpoint that can be used to verify correct national identity number. This version of the app template packages have a new person lookup client that can be used to perform lookups with the new endpoint in Register.

  • This release fixes a bug where prefilling the same value to more than one field throws a duplicate key exception. This has been solved by flipping the prefill dictionary.
  • Person identification number has been included to the platformUser data of an instance event.

4.30.0 (07.03.2022) - Support for readiness og liveness probes

An endpoint dedicated for health check has been implemented. This is used by Kubernetes to know when an instance of the application is ready for load.

All applications created before 16.06.2022 must be manually updated to enable the readiness and liveness probes.

  1. In App/Startup.cs

    1. Add the line using Altinn.App.Core.Health; amongst the using-statements at the top of the file

    2. In the function ConfigureServices, add the line

    3. In the function Configure add the line

  2. In deployment/Chart.yaml the reference to the Altinn Helm Chart should be updated to version 2.1.0

    The final result should resemble this:

    apiVersion: v1
    description: A Helm chart for Kubernetes
    name: deployment
    version: 1.1.0
    - name: deployment
       version: 2.1.0
  3. In deployment/values.yaml under deployment, add

      enabled: true
      enabled: true

NOTE indentation is important in yaml files. readiness og liveness must be on the level below deployment, and at the same level av volumeMounts og volumes.

4.27.0 (23.02.2022) - Secure options endpoint

Add support for secure options endpoints Fixed url and parameter separator logic in GetInstanceEvents Change redirect url from string to base64 encoded string

4.26.0 (2022-02-10) - Improvements to text resource in relation to PDF

Use new appName text resource as PDF title. Use local texts for pdf generation instead of text resources from Platform Storage.

4.25.0 (2022-01-24) - Dynamic application settings for front end

Added a new section called FrontEndSettings for use in appsetting.{environment}.json files. This is made available for front end as applicationSettings and is a dynamic list of values. It’s possible to add new entries to FrontEndSettings without the usual need to make code changes in backend. The feature ensures that backend can provide environment specific values to the front end application.

4.24.0 (2020-01-21)

Support language and query parameters in dynamic options. New way of implementing dynamic options by creating a class that implements IAppOptionsProvider. See doc

4.23.0 (2022-01-15) - Updated backend support for BPMN gateways

Restructure of process engine and support for BPMN gateways

4.22.0 (2022-01-07) - Included access token generation for eFormidling integration point

The integration point used for sending instance data through eFormidling now required a valid access token. Apps now fulfill all requirements of the integration point.

4.21.0 (2021-12-01) - Added support for saving username for instance owner

If a self identified user instantiates an instance, their username is saved in the instance owner metadata.

Added Api in App to expose XACML Policy and BPMN Process

4.20.0 (2021-11-18) - Added support for custom redirect URL when exiting an app

The URL to an app can now contain a query parameter (returnUrl) which, if validated (valid URI and host name), can be used to redirect the user to that URL when the user clicks on the exit icon in an Altinn 3 app. Read more about it here

Related to 7183

4.19.0 (2021-11-15) - Added support for instantiation based of a copy of an archived instance

The app template now supports the instantiation of an app based on a copy of an archived instance. The new endpoint is documented here. Note that support for copying an app in the message box and configuration of the application through Altinn Studio is still under development.

Related to 6695

4.18.0 (2021-11-10) - Added support for OIDC configuration

You can now configure a specific OIDC provider in app.

Related to 7173

4.17.2 (2021-10-27) - Added API for instantiation with key-value prefill

It is now possible to instantiate with keyValue prefill through a new instantiation API.

You can also use prefill in custom code. This will require that the app implements the latest version of App.cs which includes the following method

  public override async Task RunDataCreation(Instance instance, object data, Dictionary<string, string> prefill)
           await _instantiationHandler.DataCreation(instance, data, prefill);

And the latest InstansiationHandler.cs with the method signature

  public async Task DataCreation(Instance instance, object data, Dictionary<string, string> prefill)
            await Task.CompletedTask;

4.16.0 (2021-10-07) - Added API for tagging of data elements

It’s now possible to save tags on a data element. To support this there are 3 new API endpoints for listing existing tags, adding a tag, and to remove a tag from a data element.

This change is associated with issue 6861 on github.

There is more information about the new API under the app API documentation.

4.15.2 (2021-10-04) - New endpoint for retrieving active instances

Altinn Apps now expose a new endpoint for retriveing active instances for a given instance owner. The new endpoint can be reached at {org}{org}/{app}/instances/{instanceOwnerPartyId}/active.

The change is related to issue 6767.

4.14.1 (2021-09-22) - 500 error when retrieving non existing instance fixed

There was a bug causing a 500 response when an request is made towards Get/Instances for a non-existing instance. This has now been fixed and the response returned is 403. Swagger for the endpoint is updated to reflect possible response codes.

4.14.0 (2021-09-13) - Partial support for namespace XML

The code that deserializes XML has been updated to support namespace declaration in the root element.


<Skjema xmlns="urn:no:altinn:skjema:v1">

Deserialization occurs when an external system uses the app API to submit a new form, when they overwrite an existing form, and when an app retrieves a form from blob storage.

The change is not automatically used by all apps that update to this version. For the change to take properly effect the C# class that represents the model must be updated. The class needs to be decorated with an XmlRootAttribute with the Namespace property set to the correct namespace.


[XmlRoot(ElementName = "Skjema", Namespace = "urn:no:altinn:skjema:v1")]
public class Skjema {
    public string Navn { get; set; }

This change must be done manually for all old and new models. The model editor in has not be updated to do this automatically.

4.13.0 (2021-09-03) - Event for changed sub status on instance

Changing the sub status of an instance triggers an event app.instance.substatus.changed which can be subscribed to in the event component.

This solves issue #6691

4.12.0 (2021-08-27) - Identity data is included in the request telemetry for all requests

In Application Insights we now register the properties listed below enabling linking of an entity to a specific request received by the application.

  • partyId
  • authentication level
  • userId
  • organisationNumber

This solves issue #5983

4.11.1 (2021-08-26) - No longer possible to cache response from stateless apps

Caching of the stateless data responses is no longer possible.

This solves issue #6532

4.11.0 (2021-08-03) - Support for disabling reportee selection in Altinn Portal

Apps now support adding query parameter DontChooseReportee=true to disable the reportee selection when an unauthorized user accesses an app. The result being that the user will represent themselves and be routed directly to the application after login.

This release solves issue #6573.

4.10.2 (2021-07-15) - Text resources are loaded locally

  • The app will now load texts from the locally stored text resource files (config/texts/*) instead of retrieving them from Storage. Texts are still uploaded to Storage during deploy. The change is to remove unnecessary calls to Storage and to avoid an issue with caching that prevented new texts from being used immediately. #6466, #6415
  • Fixed a bug where a filename with space in it could lead to a crash. #6421
  • New apps created after the v2021.29 release will provide security headers like X-Frame-Options, X-XSS-Protection, X-Content-Type-Options, and Referer-Policy. To activate this in existing apps follow these steps:
    • Open the App/Startup.cs file.
    • At the top of the file add the namespace reference: using Altinn.App.Api.Middleware;
    • Find the Configure method and add the statement: app.UseDefaultSecurityHeaders(); Add it right before existing app.Use* statements. E.g. before app.UseRouting();

4.9.2 (2021-07-08) - Fixed messages from multipart request validation

Validation messages from multipart request validation was misleading. This release solved issue #6418.

4.9.1 (2021-07-02) - Bugfix for errors in multipart validation

Fixed a bug that caused validation messages to show C# type of DataType rather than DataTypeId. Issue #6418

4.9.0 (2021-06-29) - Support for marking a single field validation error as fixed

It is now possible to mark a previous validation error as fixed by using the prefix *FIXED* in front of the original error. Documentation on how to implement the functionality.

4.8.0 (2021-06-22) - Application version number available in AppSettings

During app deployment an environment variable with the app version number/name is added to the app runtime environment. This version information can now be retrieved in any controller or service through the AppSettings configuration object. Just add a dependency on AppSettings into the class and access the new property called AppVersion.

4.7.1 (2021-06-15) - Adjustments to response headers

Some of the controllers exposed by the applications have been modified to not allow caching and/or storage of their responces in the client.

4.7.0 (2021-06-08)

Altinn Apps now authorize access for statless apps.

Altinn Apps now have two new application events where application developers can add data processing logic. calculation, population, and more.

In this update the RunCalculate application event is made obsolete/deprecated. It’s recommended that Apps are updated to use RunProcessDataWrite and RunProcessDataRead instead. Calls to the RunCalculate method will be removed in a future update.

The process to update is

  1. Add the DataProcessing folder and DataProcessingHandler class from our app template to your app.
  2. Update App.cs. Add a class field for DataProcessingHandler and copy new methods ( RunProcessDataRead and RunProcessDataWrite) from App.cs
  3. Move logic from calculation handler to DataProcessinghandler
  4. Remove RunCalculation method from App.cs
  5. Remove CalculationHandler when code has been moved to DataProcessingHandler.
  6. Compile and test your app.

See details about data processing here

4.6.2 (2021-06-01) - Duplicate keys in options causing crash

This release has a fix for a crash related to PDF rendering when an app have options with duplicate entries. #5887

4.6.1. (2021-05-21) Changed alternative subject

Altinn Apps now uses org instead of organization as subject when publishing events.

4.6.0 (2021-05-11) - Apps now support data fields

Altinn Apps now support data fields. Data fields allows for adding data values, from either form fields or a custom source, to the instance object. Form data can be added by configuring data fields in applicationmetadata.json while custom sources require coding. Documentation on how to add data values to an instance can be found here.

4.5.2 (2021-05-04) - Endpoints for stateless data elements exposed through app. Bug stopping local testing fixed

Altinn Apps now expose endpoints for creating, prefilling and running calculations on stateless data elements. A stateless data element entails there is no link to an instance or instance owner, and the data is simply presented to the end user, but not persisted in any database.

In addition, a bug breaking apps running with local test introduced in 4.4.1 has been fixed.

Information on the new endpoints can be found in the swagger exposed by each application https: //{org}{org}{app}/swagger

4.4.1 (2021-04-30) - Ask user to upgrade security level

An app would show the “unknown error” message if a user were trying to access an instance with a security level that was too low for the instance. This has been fixed. The user is now sent to authentication with the option to pick an authentication method that provides a higher security level. The fix targets the GET instance endpoint specifically.

4.4.0(2021-04-27) - Performance fix

Improved performance.

4.3.0 (2021-04-28) - Apps now support presentation fields

Altinn Apps now support presentation fields. By specifying presentation fields in applicationmetadata.json, specified data values from the form data will be stored on the instance in order to show them along with the app title in the Altinn messagebox. Further documentation on how to configure presentation fields is found here.

This change is related to this epic.

4.2.0 (2021-04-19) - Possible to integrate an app with eFormidling

Altinn Apps now support integration with eFormidling. Documentation on how to set up an application to use eFormidling will be published once an integration point for eFormidling is set up in Altinn Platform.

4.1.0 (2021-04-07) - Add new property with updated data to response for PUT to DataController

During PUT of data to DataController ({org}/{app}/instances/{instanceOwnerPartyId:int}/{instanceGuid:guid}/data), any calculations that are defined by the apps are run, and data is potentially updated before being saved. Previously, the response returned only the metadata for the updated data element, and a GET to fetch the updated data was necessary. In this version, a dictionary of all the fields that have updated data from calculations is returned as a new parameter in the API response (in addition to the data element metadata), so that clients do not need to perform the additional GET request in order to get the updated data.

This change is related to this issue.

4.0.3 (2021-03-23) - Fixed a bug reading filename from Content-Disposition

  • The specification for Content-Disposition specify that filename should be in quotes. This was not supported by the app backend API, causing requests following the specification to fail. This has been fixed.
  • Added support for filename* (FilenameStar). If Content-Disposition contain both filename and filename*, the value defined by filename* will be used.

4.0.1 (2021-03-15) - Upgraded application to .Net 5 and grouped references of Altinn App and Altinn Platform services in Startup.cs

Altinn.App.* libraries target .Net 5 now, which requires that the application does the same. In addition we have created two methods for referencing all app and platform services in Startup.cs

See breaking changes for how to update you app to be compatible with this version.