Altinn.App.Core 8.9.0

There is a newer version of this package available.
See the version list below for details.
dotnet add package Altinn.App.Core --version 8.9.0
                    
NuGet\Install-Package Altinn.App.Core -Version 8.9.0
                    
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Altinn.App.Core" Version="8.9.0" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Altinn.App.Core" Version="8.9.0" />
                    
Directory.Packages.props
<PackageReference Include="Altinn.App.Core" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add Altinn.App.Core --version 8.9.0
                    
#r "nuget: Altinn.App.Core, 8.9.0"
                    
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#:package Altinn.App.Core@8.9.0
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=Altinn.App.Core&version=8.9.0
                    
Install as a Cake Addin
#tool nuget:?package=Altinn.App.Core&version=8.9.0
                    
Install as a Cake Tool

GitHub Workflow Status GitHub<br/>

NuGet / Altinn.App.Core NuGet / Altinn.App.Api

Altinn.App .NET libraries

Altinn.App .NET libraries for apps running on Altinn 3, part of the Altinn Studio product.

These libraries support the runtime of Altinn apps by

  • Exposing APIs used by service owners and the frontend (app-frontend-react) of an Altinn app
  • Exposing abstractions to interact with features of Altinn Studio and Altinn 3 Platform services

Contributing

See /CONTRIBUTING.md.

Documentation

Documentation on how to develop Altinn apps can be found here.

Architecture

This template is built using .NET

The below diagram shows the different layers.

Template

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (13)

Showing the top 5 NuGet packages that depend on Altinn.App.Core:

Package Downloads
Altinn.App.Api

This class library holds all the API controllers used by a standard Altinn 3 App.

Altinn.Codelists

This class library holds extra codelists for Altinn Studio apps.

PsA3Forms

Package Description

Ft.Datafangst.Utils

Package Description

mattilsynet.foniks.altinn.common

Felles funksjonalitet for altinnskjemaer

GitHub repositories (1)

Showing the top 1 popular GitHub repositories that depend on Altinn.App.Core:

Repository Stars
Altinn/altinn-studio
Next generation open source Altinn platform and applications.
Version Downloads Last Updated
8.11.0-preview.1 64 2/25/2026
8.10.5 197 3/13/2026
8.10.4 92 3/13/2026
8.10.3 687 3/5/2026
8.10.2 452 2/25/2026
8.10.1 514 2/23/2026
8.10.0 816 2/16/2026
8.10.0-preview.3 61 1/30/2026
8.10.0-preview.2 51 1/23/2026
8.10.0-preview.1 65 1/22/2026
8.9.2 2,230 1/8/2026
8.9.1 184 1/8/2026
8.9.0 900 1/6/2026
8.9.0-preview.5 155 12/22/2025
8.9.0-preview.4 952 12/2/2025
8.9.0-preview.3 358 11/21/2025
8.9.0-preview.2 753 11/7/2025
8.9.0-preview.1 148 10/31/2025
8.8.3 3,152 10/24/2025
8.8.2 1,058 10/14/2025
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Release notes look best on GitHub: https://github.com/Altinn/app-lib-dotnet/releases/tag/v8.9.0
<!-- Release notes generated using configuration in .github/release.yml at main -->
## What's Changed
### New Features 🎉
* Authorize app specific API scopes by @martinothamar in https://github.com/Altinn/app-lib-dotnet/pull/1357 - [docs](https://docs.altinn.studio/nb/altinn-studio/v8/reference/configuration/authorization/api-scopes/)
* Support working with clean data in dataProcessors and validators and removeWhenHidden by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1421
* Make required messages from backend layouts configurable by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1488
* Order signing data elements by @vxkc in https://github.com/Altinn/app-lib-dotnet/pull/1511
* Validate signature hashes by @bjorntore in https://github.com/Altinn/app-lib-dotnet/pull/1474
* Translation service improvements by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1530
* Service task by @bjorntore in https://github.com/Altinn/app-lib-dotnet/pull/745
* Add /validate endpoint to custom swagger by @olavsorl in https://github.com/Altinn/app-lib-dotnet/pull/1541
* Make it possible to use Json as storage format by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1526
* Adding support for Likert component in  by @olemartinorg in https://github.com/Altinn/app-lib-dotnet/pull/1545
* Fiks Arkiv integration by @danielskovli in https://github.com/Altinn/app-lib-dotnet/pull/1189 - docs coming soon
* Support options with group binding by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1576
* Implement IAppOptionsProvider for code lists from org library by @olavsorl in https://github.com/Altinn/app-lib-dotnet/pull/1572
* Add Unknown  type, to support custom APIs with custom auth  by @martinothamar in https://github.com/Altinn/app-lib-dotnet/pull/1588
* Subform PDF service task by @bjorntore in https://github.com/Altinn/app-lib-dotnet/pull/1512
### Bugfixes 🐛
* Make [component] lookups work in expression validation by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1497
* Ensure DataValues and PresentationValues gets updated at every opportunity  by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1496
* Return http status 400 on request deserialization failiures by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1505
* Fix gateway expression evaluation crash with invalid data element identifiers by @olemartinorg in https://github.com/Altinn/app-lib-dotnet/pull/1539
* Fix use of checked AltinnPartyClient in PrefillSI by @martinothamar in https://github.com/Altinn/app-lib-dotnet/pull/1517
* Fix source generator to behave better with List<string> and List<int?> by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1542
* Delay throwing exceptions for invalid expressions untill thy actually gets evalutated. by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1555
* Handle the nullable hack we use for [XmlText] fields by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1566
* Deny writes to ref-data-as-pdf through API. Considered to be the apps… by @bjorntore in https://github.com/Altinn/app-lib-dotnet/pull/1601
* Let the Roslyn Analyzer avoid doing app-related analysis transitively in unrelated projects by @martinothamar in https://github.com/Altinn/app-lib-dotnet/pull/1606
### Other Changes
* Add .x3d support to MimeTypeMap by @csvenke in https://github.com/Altinn/app-lib-dotnet/pull/1482
* Set correct media type on customOpenapi.json by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1516
* Mark obsolete endpoint (since 8.0) as obsolete by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1513
* Gracefully shutdown app by @martinothamar in https://github.com/Altinn/app-lib-dotnet/pull/1543
* Improve Layout component hierarchy by @ivarne in https://github.com/Altinn/app-lib-dotnet/pull/1574
* Adds MIME type for .ifc files by @MLapinskas in https://github.com/Altinn/app-lib-dotnet/pull/1581
## New Contributors
* @csvenke made their first contribution in https://github.com/Altinn/app-lib-dotnet/pull/1482
* @vxkc made their first contribution in https://github.com/Altinn/app-lib-dotnet/pull/1511
* @MLapinskas made their first contribution in https://github.com/Altinn/app-lib-dotnet/pull/1581
* @Konrad-Simso made their first contribution in https://github.com/Altinn/app-lib-dotnet/pull/1595
**Full Changelog**: https://github.com/Altinn/app-lib-dotnet/compare/v8.8.3...v8.9.0