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abp/docs/en/Blog-Posts/2023-08-15 v7_4_Preview/POST.md

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ABP.IO Platform 7.4 RC Has Been Released

Today, we are happy to release the ABP Framework and ABP Commercial version 7.4 RC (Release Candidate). This blog post introduces the new features and important changes in this new version.

Try this version and provide feedback for a more stable version of ABP v7.4! Thanks to all of you.

Get Started with the 7.4 RC

Follow the steps below to try version 7.4.0 RC today:

  1. Upgrade the ABP CLI to version 7.4.0-rc.1 using a command line terminal:
dotnet tool update Volo.Abp.Cli -g --version 7.4.0-rc.1

or install it if you haven't before:

dotnet tool install Volo.Abp.Cli -g --version 7.4.0-rc.1
  1. Create a new application with the --preview option:
abp new BookStore --preview

See the ABP CLI documentation for all the available options.

You can also use the Get Started page to generate a CLI command to create a new application.

You can use any IDE that supports .NET 7.x, like Visual Studio 2022.

Migration Guides

There are a few breaking changes in this version that may affect your application. Please see the following migration documents, if you are upgrading from v7.3:

What's New with ABP Framework 7.4?

In this section, I will introduce some major features released in this version. Here is a brief list of the titles that will be explained in the next sections:

  • Dynamic Setting Store
  • Introducing the AdditionalAssemblyAttribute
  • CorrelationId Support on Distributed Events
  • Dynamic Database Migrations
  • Other News

Dynamic Setting Store

Prior to this version, it was hard to define settings in different microservices and centrally manage all setting definitions in a single admin application. To make that possible, we were adding project references for all the microservices' service contract packages from a single microservice, so it can know all the setting definitions and manage them.

In this version, ABP Framework introduces the Dynamic Setting Store, which is an important feature that allows you to collect and get all setting definitions from a single point and overcome the setting management problems on microservices.

Note: If you are upgrading from an earlier version and using the Setting Management module, you need to create a new migration and apply it to your database because a new database table has been added for this feature.

Introducing the AdditionalAssemblyAttribute

In this version, we have introduced the AdditionalAssemblyAttribute to define additional assemblies to be part of a module. ABP Framework automatically registers all the services of your module to the Dependency Injection System. It finds the service types by scanning types in the assembly that defines your module class. Typically, every assembly contains a separate module class definition and modules are depend on each other using the DependsOn attribute.

In some rare cases, your module may consist of multiple assemblies, and only one of them define a module class, and you want to make the other assemblies parts of your module. This is especially useful, if you dont't want to depend on that module's dependencies.

In that case, you can use the AdditionalAssembly attribute as shown below:

[DependsOn(...)] // Your module dependencies as you normally would do
[AdditionalAssembly(typeof(IdentityServiceModule))] // A type in the target assembly (in another assembly)
public class IdentityServiceTestModule : AbpModule
{
    ...
}

With the AdditonalAssembly attribute definition, ABP loads the assembly containing the IdentityServiceModule class as a part of the blog module. Notice that, in this case, none of the module dependencies of the IdentityServiceModule are loaded. Because, we are not depending on the IdentityServiceModule, instead we are just adding its assembly as a part of the IdentityServiceTestModule.

You can check the Module Development Basics documentation to learn more.

CorrelationId Support on Distributed Events

In this version, CorrelationId (a unique key that is used in distributed applications to trace requests accross multiple services/operations) is being attached to the distributed events, so you can relate events with HTTP requests and can trace all the related activities.

ABP Framework generates a correlationId for the first time when an operation is started and then attachs the current correlationId to distributed events as an additional property. For example, if you are using the transactional outbox or inbox pattern provided by ABP Framework, you can see the correlationId in the extra properties of the IncomingEventInfo or OutgoingEventInfo classes with the standard X-Correlation-Id key.

You can check this issue for more information.

Dynamic Database Migrations

//TODO: ...

Other News

  • OpenIddict library has been upgraded to v4.7.0. See #17334 for more info.
  • ABP v7.4 introduces the Volo.Abp.Maui.Client package, which is used by the MAUI mobile application in ABP Commercial. See #17201 for more info.
  • In this version, the AbpAspNetCoreIntegratedTestBase class gets a generic type parameter, which expect either a startup class or an ABP module class. This allows us to use configurations from an ABP module or old-style ASP.NET Core Startup class in a test application class and this simplifies the test application project. See #17039 for more info.

What's New with ABP Commercial 7.4?

We've also worked on ABP Commercial to align the features and changes made in the ABP Framework. The following sections introduce new features coming with ABP Commercial 7.4.

//TODO:

Community News

Volosoft Will Attend to DevNot Developer Summit 2023

We are thrilled to announce that the co-founder of Volosoft and Lead Developer of the ABP Framework, Halil Ibrahim Kalkan will give a speech about "Building a Kubernetes Integrated Local Development Environment" in the DevNot's Developer Summit 2023 event on the 7th of October.

New ABP Community Posts

There are exciting articles contributed by the ABP community as always. I will highlight some of them here:

Thanks to the ABP Community for all the content they have published. You can also post your ABP-related (text or video) content to the ABP Community.

Conclusion

This version comes with some new features and a lot of enhancements to the existing features. You can see the Road Map documentation to learn about the release schedule and planned features for the next releases. Please try ABP v7.4 RC and provide feedback to help us release a more stable version.

Thanks for being a part of this community!