* Resource based authorization system ([#236](https://github.com/abpframework/abp/issues/236))
* API Versioning system: finalize & document ([#497](https://github.com/abpframework/abp/issues/497))
* Performance optimizations; Enabling .NET Trimming, using source generators and reducing reflection, etc.
* Improving the abp.io platform and work more on contents and documents
**Planned release date**: End of Quarter 4, 2021.
> Note: v5.0 features will be more clear in the next months. We will consider to add new features from the *Backlog Items*.
## Backlog Items
The *Next Versions* section above shows the main focus of the planned versions. However, in each release we add new features to the core framework and the [application modules](Modules/Index.md).
Here, a list of major items in the backlog we are considering to work on in the next versions.
* [#2882](https://github.com/abpframework/abp/issues/2882) / Providing a gRPC integration infrastructure (while it is [already possible](https://github.com/abpframework/abp-samples/tree/master/GrpcDemo) to create or consume gRPC endpoints for your application, we plan to create endpoints for the [standard application modules](https://docs.abp.io/en/abp/latest/Modules/Index))
* [#633](https://github.com/abpframework/abp/issues/633) / Realtime notification system
* [#236](https://github.com/abpframework/abp/issues/236) / Resource based authorization system
* [#336](https://github.com/abpframework/abp/issues/336) / Health Check abstraction
* [#336](https://github.com/abpframework/abp/issues/336) / Health Check abstractions
* [#2532](https://github.com/abpframework/abp/issues/2532), [#2564](https://github.com/abpframework/abp/issues/2465) / CosmosDB integration with EF Core and MongoDB API
* [#4223](https://github.com/abpframework/abp/issues/4223) / WebHook system
* [#162](https://github.com/abpframework/abp/issues/162) / Azure ElasticDB Integration for multitenancy