ASP.NET Core OData preview version 8.0.0 is released by Microsoft's open-source OData on nuget.org. It is the first version of OData support for .NET 5 especially for ASP.NET Core 5. This release contains some important breaking changes such as model builder separation, namespace changes, and configuration changes, etc. The routing mechanism is also changed a lot when compared to the older version 7.x.
OData (Open Data Protocol) is used for creating and consuming queryable and interoperable REST APIs in a simple and standard way, OData was initiated by Microsoft in 2007.