A feature in ASP.NET Core named User Secrets allows you to store user secrets outside your project tree in a JSON file, and can even be managed using a command-line tool called the Secrets Manager.

FusionCache is an open-source, easy-to-use implementation of hybrid in-memory and distributed caching that brings additional features and resiliency to caching in ASP.NET Core.

Microsoft this week shipped the fourth preview of .NET 10 without groundbreaking features but with much work devoted to ASP.NET Core & Blazor, where several work items were devoted to OpenAPI.