Thursday, October 14, 2021

Exploring the New Features in ASP.NET Core 5.0: What's Changed?

The evolution of web development frameworks is a continuous journey, marked by innovations and enhancements that shape the way we build applications. With the release of ASP.NET Core 5.0, developers are treated to a host of new features and improvements that pave the way for more efficient, scalable, and modern web applications. In this article, we'll embark on a journey to explore the new features in ASP.NET Core 5.0 and uncover what has changed in this latest version.

1. Unified Platform: One ASP.NET

ASP.NET Core 5.0 introduces a unified platform, aptly named "One ASP.NET." This unified platform streamlines the development experience by providing a single model for building web apps and services. Whether you're creating Blazor WebAssembly apps, gRPC services, or SignalR hubs, the "One ASP.NET" philosophy ensures a consistent approach to development.

2. Blazor Enhancements: WebAssembly and Server-Side

Blazor, the framework for building web applications using C# and .NET, sees significant enhancements in ASP.NET Core 5.0. It's now offered in two flavors: Blazor WebAssembly and Blazor Server-Side. Blazor WebAssembly allows you to run C# code directly in the browser, enabling fully client-side applications. Blazor Server-Side enables real-time interactivity with minimal browser resources.

3. Minimal APIs: Simplified Development

ASP.NET Core 5.0 introduces the concept of Minimal APIs, aimed at simplifying the development process. With Minimal APIs, you can create compact APIs using a more concise syntax. This feature caters to developers who prefer a lightweight approach to building APIs without extensive configuration.

4. JSON Improvements: Performance and Flexibility

JSON serialization and deserialization receive performance enhancements in ASP.NET Core 5.0. These improvements lead to faster data processing and reduced memory usage, contributing to improved overall application performance. Additionally, JSON handling is now more flexible, enabling customization of JSON-related options.

5. Entity Framework Core 5.0: Performance and Features

Entity Framework Core 5.0, a popular Object-Relational Mapping (ORM) framework, arrives with performance improvements and additional features. Enhancements in query translation and optimizations lead to more efficient database interactions. New features, like many-to-many relationships without navigation properties, further enrich the ORM capabilities.

6. Versioning Improvements: API Consistency

ASP.NET Core 5.0 enhances versioning support for APIs. The new versioning capabilities provide better consistency and flexibility when evolving APIs over time. With clear versioning strategies, developers can create APIs that remain compatible with previous versions while introducing new features.

7. Improved Performance: Faster Requests

Performance is a constant focus in web development, and ASP.NET Core 5.0 continues to deliver improvements. Enhanced request processing and optimizations in the routing system lead to faster request handling and better throughput, ensuring snappy and responsive applications.


ASP.NET Core 5.0 represents a significant leap forward in web development, bringing forth a host of features and improvements that empower developers to build modern, efficient, and scalable applications. The "One ASP.NET" platform unifies development models, Blazor's enhancements open new avenues for web application architecture, Minimal APIs simplify coding, JSON improvements enhance performance, Entity Framework Core 5.0 offers better ORM capabilities, versioning improvements ensure API consistency, and overall performance enhancements deliver better response times. As you explore ASP.NET Core 5.0, you'll discover a wealth of tools that equip you to shape the future of web development with confidence.