Saturday, May 13, 2017

Migrating from ASP.NET Core 1.0 to 2.0: Tips and Best Practices

In the realm of web development, staying current with the latest technologies and frameworks is crucial to delivering modern and performant applications. With the release of ASP.NET Core 2.0, developers are presented with a host of new features and improvements that can enhance the functionality and efficiency of their applications. If you've been working with ASP.NET Core 1.0, migrating to the latest version might seem like a daunting task, but fear not. In this article, we'll explore essential tips and best practices to ensure a smooth transition from ASP.NET Core 1.0 to 2.0.

1. Understand the Changes

Before embarking on a migration, take the time to understand the key changes introduced in ASP.NET Core 2.0. Familiarize yourself with new features, improvements, and any breaking changes that might impact your existing codebase. The official documentation and release notes are invaluable resources for gaining this insight.

2. Update Dependencies and NuGet Packages

With a new version comes updates to various dependencies and NuGet packages. Review the dependencies your project relies on and update them to their compatible versions for ASP.NET Core 2.0. This includes third-party libraries, utilities, and any custom packages you might be using.

3. Address API Changes

ASP.NET Core 2.0 might introduce changes to APIs that you were using in your ASP.NET Core 1.0 project. Be prepared to update your code to align with the new APIs and conventions. Take advantage of tools like the Visual Studio's IntelliSense and error messages to identify areas that need modification.

4. Test Thoroughly

Migrating to a new version can introduce unexpected behaviors or issues. Rigorous testing is your best defense against regressions. Perform comprehensive unit, integration, and end-to-end testing to ensure that your application functions as expected after the migration.

5. Backup Your Code

Before diving into the migration process, create a backup of your ASP.NET Core 1.0 project. This ensures that you have a safe point to revert to in case the migration encounters unforeseen difficulties.

6. Leverage Migration Tools

Depending on the complexity of your project, migration tools might assist in automating parts of the migration process. Tools like the .NET Portability Analyzer can help identify code that might need adjustments to be compatible with ASP.NET Core 2.0.

7. Documentation and Community

Rely on the ASP.NET Core community and official documentation for guidance. The community often shares insights, best practices, and solutions to common migration challenges. Forums, GitHub repositories, and developer blogs can provide valuable tips from those who've already undergone the migration process.


Migrating from ASP.NET Core 1.0 to 2.0 is a significant step towards keeping your application up-to-date and benefiting from the latest features and improvements. By understanding the changes, updating dependencies, addressing API modifications, thorough testing, and leveraging available resources, you can ensure a successful migration that results in a more modern, efficient, and robust application built on the foundation of ASP.NET Core 2.0.

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