Discover the key differences: .NET Core vs. .NET Framework in 2025. Learn which platform suits your modern app development needs from performance to cloud-native support.

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Modern .NET (formerly .NET Core) has evolved into the preferred choice for new development in 2025, offering cross-platform support, superior performance through tiered JIT and AOT compilation, cloud-native capabilities, and modular architecture via NuGet. While .NET Framework remains viable for legacy Windows applications with technologies like WPF, WinForms, and WCF, it receives only security updates and lacks modern deployment flexibility. Key differentiators include modern .NET's support for containers, microservices, HTTP/2, improved async programming, and active open-source development. Migration decisions should weigh business needs against long-term scalability and platform requirements.

.NET Core vs. .NET Framework: Key Differences and Best Use Cases

<p>there is no reason to use .NET Framework except when the cost of upgrading a legacy project is larger than maintaining it.
There is nothing .NET Framework does better than .NET (maybe windows integration but getting that back is a matter of adding a view nuget packages)</p>
