modern-csharp-coding-standards

To enforce modern C# coding standards, apply immutable patterns using records and value objects, implement explicit pattern matching guidelines, and enforce explicit API boundaries to ensure robust and testable code.

You should use Span<T> and Memory<T> for high-performance C# code to enable zero-allocation patterns and performance-conscious design across explicit API boundaries in libraries and services.

The best way to refactor existing codebases is to audit projects against modern standards and progressively migrate types to use records, value objects, and explicit pattern matching for improved safety.

Adopting immutable records improves API safety in C# libraries by standardizing domain modeling, enforcing explicit conversions, and driving consistent, maintainable API design across new and existing services.

Explicit conversions and pattern matching in modern C# API design enforce robust type safety and clear domain boundaries, ensuring your code remains testable, readable, and highly performant.

You can apply these C# coding standards to both new codebases and refactors in libraries and services to ensure consistent API design, immutability, and high performance across all projects.