public class User
{
    public string Name { get; }
    public int Age { get; }

    public User(string name, int age)
    {
        Name = name;
        Age = age;
    }
}

public class User(string name, int age)
{
    public string Name => name;
    public int Age => age;
}

 

Why This Matters

• Less boilerplate code

• Easier to read and maintain

• Perfect for clean architecture and DDD models

---

 

ALT: Comparison of old C# class constructor vs C# 14 primary constructor

 

---

🔹 Object Freezing (Runtime Immutability)

.NET 10 introduces object freezing, allowing objects to become immutable at runtime.

appConfig.Freeze();

 

Once frozen:

• ❌ Properties cannot be modified

• ✅ Thread-safe by design

• ✅ Ideal for configuration and cached data

This significantly reduces bugs in multi-threaded and high-concurrency applications.

---

⚙️ .NET 10 Runtime – Faster Without Code Changes

One of the biggest strengths of .NET 10 is performance improvement with zero code changes.

---

🔹 JIT Compiler Improvements

The JIT compiler now:

• Produces more optimized machine code

• Improves loop handling

• Optimizes interface and array access

• Reduces unnecessary allocations

This directly improves:

• API throughput

• Background job processing

• High-traffic web applications

---

🔹 Smarter Memory Management

.NET 10 introduces:

• Automatic eviction of unused memory pools

• Reduced garbage collection pressure

• Better handling of long-running services

This is especially beneficial for:

• Microservices

• Containers

• Cloud-hosted APIs

---

 

ALT: Performance benchmark comparing .NET 9 and .NET 10 execution speed

 

---

🌐 ASP.NET Core 10 – Cleaner APIs & Better Web Development

ASP.NET Core 10 continues the trend of minimal, fast, and developer-friendly APIs.

---

🔹 Minimal APIs with Built-in Validation

Validation is now integrated directly into Minimal APIs.

app.MapPost("/users", (CreateUserRequest request) =>
{
    return Results.Ok();
})
.AddValidation();

 

Benefits

• No controllers required

• No manual validation code

• Cleaner and more readable APIs

Perfect for microservices and lightweight APIs.

---

 

ALT: ASP.NET Core 10 minimal API example in Visual Studio Code

 

---

🔹 Improved OpenAPI & Swagger

ASP.NET Core 10 adds:

• Native OpenAPI 3.1 support

• Better Swagger UI rendering

• Cleaner API contracts

• Easier client generation

---

🌈 Blazor Improvements in .NET 10

Blazor continues to mature and becomes more production-ready.

What’s Improved?

• Faster page loading

• Better reconnection handling

• Improved JavaScript interoperability

• Smarter static asset compression

Blazor apps now feel closer to modern SPAs in terms of performance.

---

 

ALT: Blazor web application architecture in .NET 10 showing client and server interaction

 

---

📦 .NET 10 SDK – Simpler Developer Experience

---

🔹 File-Based Apps (No Project File Needed)

You can now run C# directly from a single file:

dotnet run hello.cs

 

This is great for:

• Small tools

• Automation scripts

• Learning and experimentation

---

🔹 Native AOT by Default

File-based apps now compile using Native AOT:

• Smaller executables

• Faster startup

• No runtime dependency

---

 

ALT: Comparison of script mode and Native AOT compilation in .NET 10

 

---

🗄️ EF Core 10 – Faster and More Efficient Data Access

Entity Framework Core 10 focuses heavily on performance and scalability.

Improvements Include:

• Optimized query pipelines

• Faster data materialization

• Reduced memory overhead

These improvements make EF Core more suitable for high-scale enterprise applications.

---

 

ALT: EF Core 10 performance improvements in .NET 10

 

---

🔐 Security & Authentication Improvements

.NET 10 improves security by default.

Key Enhancements

• Passkey-based authentication

• Improved token handling

• Safer default configurations

These changes make modern authentication easier and more secure.

---

 

ALT: Security and authentication improvements in .NET 10

 

---

🔄 Should You Upgrade to .NET 10?

Upgrade If:

• You’re using .NET 6 or .NET 8

• You want LTS stability

• Performance and scalability matter

Before Upgrading:

• Check NuGet compatibility

• Review breaking changes

• Test critical workloads

---

🏁 Final Thoughts

.NET 10 is not just another version — it’s a polished, performance-focused, and future-ready platform.

Key Takeaways

• ✔ Faster runtime

• ✔ Cleaner C# with C# 14

• ✔ Better APIs with ASP.NET Core 10

• ✔ Improved EF Core performance

• ✔ Stronger security by default

If you’re starting a new project or planning long-term support, .NET 10 is the right choice.