Blog

Mert Özen's blog posts on software development, backend, frontend, and DevOps.

Series

.NET Core Web API 36 C# Fundamentals 20 Object-Oriented Programming in C# 16 C# Collections and Generics 11 LINQ 17 Asynchronous Programming in C# 17 Advanced C# 14 C# Versions 6

2 posts found #csharp-12

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Backend PART 03

What's New in C# 12: Primary Constructors and Collection Expressions

C# 12 next to its C# 10 equivalents: why a primary constructor is a parameter rather than a property and the CS9124 warning, square-bracket collection expressions and spread, default lambda parameters, alias any type, inline arrays, the Experimental attribute and a note on interceptors.

7 Nov 2026 8 min 7

Backend PART 10

C# 11–12 and .NET 7–8: Generic Math, Frozen and Collection Expressions

The generic sum you couldn't write in C# 10, generic math with static abstract members and INumber<T>; FrozenDictionary and FrozenSet, built once and read many times, measured with BenchmarkDotNet; square-bracket collection expressions, spread and CollectionBuilder.

7 Nov 2026 12 min 5