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

3 posts found #migration

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Backend PART 06

Upgrading C# and .NET: Moving an Old Project to .NET 10

Moving a .NET 6 project to .NET 10: the support calendar, how LangVersion relates to the TFM and the latest trap, pinning the SDK with global.json, reading the real CS8981 and CS9258 warnings, the silent behavior change of the field keyword and reading breaking-change pages; C# 15 gets its own post.

7 Nov 2026 10 min 17

Backend PART 32

Reading Old .NET Core 3.1 and .NET 5 Projects: Migrating from Startup.cs to .NET 6

We read the Startup.cs, Generic Host and UseRouting/UseEndpoints structure of the .NET Core 3.1 and .NET 5 era, then move the same ASP.NET Core API to .NET 6 step by step, including System.Text.Json differences.

4 Nov 2026 10 min 42

Backend PART 14

EF Core and SQLite in ASP.NET Core Web API: DbContext, the First Migration and CRUD

We add a data layer to an ASP.NET Core Web API with EF Core and SQLite: EF Core 6 and 10 package versions, AppDbContext, the connection string, why DbContext is scoped, the first migration, async CRUD and the SQL in the console.

4 Nov 2026 9 min 35