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

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.NET Core Web API 36 Angular 31 JavaScript Basics 19 JavaScript Intermediate 18 JavaScript Advanced 16 TypeScript Basics 14 TypeScript Intermediate 14 TypeScript Advanced 12

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Backend PART 36

What's New in .NET 10: AddValidation, OpenAPI 3.1 and Server-Sent Events in ASP.NET Core

.NET 10 LTS brings AddValidation to minimal APIs, OpenAPI 3.1 and YAML, TypedResults.ServerSentEvents, System.Text.Json-based JSON Patch, dotnet run app.cs, C# 14 and breaking changes such as cookie auth 401/403.

4 Nov 2026 9 min 2