What's coming in .NET 8 & C# 12

on YouTube ↗01h 01m

" summary

.NET 8 ships as an LTS release in November and focuses on speed and cross‑platform support: heavy use of spans/ranges and UTF‑8 string literals, Native AOT ahead‑of‑time compilation with source‑generated JSON serializers, frozen collections, System.Text.Json streaming and polymorphic deserialization (read‑only population bug noted and slated for .NET 9), HTTP/3 and many ASP.NET Core improvements like anti‑forgery in minimal APIs, keyed services, short‑circuit endpoints and built‑in rate limiting; C# 12 adds collection expressions with a spread operator, class primary constructors and compile‑time interceptors for source‑generated method replacement.

AI-written summary · about

" chapters (15)

1. 0:00Welcome to .NET 8 & C# 12
2. 3:30What's new in .NET 8
3. 6:20Performance improvements
4. 13:05System.Text.Json & UTF-8 strings
5. 17:18JSON serialization & polymorphism
6. 24:42Time abstractions for testing
7. 29:19Random & crypto improvements
8. 30:23ASP.NET Core 8 features
9. 42:03Blazor & .NET MAUI updates
10. 46:39C# 12 features overview
11. 50:09Collection expressions in C# 12
12. 51:12Primary constructors in C# 12
13. 53:39Interceptors in C# 12
14. 57:50Optional parameters in lambdas and type aliases
15. 59:54Summary & Q&A

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