Latest Version of .net and whats new being added in it

⚙️ Major Updates in .NET 9 + C# 13

params for collections → works with List<T>, Span<T>, etc., not just arrays.
New lock type → improved performance and safer multithreading.
Partial properties & indexers → split property logic across partial classes.
ref struct can implement interfaces → better for high-performance, Span-based types.
Escape sequence \e → adds ESC character literal.
ref locals/unsafe in async/iterators → now allowed for advanced performance code.
Improved System.Text.Json → more flexible serialization and schema support.
JsonSerializerOptions.RespectNullableAnnotations =true → If a property is non-nullable, JSON must not contain null, otherwise it throws an error.

Faster runtime & GC → smarter memory management, Improved Throughput, Faster object allocation and cleanup and better CPU optimizations.
AI & Tensor support → new APIs (Tensor<T>, VectorPrimitives) for AI, ML, and numeric computing.
Cloud-native focus → better observability (OpenTelemetry), container performance, and logging.
ASP.NET Core → faster startup, slimmer builds, and improved minimal API patterns.
Tooling upgrades → better build performance, SDK workload management, and diagnostics.

🧠 C# 13: Smarter language features (productivity + performance) ⚙️ .NET 9: Faster, AI-ready, more cloud-optimized runtime

Would you like me to make a 1-line resume-ready summary (e.g., “Working on .NET 9 with C# 13 using advanced runtime and language features”)?