185. Spotkanie WG .NET

## Details

Serdecznie zapraszamy na 185, noworoczne, spotkanie Warszawskiej Grupy .NET, które odbędzie się w murach Wydziału MiNI PW, w sali 103.

Z nowym rokiem (znowu!) zaczynamy od dwóch absolutnych petard, jakimi są prezentacje pracowników Microsoft, pracujących nad .NET 10!

Co mamy w planach:

## ➡ Prezentacja 1

👤 Prelegent: Adam Sitnik
📢 Temat: .NET libraries for building AI applications

Opis: In this session, we’ll walk through the rapidly growing ecosystem of .NET libraries designed for building modern AI applications. We’ll explore how tokenization works and why it matters, how embeddings turn text into meaningful numeric representations, and how .NET developers can generate, consume, and compare these embeddings using Microsoft.ML.Tokenizers, Microsoft.Extensions.AI, and System.Numerics.Tensors.

You’ll also learn how to store and search vector data with Microsoft.Extensions.VectorData, integrate LLM‑powered capabilities such as chat, function calling, and structured output, and build richer applications using agents, A2A communication, and the MCP protocol. Finally, we’ll take a look at how .NET supports full RAG pipelines through the new Microsoft.Extensions.DataIngestion library.
Whether you’re just getting started with AI in .NET or looking to go deeper into advanced scenarios, this talk will show you how the .NET platform makes building AI‑powered applications simpler, faster, and more productive.

Bio: Open Source contributor, BenchmarkDotNet, System.CommandLine and AspNetCore.Diagnostics.HealthChecks maintainer. My job on the .NET Team is to make the .NET the fastest developer platform on the planet.

## ➡ Prezentacja 2

👤 Prelegent: Shay Rojansky
📢 Temat: Translating LINQ to SQL: caching, nullability and other deep topics from EF's query pipeline

Opis: Have you ever asked yourself how Entity Framework Core does its magic, translating your LINQ queries all the way to SQL, and reading the results back as .NET objects? In this talk we'll dive deep into the EF pipeline, and discuss the challenges, the architecture and the solutions to some complex problems. We'll discuss performance, SQL optimization, code generation, LINQ expression trees, null semantics headaches, and various fascinating, low-level details that you've thought about when interacting with EF as a user.

Bio: Principal software engineer at Microsoft, working on .NET data access, Entity Framework and perf. Lead dev of Npgsql, the PostgreSQL provider.