.NET news, Monday, November 2, 2026

.NET 10

Keyless AI chat

DVDEV Community: #dotnet Henrique Mauri 1 d ago

A secure enterprise chat with React, .NET 10 and Microsoft Foundry

The article targets the common mistake of calling the model straight from the front end with the API key in JavaScript, and instead wires React to a .NET 10 Minimal API that talks to Microsoft Foundry without any keys. It walks through Entra ID authentication, a server-owned system prompt, Server-Sent Events streaming and IP-based rate limiting as the protections that separate a demo from a product.

ai aspnetcore azure 11 min

C# 14

Silent shadowing

DVDEV Community: #csharp Adrián Bailador 1 d ago

C# 14 extension members: the shadowing bug the compiler won't warn you about

C# 14's extension member syntax now covers properties and static members, not just methods, yet a type's own member still silently wins over an identically named extension member. The author reproduces this against the .NET 10 SDK with eight tests: the build reports zero warnings and zero errors while every call site quietly switches to new logic.

architecture csharp dotnet 10 min

.NET 10 • security

AUTHN vs AUTHZ

DVDEV Community: #aspnetcore Chethan Ramaswamy 1 d ago

ASP.NET Core Authentication & Authorization Explained: What to Use, When, and How to Ship It Safely

A long, practical walkthrough of ASP.NET Core authentication and authorization on .NET 10: which mechanism fits which caller, where teams leave holes such as missing resource-level checks, and what to verify before going to production.

aspnetcore identity jwt 30 min

AI

OBOttorino Bruni Ottorino Bruni 1 d ago

From Local RAG to an AI Agent in C# with Ollama and Qdrant – Part 3

The third part of the series moves a local C# agent from free-form tool calling to deterministic Agent Workflows in Microsoft Agent Framework. A workflow collects deployment status, errors and Qdrant documentation in a fixed order, then hands the evidence to a tool-less agent for analysis, with a human approval gate before sensitive actions.

ai architecture tooling 22 min

Other

DVDEV Community: #aspnetcore Amitesh0512 1 d ago

Mastering Rate Limiting and Resource Governance for MCP Servers at Scale

A production write-up on rate limiting and resource governance for MCP orchestration servers, where a single tenant's burst can exhaust shared LLM token quota and starve everyone else. It compares the common limiter algorithms and lands on per-tenant token buckets with Redis-backed state and quota-aware refill rates.

aspnetcore cloud performance 10 min

Monday, November 2, 2026
stories of the day

A secure enterprise chat with React, .NET 10 and Microsoft Foundry

C# 14 extension members: the shadowing bug the compiler won't warn you about

ASP.NET Core Authentication & Authorization Explained: What to Use, When, and How to Ship It Safely

From Local RAG to an AI Agent in C# with Ollama and Qdrant – Part 3

Mastering Rate Limiting and Resource Governance for MCP Servers at Scale

Feedback

Monday, November 2, 2026stories of the day

A secure enterprise chat with React, .NET 10 and Microsoft Foundry

C# 14 extension members: the shadowing bug the compiler won't warn you about

ASP.NET Core Authentication & Authorization Explained: What to Use, When, and How to Ship It Safely

From Local RAG to an AI Agent in C# with Ollama and Qdrant – Part 3

Mastering Rate Limiting and Resource Governance for MCP Servers at Scale

Monday, November 2, 2026
stories of the day