This issue includes bits of life stories, concurrency, C/С++, security, AI, development tools, relational databases, SQL, XML, XPath, C#, fruit fly, Windows and of course .NET and .NET Internals.

In this post I describe how to perform method-substitutions with the NativeAOT linker to remove additional dependencies that the linker couldn't see were unused

After all, if they’re marked as unsafe, there’s gotta be a reason, right?

GitHub Copilot exposes two very different hook surfaces: a rich Copilot CLI stream with weak identity and derived turns, and a thin VS Code agent-hooks Preview with exact tool and agent IDs.

In this post I look at the new experimental support for DBSC provided by the Microsoft.AspNetCore.Authentication.DeviceBoundSessions package

In this post I provide an introduction to Device Bound Session Credentials, I look at how DBSC protects against session hijacking, and how the protocol works

This issue includes bits of life story, AI, C#, security, performance, Aspire, TDD, .NET and of course .NET Internals.

In this post I discuss the System.Text.Json support for unions and closed hierarchies coming in .NET 11, the decisions made, and some of the sharp edges I hit

Multiple line secrets or configuration do not work in Aspire per default. An example of this is using a PEM file for certificates. This posts shows how the multiple line configuration parameters ca…

In this post I describe the Fetch Metadata HTTP headers like Sec-Fetch-Site and Sec-Fetch-Mode which give information to a server about the context of a request

This issue includes bits of AI, Security, MS SQL, Performance, C#, HTTP and of course .NET and .NET Internals.

In this post I describe the new Cross-Site Request Forgery protection added to ASP.NET Core that uses Fetch Metadata HTTP headers instead of antiforgery tokens

In this post I describe the Fetch Metadata HTTP headers like Sec-Fetch-Site and Sec-Fetch-Mode which give information to a server about the context of a request

Using NativeAOT to write a .NET GC in C#. In this part, we add support for finalization.

This issue includes bits of AI, software development, C++, C#, diagnostics, architecture and of course .NET and .NET Internals.

In this post I describe what a close closed hierarchy is, how to create one, and discuss why you might want to

Why .NET is replacing the DAC with the cDAC data contracts, how they work locally / over a process / from a dump, and how to map the GitHub .md contracts to C# - with a from-scratch !eeheap as a worki...

in this post I take a short look at the new MoveChunks API, explore how it works, what it's for, and how the new API provides opportunities for public APIs

This is a bit of rambling from me and what I believe is a good setup for developing software together with AI tools. I believe the AI tools are good, which will help good developers produce better …

This issue includes bits of AI (too much AI), C#, software development, architecture, Windows, security, NTFS and of course .NET and .NET Internals.

In this post I discuss the support for union types released in .NET 11, how they're implemented, the choices made, and how to create your own

This week, I was updating my Aspire applications after the latest release and I ran into a deployment bug for my test deployments. I could no longer deploy the database to Azure SQL. I got the foll…

In this post I discuss the new Web Worker template available in .NET 11 for running CPU intensive tasks without blocking the UI

This issue includes bits of computer science, AI (unfortunately a lot of AI), academic papers, software development, architecture, performance, scheduling, C#, C++, .NET and .NET Internals.

In this post I show some of the new features in Git 2.54 including simple rebases with git history, config-based hooks, and stats with git repo structure

In this post I describe how to remove static byte[] allocations, even on .NET Framework, by using Span<T>, look at the associated IL, and discuss the risks

For easier access, I’ve decided to move my blog to github pages at https://chrisnas.github.io/.

In this post I describe how to create custom templates for Docker Sandboxes, so that your sandboxes start with additional tools immediately available

In this post I show how to run AI coding agents safely while still using YOLO/dangerous mode using docker sandboxes and the sbx tool

This issue includes bits (or I would rather say bytes) of AI, bits of software development, operating systems, web, diagnostics, performance, C++, C#,  and of course .NET and .NET Internals.