C# 14, JWT, and MCP apps
Issue #363 covers C# 14 lambda and extension-member changes, JWT architectures, MCP app building, S3 versioning, and performance fixes.
Jasen's top three picks
- 1 MCP Development with .NET, C#, Cloud Run, and Gemini CLI
medium.com
AI app builders get a practical MCP walkthrough with .NET and Gemini CLI.
- 2 Practical JWT Mastery in .NET
medium.com
JWT architecture is the security anchor here—useful if you’re tightening auth flows.
- 3 Understanding Interfaces in C#: Why Default Interface Implementations Exist Alongside Abstract Classes
c-sharpcorner.com
The C# 14 posts are handy if you want the latest language changes explained with performance in mind.
Editor's note
I pulled together a pretty mixed lineup this time: C# language updates, security, AI tooling, and a real production scaling story. The MCP piece stands out for connecting Gemini CLI to a .NET app, and the 50,000 inserts-per-minute post is the kind of battle report many teams can learn from.
Today's articles
MCP Development with .NET, C#, Cloud Run, and Gemini CLI
medium.com
Leveraging Gemini CLI and the underlying Gemini LLM to build Model Context Protocol (MCP) AI applications with C# deployed to Google Cloud…
Topics: Azure Minimal APIs OpenAI
Read articlePractical JWT Mastery in .NET
medium.com
Part 8 : Real Architectures
Topics: ASP.NET Core JWT Security
Read articleUnderstanding Interfaces in C#: Why Default Interface Implementations Exist Alongside Abstract Classes
c-sharpcorner.com
Explore C# interfaces, their importance, and the evolution to default implementations in C# 8. Learn how this feature solves backward compatibility issues and enables safer software evolution in enter...
Read articleType Conversion in C# [ENG]
medium.com
Type conversion is changing one data type into another so it can be used differently.
Read articleC# 14 Improved Lambda Expressions: Using ref, in, and out Parameters for High-Performance Code
c-sharpcorner.com
Explore C# 14's enhanced lambda expressions with 'ref', 'in', and 'out' parameters. Boost performance, readability, and code consistency for critical operations.
Topics: C# .NET 10 Performance
Read articleLet’s Set Up C# & Write Your First Code! (Part 2)
medium.com
Installing the tools and saying “Hello World” — step by step with pictures!
Read articleS3 Versioning in .NET - Protect Against Accidental Deletes and Recover Any File Version
codewithmukesh.com
Learn how to enable S3 versioning, list previous versions, restore deleted files, and permanently delete versions using .NET. Build a minimal API that gives you complete control over your S3 object hi...
Topics: Azure .NET Core Minimal APIs
Read articleManage auto-approved agent tools in VS Code 🛡️
youtube.com
How can I detect that the system is running low on memory? Or that my job is running low on memory?
Topics: GitHub Copilot Security Visual Studio Code
Read articleOur Database Was Drowning in 50,000 Insert Requests Per Minute — Here’s How We Fixed It
elanchezhiyan-p.medium.com
Last year, our e-commerce platform had a major crisis during Black Friday.
Topics: Azure Performance SQL Server
Read articleC# 14 Extension Members: Complete Guide to Properties, Operators, and Static Extensions
laurentkempe.com
Extension methods have been a core C# feature since version 3.0, enabling developers to add methods to types without modifying source code. With C# 14 and .NET 10, Microsoft introduces extension membe...
Topics: C# .NET 10 Performance
Read articleC# 14 in Action: High-Performance Lambda Expressions with Parameter Modifiers
c-sharpcorner.com
Explore C# 14's enhanced lambda expressions with parameter modifiers (ref, in, out) for high-performance code, clearer intent, and expressive APIs. Optimize your C#!
Topics: C# .NET 10 Performance
Read articleC# Major Scale On Piano: Easy Tutorial For Beginners | Music Simply Understood #music #C-sharpmajor [b76273]
news.google.com
C# Major Scale On Piano: Easy Tutorial For Beginners | Music Simply Understood #music #C-sharpmajor [b76273]
Topics: C#
Read articleTop 10 errors found in C# projects in 2025
unicorn-dev.medium.com
Throughout 2025, the PVS-Studio team has been actively checking open-source C# projects. Over the year, we discovered plenty of defects…
Topics: C# Performance Unit Testing
Read article