⚡️ F# Weekly #29, 2025 and .NET 10 Preview 6 Highlights
This text covers updates shared in the 29th issue of F# Weekly in 2025. It also mentions the release of .NET 10 Preview 6.
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This text covers updates shared in the 29th issue of F# Weekly in 2025. It also mentions the release of .NET 10 Preview 6.
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Sergey Tihon's Blog
F# Weekly #29, 2025 – .NET 10 Preview 6
Welcome to F# Weekly, A roundup of F# content from this past week: News .NET 10 Preview 6 is now available! – .NET Blog Building Your First MCP Server with .NET and Publishing to NuGet –…
⚡️ Ways to Test Roslyn Source Generators
There are a few ways to check if a Roslyn Source Generator works. You can match the code it makes to expected results, or you can run the code it makes to see if it acts the right way.
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There are a few ways to check if a Roslyn Source Generator works. You can match the code it makes to expected results, or you can run the code it makes to see if it acts the right way.
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Meziantou's blog
How to Test Roslyn Source Generators
Learn how to effectively test Roslyn Source Generators by verifying generated code output and ensuring the generated code works as intended using practical examples.
⚡️ Song Recommendations Using C# Reactive Extensions
This article is part of a series about different ways to design with functional programming. It gives a C# example that uses Reactive Extensions, or ReactiveX, which is also known as Reactive Extensions for .NET.
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This article is part of a series about different ways to design with functional programming. It gives a C# example that uses Reactive Extensions, or ReactiveX, which is also known as Reactive Extensions for .NET.
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ploeh blog
Song recommendations with C# Reactive Extensions
Observables as small Recawr Sandwiches.
⚡️ Integration Testing for Go Apps with Testcontainers
Integration testing checks how Go apps work with real services. Using Testcontainers and containerized databases helps avoid the problem of setting up and managing test servers or missing issues by using fake dependencies.
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Integration testing checks how Go apps work with real services. Using Testcontainers and containerized databases helps avoid the problem of setting up and managing test servers or missing issues by using fake dependencies.
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Microsoft News
Integration testing for Go applications using Testcontainers and containerized databases
Explore the Azure Cosmos DB Go SDK for effective integration testing with real service dependencies using Testcontainers.
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⚡️ Setting Up Azure Developer CLI for Easy App Deployment
The post explains how to use Azure Developer CLI (azd) to set up a process where you build an app once and use it in many places. It covers steps like setting up needed resources for each environment, using the same app files, and moving code from development to production with automated steps.
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The post explains how to use Azure Developer CLI (azd) to set up a process where you build an app once and use it in many places. It covers steps like setting up needed resources for each environment, using the same app files, and moving code from development to production with automated steps.
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Microsoft News
Azure Developer CLI: From Dev to Prod with One Click
This post walks through how to implement a “build once, deploy everywhere” pattern using Azure Developer CLI (azd) that provisions environment-specific infrastructure and promotes applications from dev to prod with the same build artifacts. You’ll learn how…
⚡️ Ask Mode and Agent Mode in .NET GitHub Copilot Chat
GitHub Copilot Chat has two main ways to work: Ask Mode and Agent Mode. These modes can help you write code faster in .NET, depending on what you need.
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GitHub Copilot Chat has two main ways to work: Ask Mode and Agent Mode. These modes can help you write code faster in .NET, depending on what you need.
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Microsoft News
Ask Mode vs Agent Mode – Choosing the Right Copilot Experience for .NET
GitHub Copilot Chat offers two powerful modes, Ask Mode and Agent Mode, that can dramatically accelerate your development. Learn when to use each mode to get the most out of this tool.
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⚡️ AWS Releases Kiro, an AI IDE Based on VS Code
AWS has launched Kiro, an AI-powered IDE built on Visual Studio Code. Kiro adds to a list of VS Code forks focused on AI, and its release comes as Microsoft works to bring more AI features to the open-source parts of VS Code.
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AWS has launched Kiro, an AI-powered IDE built on Visual Studio Code. Kiro adds to a list of VS Code forks focused on AI, and its release comes as Microsoft works to bring more AI features to the open-source parts of VS Code.
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Visual Studio Magazine
Forked Again: AWS's Kiro Is Latest AI Assistant Based on VS Code -- Visual Studio Magazine
AWS has launched Kiro, a spec-driven, agentic AI IDE based on Visual Studio Code. It joins a growing lineup of VS Code forks built for AI-assisted development, and it arrives just as Microsoft pushes to make the open-source core of VS Code fully AI-native.
⚡️ .NET 10 Adds New Source Generator API
A new API called AddEmbeddedAttributeDefinition() has been added in .NET 10. This API lets users embed generated attributes more easily when using source generators.
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A new API called AddEmbeddedAttributeDefinition() has been added in .NET 10. This API lets users embed generated attributes more easily when using source generators.
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Andrew Lock | .NET Escapades
Solving the source generator 'marker attribute' problem in .NET 10
In this post I discuss a new source generator API, AddEmbeddedAttributeDefinition(), added in .NET 10, which makes it easier to embed generated attributes
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⚡️ New Pluralsight Learning Paths for Visual Studio Users
Pluralsight has added new courses and learning paths for people with Visual Studio subscriptions. These updates follow an earlier announcement about more access for users starting April 3rd.
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Pluralsight has added new courses and learning paths for people with Visual Studio subscriptions. These updates follow an earlier announcement about more access for users starting April 3rd.
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Microsoft News
Fresh Learning Paths Now Available on Pluralsight for VS Subscribers
Fresh learning paths and expert-led courses are now available on Pluralsight for Visual Studio Professional and Enterprise subscribers. Unlock new skills in VS Code, GitHub Copilot security, generative AI, Azure automation, and more—activate your extended…
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⚡️ MCP C# SDK Updated for New Protocol Support
The MCP C# SDK now works with the Model Context Protocol version 2025-06-18. This update adds structured tool output, elicitation support, better security, and other new features for .NET users.
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The MCP C# SDK now works with the Model Context Protocol version 2025-06-18. This update adds structured tool output, elicitation support, better security, and other new features for .NET users.
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Microsoft News
MCP C# SDK Gets Major Update: Support for Protocol Version 2025-06-18
The MCP C# SDK has been updated to support the latest Model Context Protocol specification (2025-06-18), bringing structured tool output, elicitation support, enhanced security, and more to .NET developers building AI applications.
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⚡️ Azure VM Availability Monitoring with Project Flash
Project Flash helps teams find problems with Azure Virtual Machines fast. It lets them see when there are issues coming from the Azure platform, so they can spot trouble early.
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Project Flash helps teams find problems with Azure Virtual Machines fast. It lets them see when there are issues coming from the Azure platform, so they can spot trouble early.
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Microsoft Azure Blog
Project Flash update: Advancing Azure Virtual Machine availability monitoring | Microsoft Azure Blog
Learn how Project Flash works to deliver precise telemetry, real-time alerts, and more with a user-friendly experience for virtual machines.
⚡️ Agent-to-Agent Communication on MCP
MCP has new features like resumable streams, elicitation, sampling, and notifications for progress and resources. These changes let people build systems where agents can talk to each other.
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MCP has new features like resumable streams, elicitation, sampling, and notifications for progress and resources. These changes let people build systems where agents can talk to each other.
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Microsoft News
Can You Build Agent2Agent Communication on MCP? Yes!
MCP has evolved significantly beyond its original goal of “providing context to LLMs.” With recent enhancements including resumable streams, elicitation, sampling, and notifications (progress and resources), MCP now provides a robust foundation for building…
⚡️ MSSQL Extension for VS Code Adds New Features in v1.34.0
The latest MSSQL Extension for VS Code update includes more GitHub Copilot Agent Mode features and adds color-coded connection signs. This version also improves local container use, updates the Schema Designer, and fixes some bugs.
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The latest MSSQL Extension for VS Code update includes more GitHub Copilot Agent Mode features and adds color-coded connection signs. This version also improves local container use, updates the Schema Designer, and fixes some bugs.
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Microsoft News
MSSQL Extension for VS Code: Agent Mode Updates, Colored Connections, and Schema Designer Enhancements
Discover what’s new in the MSSQL Extension for VS Code v1.34—including an upgraded GitHub Copilot Agent Mode, enhanced Schema Designer filters, color-coded connections, local container improvements, and multi-account Azure sign-in.
⚡️ VS Code Team Requests User Feedback
The VS Code Team asked users to share ways to make the editor better, including feedback about GitHub Copilot. Many developers replied to a social media post with their thoughts and ideas.
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The VS Code Team asked users to share ways to make the editor better, including feedback about GitHub Copilot. Many developers replied to a social media post with their thoughts and ideas.
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Visual Studio Magazine
VS Code Team Solicits Improvements: 'Done!' -- Visual Studio Magazine
Devs weren't shy about responding to a recent social media post from the VS Code Team's Burke Holland, who asked for feedback on the editor, including GitHub Copilot.
⚡️ ReSharper and .NET Tools 2025.2 Release Candidates Ready
The 2025.2 Release Candidates of ReSharper and .NET tools have been made available. This version brings a preview of ReSharper’s Out-of-Process mode, adds support for C# 14 and C++26 features, and includes updates to performance, refactorings, and inspections.
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The 2025.2 Release Candidates of ReSharper and .NET tools have been made available. This version brings a preview of ReSharper’s Out-of-Process mode, adds support for C# 14 and C++26 features, and includes updates to performance, refactorings, and inspections.
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⚡️ Rider and ReSharper 2025.2 Release Candidate Available
The new release candidate for Rider and ReSharper 2025.2 is ready to try. It includes the first look at ReSharper’s Out-of-Process mode, support for the newest C# 14 and C++26 features, and updates for speed, code changes, and code checks.
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The new release candidate for Rider and ReSharper 2025.2 is ready to try. It includes the first look at ReSharper’s Out-of-Process mode, support for the newest C# 14 and C++26 features, and updates for speed, code changes, and code checks.
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⚡️ From Manual Testing to Automated Testing with AI and Playwright
The team had a growing number of test cases that needed to be run by hand every time. This took a lot of time and slowed down other important work like finding new bugs.
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The team had a growing number of test cases that needed to be run by hand every time. This took a lot of time and slowed down other important work like finding new bugs.
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Microsoft News
From Manual Testing to AI-Generated Automation: Our Azure DevOps MCP + Playwright Success Story
In today’s fast-paced software development cycles, manual testing often becomes a significant bottleneck. Our team was facing a growing backlog of test cases that required repetitive manual execution—running the entire test suite every sprint. This consumed…
⚡️ Updates Coming to JetBrains .NET Tools
JetBrains is changing its .NET tools. Some features will be removed or updated, and other parts will be improved.
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JetBrains is changing its .NET tools. Some features will be removed or updated, and other parts will be improved.
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⚡️ TypeScript 5.9 RC Adds Deferred Imports and Node.js 20 Support
TypeScript 5.9 RC now supports import defer for loading modules later, stable Node.js 20 module targeting, and improved editor tooltips. This version also has faster compiler performance and some changes that may break older code.
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TypeScript 5.9 RC now supports import defer for loading modules later, stable Node.js 20 module targeting, and improved editor tooltips. This version also has faster compiler performance and some changes that may break older code.
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Visual Studio Magazine
TypeScript 5.9 RC Brings Deferred Imports, Node.js 20 Module Target -- Visual Studio Magazine
TypeScript 5.9 RC arrives with import defer for deferred module evaluation, stable Node.js 20 module targeting, and refined editor hover tooltips. It also brings compiler performance gains and notable breaking changes for developers -- GA within a week.
⚡️ F# Weekly
This is the 30th issue of F# Weekly for the year 2025.
It covers news or updates about Quipu and Perla.
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This is the 30th issue of F# Weekly for the year 2025.
It covers news or updates about Quipu and Perla.
♻️ Subscribe for free now!
Sergey Tihon's Blog
F# Weekly #30, 2025 – Quipu & Perla
Welcome to F# Weekly, A roundup of F# content from this past week: News Perla V1.0.0 betas are out! MCP C# SDK Gets Major Update: Support for Protocol Version 2025-06-18 – .NET Blog Ask Mode …
⚡️ Song Recommendations Using F# Agents
This article is part of a series about different ways to use functional programming. It explains how song recommendations can be made using F# agents, called MailboxProcessors, as small units called Recawr Sandwiches.
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This article is part of a series about different ways to use functional programming. It explains how song recommendations can be made using F# agents, called MailboxProcessors, as small units called Recawr Sandwiches.
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ploeh blog
Song recommendations with F# agents
MailboxProcessors as small Recawr Sandwiches.