⚡️ .NET 11: Runtime Async, Native AOT, and AI Application Development Tools

At the Microsoft Build 2026 conference, the company spoke in detail about the key innovations of .NET 11.

The update includes an accelerated SDK with support for Native AOT, new capabilities for working with AI agents, improvements to System.Text.Json, and built-in support for the JSON Lines format.

One of the main announcements was Runtime Async, a new asynchronous execution mechanism that improves performance, reduces the size of applications, and simplifies debugging.

Microsoft also unveiled an initiative to improve memory security and a number of runtime optimizations that should make .NET a more efficient platform for cloud-native and AI-centric applications.

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🎥 Build 2026: Microsoft introduced the largest Azure service pack

At Build 2026, Microsoft announced a massive set of updates to Azure, covering cloud infrastructure, data platforms, development tools, and AI services.

Key innovations include Cobalt 200 ARM virtual machines, Azure Linux 4, HorizonDB database, new Azure AI Foundry capabilities, and tools for building and managing AI agents.

The company also introduced new models of the MAI family and expanded the functionality of Azure Functions, Logic Apps, Cosmos DB, API Management, and Azure AI Search, strengthening the integration of generative AI into enterprise cloud services.

For more details, see the special issue on the results of Build 2026!

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⚡️ Microsoft Releases .NET 11 Preview 5

Microsoft has unveiled the fifth preview of the .NET 11 platform.

The release includes updates to the Runtime, SDK, ASP.NET Core, .NET MAUI, Entity Framework Core, and the C# language.

Among the key features are support for JSON Lines serialization in System.Text.Json, full outer join in LINQ, the X25519 key convention mechanism, union declarations in C#, and the MCP Server template in the dotnet new command.

Microsoft has also improved runtime performance, JIT compiler optimizations, and garbage collector performance.

Windows developers are encouraged to use Visual Studio 2026 Insiders to test the new version of the platform.

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⚡️ F# Weekly #24, 2026

The latest issue of F# Weekly brings together the key events of the F# ecosystem: Fable 5.2 and Expecto 11 have been released, and Microsoft has presented the fifth preview of .NET 11.

The digest also includes news about Rider 2026.2 EAP, Visual Studio Code 1.124, new tools for agent-based AI systems, as well as a selection of materials, videos, and open source projects, from the F# port of Matplotlib to solutions for LLM orchestration and quantum computing on Azure Quantum.

Among the releases of the week are updates to SQLProvider, Thoth.Json, Akka.FSharp, and other popular libraries.

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⚡️ 12 правил Dependency Injection для ASP.NET Core

The built-in Dependency Injection mechanism in ASP.NET Core helps you build scalable and testable applications, but misuse of the dependency container can lead to memory leaks, runtime errors, and complexity to the architecture.

The article discusses 12 key rules for working with DI, from choosing between Transient, Scoped, and Singleton to avoiding circular dependencies, abandoning Service Locator, and using the Options pattern for configuration management.

The material will be useful for both beginners and experienced. NET developers working on web applications, APIs, and microservices.

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⚡️ NBomber Studio 0.8.0

The developers of NBomber have released the NBomber Studio 0.8.0 update, the key innovation of which is the Load Test Schedules feature — it allows you to automatically run load tests on a schedule without manual intervention.

The platform has also expanded the ability to configure containers for Kubernetes by adding support for volumeMounts, volumes, envFrom, and tolerations, making it easier to work with secrets and configurations. In addition, the release includes improvements to the authentication system, new tabs for test analysis, and a number of interface improvements.

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⚡️ Outbox Pattern in .NET: How to Guarantee Message Delivery Without Distributed Transactions

Here's a detailed guide to implementing Outbox in .NET 10 using EF Core, PostgreSQL, RabbitMQ, and MassTransit.

In this article, you'll learn how to avoid event loss in distributed systems by storing business data and messages in a single transaction, and then publishing asynchronously through a separate background process.

The article also discusses the issues of scaling, processing "poisonous" messages, and monitoring.

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⚡️ F# Weekly #26, 2026

A new issue of F# Weekly has been released. In the release: WebSharper 10.1 update, an article on compiling F# in Erlang using Fable REPL, as well as a new publication by Urs Enzler about consistency boundaries in Event Sourcing and other materials from the F# ecosystem.

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⚡️ Levi's migrated its global IT infrastructure to Azure

Levi Strauss & Co., which has created some of the world's most recognizable jeans, has completed the migration of its global IT infrastructure to Microsoft Azure, consolidating nine ERP systems into a single cloud platform.

According to the company, the migration made it possible to halve delays, increase the performance of disk subsystems by 60% and reduce the decommissioning time of its own data centers from nine to six months.

The created cloud infrastructure became the basis for large-scale AI implementation: today Levi's uses more than 1000 AI agents, GitHub Copilot, and Microsoft Fabric to automate development, analytics, and business processes.

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⚡️ Claude Code против Codex

MCP. Directory has published a detailed comparison of two of the most popular agent-based CLIs for programming — Claude Code by Anthropic and Codex by OpenAI.

The authors conclude that there is no overall winner between them: both tools support MCP, can independently edit code, work with Git, run commands, and use subagents.

The key factors of choice are the model on which the agent works and the subscription already paid by the user. At the same time, the scenario of using both CLI simultaneously is becoming more and more popular among experienced developers: one agent writes code, and the other independently checks changes before committing.

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⚡️ .NET CLI tools in the AI fury or how to guide agents during production investigations

Christophe Nasarre discusses how to integrate diagnostic tools like dotnet-dump, dotnet-counters, and dotnet-dstrings with AI agents like Cursor, GitHub Copilot, Claude Code, and Visual Studio.

In the article, the author describes three scenarios: turning your own CLI utilities into MCP servers with typed tools and ready-made workflows, using SKILL.md files to manage existing console utilities without changing their code, and a more advanced option — managing graphical applications like Windbg through a special bridge.

According to Christoph, this approach allows AI to be entrusted not only with writing code, but also with a full-fledged investigation of problems in production, from finding memory leaks to analyzing locks and the causes of high application latency.

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⚡️ Microsoft brings a .NET modernization agent to GitHub Copilot

Microsoft has introduced the Upgrade Agent, a GitHub Copilot agent that automates migrating .NET applications to newer versions of the platform. Rather than a one-shot prompt, it runs as a multi-phase workflow: it assesses the project and its dependencies, builds a prioritized upgrade plan, executes code transformations, and tracks builds and errors in real time. Progress and code changes are shown on an interactive upgrade canvas. The agent is available in Visual Studio, Visual Studio Code, and GitHub Copilot CLI, and is added via the microsoft/upgrade-agent-plugins marketplace plugin.

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⚡️ Canonical launches managed Kubeflow service on Microsoft Azure

Canonical has unveiled Managed Kubeflow on Microsoft Azure — a fully managed ML orchestration platform that deploys from the Azure Marketplace in under 30 minutes. The service runs entirely within the customer's cloud perimeter: data never leaves their tenant, and access is governed through Microsoft Entra ID and role-based policies. Canonical takes over Kubeflow operations — Istio configuration, upgrades and security patching, GPU and storage provisioning — removing the operational burden from platform engineering teams. This lets data science teams focus on ML workflows, from distributed training and fine-tuning of generative models to predictive analytics and fraud detection.

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⚡️ OWASP releases Top 10 security risks for agentic AI applications for 2026

The OWASP GenAI Security Project has published the OWASP Top 10 for Agentic Applications 2026 — a peer-reviewed industry framework describing the most critical security risks facing autonomous AI agents that plan, act, and make decisions across complex workflows. Released on December 9, 2025, the list was developed with more than 100 experts, researchers, and practitioners. It distills OWASP's broader generative-AI guidance into practical, actionable measures, giving builders, defenders, and decision-makers a clear starting point for reducing agentic AI risks and supporting safe, trustworthy deployments.

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⚡️ F# Weekly #28, 2026

A new issue of the F# Weekly digest is out. The week's key releases are Mibo 2.0, a game framework for building indie games in F# with support for Raylib, MonoGame, and headless servers, and the Fable 5.7 compiler, which speeds up discriminated union pattern matching by 6–10x and delivers 1.6x faster sequences when compiling to Python. The issue also features Mathias Brandewinder's piece on rendering cast shadows in graphical F# applications, the next part of Urs Enzler's event sourcing series, the SharpLsp language server for F# and C#, and the latest TypeScript 7.0 and Visual Studio Code 1.128 releases.

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⚡️ Brain: the AI system that flags Azure outages

Microsoft has unveiled Brain, an internal AI-based system that continuously monitors Azure's health and increasingly acts on its own: declaring outages, halting problematic rollouts, and notifying affected customers. As Azure CTO Mark Russinovich explained, Brain builds a real-time digital twin of the cloud and assesses service health using machine learning. Automatic notifications have markedly cut support tickets, as customers learn about a problem before they need to call. On top of Brain, the company is already running AI agents that help find and fix the cause of an outage faster.

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🎥 A Microsoft lecture on the engineering path to a utility-scale quantum computer

Microsoft has published a lecture from its educational series "Building the Modern Quantum Architecture," devoted to the engineering path toward a utility-scale quantum computer — one capable of solving problems classical machines cannot touch. The presenter, Microsoft Technical Fellow Dr. Matthias Troyer, explains why the most promising applications lie in chemistry and materials science — from better batteries to sustainable coolants — and how quantum computing will work alongside AI and high-performance computing (HPC) to accelerate scientific discovery. He also explores the idea of teaching AI the laws of quantum physics to predict material properties more accurately.

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⚡️ .NET 11 Preview 5: new Process APIs eliminate deadlocks when reading process output

In the latest part of his .NET 11 preview series, Andrew Lock walks through the Process API improvements in Preview 5. The old approach with `StandardOutput.ReadToEnd()` and `StandardError.ReadToEnd()` could deadlock when reading a child process's output. .NET 11 adds safe methods that read stdout and stderr simultaneously: `ReadAllText()` / `ReadAllTextAsync()`, a line-by-line `ReadAllLines()` with `await foreach` support for real-time processing, `ReadAllBytes()` for raw data, and one-call `RunAndCaptureText()` methods that combine startup, output capture, and waiting for exit. The changes remove common pitfalls, cut boilerplate, and make the APIs more discoverable through modern C# constructs.

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⚡️ F# Weekly #29, 2026

A new issue of the F# Weekly digest is out. The week's main highlights are .NET 11 Preview 6, which brings F# language updates, and the release of the Mibo 3.0 game framework with MonoGame 3.8.5 support plus the Vulkan and DirectX 12 graphics APIs. The issue also covers fresh ecosystem library releases — Fable 5.11, Thoth.Json 13.0, Argu 6.2.5, SQLProvider 1.5.26, and specialized packages such as BioFSharp 3.1 and FsSpreadsheet.ExcelIO 7.0. Notable open-source projects include the Myriad code generator, the Grace version control system written in F#, the Zest static site generator, and the Fedit terminal editor. The issue also features video tutorials, posts on event sourcing and reflection, and Microsoft's .NET modernization resources.

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⚡️ Background tasks in ASP.NET Core with NCronJob and SignalR

Damien Bowden shows how to implement a background task scheduler in ASP.NET Core using the open-source NCronJob package together with SignalR to push execution status to clients in real time. Jobs implement the `IJob` interface with a `RunAsync` method that runs on a schedule and supports dependency injection — access to logging and SignalR hubs. In the example, two job types dispatch begin and end messages every five seconds, demonstrating concurrent and non-concurrent execution (the `[SupportsConcurrency(5)]` attribute), while the frontend displays these messages in real time via the SignalR JavaScript client. According to the author, the approach covers most typical scheduling scenarios while staying simple and maintainable.

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⚡️ Mistral AI strikes multibillion-dollar deal with Microsoft to expand Azure in Europe

French startup Mistral AI — one of Europe's leading AI developers, known for its open-weight large language models and seen as the continent's main alternative to OpenAI — has announced a multibillion-dollar partnership with Microsoft to expand computing infrastructure across Europe (no specific figure was disclosed). The deal integrates Mistral's models into the Azure Foundry service and gives Azure customers access to the startup's France-based data centers. Two models are being added to Foundry — Mistral Medium 3.5 (open weights) and OCR 4 for document processing — with deployment options including Azure Local environments to meet data residency requirements. Microsoft President Brad Smith said the deal combines American and European technology. The partnership aligns with Europe's push for "sovereign AI."

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