2026-05-27: Improving C# Memory Safety, C# Kaigi 2026, Visual Studio May Update

Published on Wednesday, 27 May 2026

トピックス

Improving C# Memory Safety - .NET Blog

https://devblogs.microsoft.com/dotnet/improving-csharp-memory-safety/

C# Kaigi 2026 | 公式サイト

https://csharpkaigi.net/

Visual Studio May Update – Plan, Review, Refine - Visual Studio Blog

https://devblogs.microsoft.com/visualstudio/visual-studio-may-update-plan-review-refine/

Qt Bridges: Public Beta for the C# Bridge Is Out!

https://www.qt.io/blog/qt-bridges-public-beta-for-csharp

Announcing Agent Governance Toolkit MCP Extensions for .NET - .NET Blog

https://devblogs.microsoft.com/dotnet/announcing-agent-governance-toolkit-mcp-extensions-for-dotnet/

リリース

アーティクル、スライドなど

Give Your .NET MAUI Android Apps a Material 3 Makeover - .NET Blog

https://devblogs.microsoft.com/dotnet/dotnet-maui-material-3/

Doing More with GitHub Copilot as a .NET Developer - .NET Blog

https://devblogs.microsoft.com/dotnet/doing-more-with-github-copilot/

EntityFrameworkCoreのバージョンをプロジェクトごとに分けてマイグレーションを実行する（WPF + MSIX + SQLite） - Qiita

https://qiita.com/msms/items/8019a03dd24bba81e2da

【C#データ構造】Segment Treeで区間最小値を高速に求める

https://zenn.dev/student_blog/articles/segment-tree-range-min-csharp

How Windows PE Files Use Custom Resources to Embed Anything » TrainSec

https://trainsec.net/library/windows-internals/how-windows-pe-files-use-custom-resources-to-embed-anything/

Zstandard compression in .NET 11

https://steven-giesel.com/blogPost/6066abb6-640a-4225-ac33-3f4d5a1a1d16

We DO NOT own ilspy dot org · Issue #3709 · icsharpcode/ILSpy

https://github.com/icsharpcode/ILSpy/issues/3709

.NETでのサプライチェーン攻撃対策

https://zenn.dev/litharge/articles/668e15f498345a

C# Networking Deep Dive With io_uring — Part 4 — zerg

https://mda2av.github.io/zerg/blog/io-uring-minima-part-4.html

Microsoft Agent Framework をローカルLLMで試してみる その14(MCPクライアント)

https://zenn.dev/yy7613/articles/e329f7ebbb3c00

Windows EC2 に .NET Aspire Dashboard を Dockerなしで導入する

https://zenn.dev/kutar/articles/59933b6bdd24fe

Fenwick Tree (BIT)を図解でわかりやすく解説

https://zenn.dev/student_blog/articles/fenwick-tree-bit-csharp

Cake v6.2.0 released

https://cakebuildnet.medium.com/cake-v6-2-0-released-97fa838a35f9

Rider 2026.2 EAP 3: Cost-effective Agentic Test Coverage, Code Change Previews, GameDev Templates, and NuGet Improvements | The .NET Tools Blog

https://blog.jetbrains.com/dotnet/2026/05/22/rider-2026-2-eap-3-cost-effective-agentic-test-coverage-code-change-previews-gamedev-templates-and-nuget-improvements/

WinUI 3で商用クオリティの「カスタムタイトルバー」を実装する - Qiita

https://qiita.com/youx2moon/items/ef8901a94d2746fbb3ce

MSBuild SDK ベースになった Azure Functions の新しい .NET Isolated SDK がプレビューに - しばやん雑記

https://blog.shibayan.jp/entry/2026/05/25/175710

How I bypassed Blazor WebAssembly's Virtual DOM using raw WASM pointers

https://dev.to/unitbuilds_cc/how-i-bypassed-blazor-webassemblys-virtual-dom-using-raw-wasm-pointers-4jn7

dotMorten | Automatically getting API difference diagrams in your .NET PRs

https://xaml.dev/post/automatically-getting-api-difference-diagrams-in-your-net-prs

いまさら聞けない CancellationToken

https://zenn.dev/poipoionigiri/articles/eafa9efa99be11

Your dev loop is full of tribal knowledge | Aspire Blog

https://devblogs.microsoft.com/aspire/dev-loop-tribal-knowledge/

Microsoft 公式の WinUI agent plugin で WinUI 3 アプリ開発がぐっと楽になった話

https://zenn.dev/microsoft/articles/winui-agent-plugin

.NET (OK, C#) finally gets union types🎉: Exploring the .NET 11 preview - Part 2

https://andrewlock.net/exploring-the-dotnet-11-preview-2-dotnet-gets-union-types/

HarnessAgent を試す - Microsoft Agent Framework (C#)

https://zenn.dev/microsoft/articles/agent-framework-harness-intro

Microsoft Agent Framework の CodeAct を使って JavaScript を実行してみた

https://zenn.dev/yy7613/articles/d4e0c2762beac6

【.NET】最近マージされたLINQのMin/Maxの最適化

https://zenn.dev/prozolic/articles/d982d5f9f82973

Pythonで学習したCNNモデルをONNX Runtime (C#) で推論してみた - Qiita

https://qiita.com/inuta-one/items/31ea766cbfaa3fbc1653

Playwright+ for .NET Apps

https://platform.uno/blog/playwright-for-dotnet-apps/

Streamline Aspire SDK Updates with GitHub Actions

https://csharp.christiannagel.com/2026/05/10/aspire-update/

デジタル認証API認証をしてみたい

https://zenn.dev/au/articles/why-choose-dotnet

Writing Allocation-Free Code in .NET

https://slicker.me/dotnet/allocation-free.html

VSLive! Microsoft AI Hackathon 2026: Send Your Team Home With Working Code - Visual Studio Blog

https://devblogs.microsoft.com/visualstudio/vslive-microsoft-ai-hackathon-2026-send-your-team-home-with-working-code/

Microsoft Agent Framework の Magentic を頑張って動かしてみた ( C# ver 1.5.0 での確認 )

https://zenn.dev/yy7613/articles/2cd76b4845c553

Agent Governance Toolkit の Agent Trust によるエージェント信頼性管理 - .NET 9 での実装入門

https://zenn.dev/microsoft/articles/agent-governance-toolkit-trust-02

NuGet Package Pruning: Cleaner Dependencies and Actionable Vulnerability Reports - .NET Blog

https://devblogs.microsoft.com/dotnet/nuget-package-pruning-in-dotnet-10/

Plan Before You Build: Introducing the Plan agent in Visual Studio - Visual Studio Blog

https://devblogs.microsoft.com/visualstudio/plan-before-you-build-introducing-the-plan-agent-in-visual-studio/

Why do Windows client editions on 32-bit x86 systems artificially limit RAM to 4 GB? - The Old New Thing

https://devblogs.microsoft.com/oldnewthing/20260512-00/?p=112316

Microsoft Foundry Local 1.1 を .NET で使ってみる

https://blog.azure.moe/2026/05/18/microsoft-foundry-local-1-1-%e3%82%92-net-%e3%81%a7%e4%bd%bf%e3%81%a3%e3%81%a6%e3%81%bf%e3%82%8b/

12 バイトで .NET メソッドの行き先を変える - Qiita

https://qiita.com/ZiYuCai1984/items/f712d23e71d9d2e358dd

設計を逆転させたら、ウェーハマップ描画が3秒から1.6ミリ秒になった話

https://zenn.dev/sitio1/articles/5d9f66005dbd21

ライブラリ、リポジトリ、ツールなど

resx-designer - Visual Studio Marketplace

https://marketplace.visualstudio.com/items?itemName=hetima.resx-designer

ツイート