Copilot Modernization, Coupling, and EF Core Benchmarks
Covers .NET app modernization, event-driven tradeoffs, PostgreSQL JSONB indexing with EF Core, plus MAUI AI, Aspire updates, and JWT auth.
Jasen's top three picks
- 1 .NET MAUI in 2026 - How AI has Transformed App Development Forever
youtube.com
A useful look at how AI tooling is reshaping MAUI work beyond code generation, especially design, testing, and release flow.
- 2 Event Driven Architecture and Coupling: You’re Not as Decoupled as You Think
codeopinion.com
A good reminder that message brokers don't magically remove coupling; the interesting part is where dependencies still leak through.
- 3 Today I will... Modernize a .NET application
devblogs.microsoft.com
This is one of the more concrete modernization stories lately, with Visual Studio and Copilot aimed at real legacy upgrades.
Editor's note
I pulled together another deliberately mixed issue today. The Visual Studio modernization piece stood out because Copilot-assisted upgrades from .NET Framework to .NET 10 are getting more practical, and the event-driven coupling article is the kind of reality check architects need. I also liked the PostgreSQL JSONB benchmarking post for its measured EF Core focus instead of hand-wavy database advice.
Today's articles
.NET MAUI in 2026 - How AI has Transformed App Development Forever
youtube.com
AI is transforming not only how we write code but also how we test code, implement design, and even release our applications. .NET MAUI is part of this AI transformation with new powerful tools from t...
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Event Driven Architecture and Coupling: You’re Not as Decoupled as You Think
codeopinion.com
So, you broke apart your monolith. You introduced a message broker. You’re using event driven architecture. Events are flying everywhere. You’re decoupled now, right? But somehow nothing feels any bet...
Topics: Design Patterns Event Sourcing
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Today I will... Modernize a .NET application
devblogs.microsoft.com
Today I will modernize a .NET Framework application to .NET 10 using the GitHub Copilot modernization tooling built-in to Visual Studio. The tooling helps us upgrade applications running on legacy ver...
Topics: .NET 10 .NET Framework GitHub Copilot
Read articleFast Focus: Using Copilot to Build Migration Tools
youtube.com
Migrating can be tough. Moving between versions of a package, or a different package altogether, can be a frustrating experience. With Copilot, you can leverage its' capabilities to create tools as a ...
Topics: .NET Core GitHub Copilot
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I Built a Full-Stack Bug Tracker with .NET and React: Here’s What I Learned
medium.com
Clean Architecture on the backend, a hard line between server and client state on the frontend, and the small choices that mattered more…
Topics: ASP.NET Core Clean Architecture
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Azure Cosmos DB in the Agentic Era: Data Tools for Developers and AI Agents
devblogs.microsoft.com
Anthropic's 2026 Agentic Coding Trends Report captures an important tension in how developers use AI. Engineers report using AI in roughly 60% of their work, yet say they can fully delegate only 0–20%...
Topics: Azure Cosmos DB OpenAI
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Aspire 13.5: Fresh pixels and better workflows
devblogs.microsoft.com
Aspire 13 thus far has been all about expanding Aspire's capabilities across languages, deployment targets, and coding agents. We've shipped a full-parity TypeScript AppHost, tons of CLI features, an ...
Topics: .NET Aspire
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From 17ms to 0.04ms: How to Design the Right SQL Index
milanjovanovic.tech
What does a good SQL index look like? I seeded Postgres with 1 million comments and measured every indexing decision with EXPLAIN ANALYZE: a 17ms sequential…
Topics: Performance PostgreSQL
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I Ship to Production Every Day. Feature Flags Are Why That’s Safe.
medium.com
How I built a code-first feature flag system for trunk-based development — with per-environment state, client-safe filtering, expiry…
Topics: ASP.NET Core Design Patterns
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Business Rules Don’t Have to Live in a Wiki Page: Enforcing Them with a Roslyn Analyzer
medium.com
How a .NET Roslyn analyzer moves a business-specific guardrail from developer memory into every build
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Building Browser Automation Agents with Playwright and .NET
c-sharpcorner.com
Build browser automation agents with Playwright and .NET that can navigate websites, interact with web pages, execute controlled actions, and apply production-ready agent safety guardrails.
Read article.NET Toolbox August Update
steven-giesel.com
Quite some time passed since I posted a changelog to the .NET Toolbox . And there are big news: The Toolbox is running dotnet native in the browser thanks to wasm and Mono!
Topics: .NET Core Native AOT
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What Actually Happens When React Calls a .NET API?
medium.com
Following one API request from a React button click to PostgreSQL and back.
Topics: PostgreSQL Web API
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PostgreSQL 19 Beta: Benchmarking JSONB Indexes with EF Core
c-sharpcorner.com
Benchmark PostgreSQL 19 Beta JSONB indexes with EF Core by measuring query performance, indexing strategies, execution plans, storage, and application response times.
Topics: Benchmarking EF Core PostgreSQL
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.NET 11 Preview 7 Brings Updates Across C#, ASP.NET Core, EF Core, and Windows Forms - infoq.com
infoq.com
.NET 11 Preview 7 Brings Updates Across C#, ASP.NET Core, EF Core, and Windows Forms infoq.com
Topics: ASP.NET Core C# EF Core
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C# 15 & .NET 11: 11 New Features Every .NET Developer Should Know
medium.com
C# keeps getting better.
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Performance Tuning in Modern C# Applications: Stop Using Brute Force and Start Thinking in Grey…
medium.com
Performance tuning is often approached as a race to make individual operations faster.
Topics: C# Performance
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ASP.NET Core: JWT Authentication and Authorization
towardsdev.com
Continue reading on Towards Dev »
Topics: ASP.NET Core Authorization JWT
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