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Previous issues of The .NET Weekly

Containerize Your .NET Applications Without a Dockerfile
January 31, 2026
Learn how to containerize .NET applications without writing a single line of Dockerfile. The .NET SDK has built-in support for publishing directly to ...

A Practical Demo of Zero-Downtime Migrations Using Password Hashing
January 24, 2026
A practical demo of the zero-downtime migration pattern: run old + new password hash formats side-by-side, migrate users on login, and remove legacy s...

Solving the Distributed Cache Invalidation Problem with Redis and HybridCache
January 17, 2026
Learn how to solve the distributed cache invalidation problem in .NET 9 by implementing a Redis Pub/Sub backplane to synchronize HybridCache instances...

Solving Message Ordering from First Principles
January 10, 2026
Per-aggregate ordering is what we really want. But queues with competing consumers make it surprisingly easy to break. This article shows how the "fix...

The Urge to Build Something
January 03, 2026
Looking at my contribution graph now, I can see the whole journey mapped out in squares of green. The startup dreams. The pivot to teaching. The thous...

How to Build a High-Performance Cache Without External Libraries
December 27, 2025
Learn how to build a high-performance cache from scratch in .NET, moving from a simple ConcurrentDictionary to an optimized keyed-locking system. This...

Server-Sent Events in ASP.NET Core and .NET 10
December 20, 2025
ASP.NET Core 10 introduces native Server-Sent Events as a lightweight, HTTP-native alternative to SignalR for simple one-way real-time updates like da...

The New .slnx Solution Format (migration guide)
December 13, 2025
See what changes in .slnx, how to convert your existing .sln, and what to watch out for in CI.

DbContext is Not Thread-Safe: Parallelizing EF Core Queries the Right Way
December 06, 2025
Learn how to safely parallelize EF Core queries to improve performance by using IDbContextFactory to create isolated contexts, avoiding the thread-saf...

Vertical Slice Architecture: Where Does the Shared Logic Live?
November 29, 2025
Deciding where shared logic lives is the most critical moment in Vertical Slice Architecture adoption, because choosing wrong reintroduces the couplin...
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