#DevtoDotnet

C# is the programming language Microsoft created for building Windows apps, games, and web services....

.NET 8 and .NET 9 end of support: November 10, 2026. Here's the step-by-step checklist and the breaking changes that actually bite.

Microsoft has 11 featuring C# 15, which introduces union types and closed class hierarchies. The release includes performance optimizations, a default Nati

Your EF Core query is correct. It returns the right row. The column has an index. And SQL Server...

Granularity does not decide how finely a customization can change things. It decides whether it keeps up when the package changes later.

Exit 719 is up. The address is exit719.com. This post is the current shape of the product, not a...

Honestly, whenever I add a new model to an EF Core project, I feel like I'm stuck in the same...

Glass.NET 1.3.0 ships a headless CLI and an MCP server. Reconstruct a buildable C# project or a single member with glass export, generate an SBOM, check NuGet package authenticity, diff two builds, and let an AI coding assistant read decompiled C# over a…

A params int[] helper allocated a fresh array on every call. Switching to params ReadOnlySpan dropped the allocations to zero and ran the hot loop about 4.5x faster.

While .NET provides powerful thread-safe collections in the System.Collections.Concurrent...

Learn how license keys can gate paid features in open core and Fair Source projects without relying on code secrecy.

The order does not exist. Now what? Every .NET API answers this question many times a day, and there...

Paging a list of orders is a solved problem. Paging a ranked home feed is not, and I found that out...

VB.NET syntax and program structure, data types and Option Strict/Explicit/Infer, operators and control flow, procedures (Sub vs Function, ByVal/ByRef

For years, we have been designing software systems around APIs. We expose REST endpoints, define...

Before an AI tool performs a consequential action, commit the worker’s claim, its attempt ID, and the...

Feature Flag Management in .NET Core: A Complete Guide with Real-World Examples ...