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Tag: dotnet

134 posts · Page 1 of 14

2026-04-30 claude-code ai-agents aws-bedrock

Claude Code 2.1.122 Lets You Pick a Bedrock Service Tier From an Env Var

Claude Code v2.1.122 adds the ANTHROPIC_BEDROCK_SERVICE_TIER environment variable, sent as the X-Amzn-Bedrock-Service-Tier header. Set it to flex for a 50 percent discount on agent calls or priority for faster responses, without touching SDK code.

2026-04-30 csharp dotnet dotnet-11

How to add per-endpoint rate limiting in ASP.NET Core 11

A complete guide to per-endpoint rate limiting in ASP.NET Core 11: when to pick fixed window vs sliding window vs token bucket vs concurrency, how RequireRateLimiting and [EnableRateLimiting] differ, partitioning by user or IP, the OnRejected handler, and the distributed deployment pitfall everyone hits.

2026-04-30 csharp dotnet dotnet-11

How to use the new System.Threading.Lock type in .NET 11

System.Threading.Lock arrived in .NET 9 and is the default synchronization primitive on .NET 11 and C# 14. This guide shows how to migrate from lock(object), how EnterScope works, and the gotchas around await, dynamic, and downlevel targets.

2026-04-30 csharp dotnet dotnet-11

How to write a source generator for INotifyPropertyChanged

A complete guide to building your own incremental source generator for INotifyPropertyChanged in C# 14 and .NET 11: the IIncrementalGenerator pipeline, marker attributes, partial-class output, the SetProperty pattern, and how to stay AOT-friendly.

2026-04-29 dotnet dotnet-11 filesystem

How to detect when a file finishes being written to in .NET

FileSystemWatcher fires Changed before the writer is done. Three reliable patterns for .NET 11 to know a file is fully written: open with FileShare.None, debounce with size stabilization, and the producer-side rename trick that avoids the problem entirely.

2026-04-29 dotnet dotnet-11 performance

How to use SearchValues<T> correctly in .NET 11

SearchValues<T> beats IndexOfAny by 5x to 250x but only when you use it the way the runtime expects. The cache-as-static rule, the StringComparison gotcha, when not to bother, and the IndexOfAnyExcept inversion trick that nobody documents.

2026-04-29 skiasharp dotnet maui

SkiaSharp 4.0 Preview 1: Immutable SKPath, Variable Fonts, and a New Co-Maintainer

SkiaSharp 4.0 Preview 1 lands with Uno Platform as co-maintainer alongside the .NET team. SKPath becomes immutable behind a new SKPathBuilder, and HarfBuzzSharp gets full OpenType variable font axis control.

2026-04-28 azure dotnet dotnet-11

How to upload a large file with streaming to Azure Blob Storage

Upload multi-GB files to Azure Blob Storage from .NET 11 without loading them into memory. BlockBlobClient.UploadAsync with StorageTransferOptions, MultipartReader for ASP.NET Core uploads, and the buffering traps that put your payload on the LOH.

2026-04-27 csharp dotnet dotnet-11

How to use Native AOT with ASP.NET Core minimal APIs

A complete .NET 11 walkthrough for shipping an ASP.NET Core minimal API with Native AOT: PublishAot, CreateSlimBuilder, source-generated JSON, the AddControllers limitation, IL2026 / IL3050 warnings, and EnableRequestDelegateGenerator for library projects.

2026-04-26 csharp dotnet dotnet-11

How to add a global exception filter in ASP.NET Core 11

A complete guide to global exception handling in ASP.NET Core 11: why IExceptionFilter is the wrong tool, how IExceptionHandler and UseExceptionHandler work together, ProblemDetails responses, multi-handler chains, and the .NET 10 diagnostics suppression breaking change.