Start Debugging

Tag: dotnet

442 posts · Page 1 of 45

2026-10-19 dotnet opentelemetry observability

OpenTelemetry .NET 1.20: ConfigureSampler lets libraries wrap the app's sampler

OpenTelemetry .NET 1.20.0, released on October 15, 2026, adds TracerProviderBuilder.ConfigureSampler. A library can now wrap the sampler the SDK resolved from SetSampler, OTEL_TRACES_SAMPLER, or the default, instead of silently overwriting it.

2026-10-18 dotnet dotnet-11 csharp

How to Format Numbers with Indian Lakh/Crore Digit Grouping in .NET (NumberGroupSizes)

Use the en-IN culture or set NumberFormatInfo.NumberGroupSizes to [3, 2] to print 12,34,56,789 instead of 123,456,789 in C#. Measured on .NET 10 and .NET 11 RC1: how the array works, why CurrencyGroupSizes is separate, the invariant-globalization trap that silently prints Western grouping, and a lakh/crore words helper.

2026-10-18 dotnet refit httpclient

Refit 16.4 ships HttpRetryHandler, and it reads GitHub, Azure and AWS rate-limit headers

Refit 16.4.0 adds an opt-in HttpRetryHandler that retries idempotent requests, honors Retry-After and provider-specific headers like x-ratelimit-reset and x-ms-retry-after-ms, and needs no Polly or resilience package.

2026-10-16 dotnet logging observability

.NET Extensions 10.11: buffered logs can finally keep their scopes

Microsoft.Extensions.Telemetry 10.11.0, released October 15, 2026, adds an experimental IncludeScopes option to global and per-request log buffering, so OrderId and TenantId from BeginScope survive a Flush() instead of being silently dropped.

2026-10-15 dotnet tooling sdk

dotnetup public preview: one command installs the SDK your global.json pins

dotnetup went to public preview on October 15, 2026. Run dotnetup sdk install in a repo and it reads global.json, maps rollForward to an update channel, and can even write newer patch versions back to the file.

2026-10-14 dotnet-11 csharp cbor

.NET 11 RC 2 Lets CborReader Parse a Payload One Chunk at a Time

System.Formats.Cbor 11.0.0-rc.2 adds isFinalBlock, NeedsMoreData, and SlideData to CborReader, so you can decode CBOR straight off a stream without buffering the whole document. Verified on SDK 11.0.100-rc.2.

2026-10-14 comparison dotnet csharp

FileSystemWatcher vs polling for detecting file changes on a network share in .NET

On an SMB or NFS share, polling is the source of truth and FileSystemWatcher is at best a hint. FileSystemWatcher misses remote changes on Linux and macOS, overflows its 64 KB network buffer, and stops for good when the connection drops. Use a periodic snapshot diff, and let the watcher only trigger an early scan. Verified on .NET 10.0.10.

2026-10-14 comparison csharp dotnet

Thread.Sleep vs Task.Delay vs SpinWait for waiting in C#

Use await Task.Delay for any timed wait in async code, Thread.Sleep only on a dedicated thread you own, and SpinWait only for sub-microsecond waits inside lock-free code. To wait for a condition, use a signal (ManualResetEventSlim, SemaphoreSlim, TaskCompletionSource) instead of any of the three. Measured on .NET 10.0.10.

2026-10-13 mcp azure dotnet

Azure MCP Server 3.0 rejects unknown parameters and creates resources secure by default

Azure MCP Server 3.0.0 shipped on October 12, 2026. Tool calls with unknown parameters now fail, options like subscription and tenant were removed from many tools, new Storage accounts disable Shared Key auth, and the server speaks the stateless MCP 2026-07-28 protocol.

2026-10-13 errors dotnet dotnet-10

Fix: FileInfo.Length returns a stale size for a file that is still being written on Windows

FileInfo caches its size, enumeration reads NTFS's lazily updated directory entry, and the writer may still hold bytes in its own buffers. Refresh(), or better, read the length from a shared handle with RandomAccess.GetLength.