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MAUI 10.0.100 ships MauiBlazorWebViewBuilderExtensions.UsePlatformHandler, a supported seam for replacing BlazorWebViewHandler without reimplementing everything AddMauiBlazorWebView() registers.

Inside testWidgets the ambient clock from package:clock is already fake, but it starts at whatever wall time the test began.

A bool helper method throws "could not be translated".

Declare a generic extension block with a struct, Enum constraint and you get Status.Values, Status.Count, and Status.Parse on every enum in your solution.

There is no HasBeenEnumerated flag on IEnumerable.

MCP error -32022 means your client opened at 2025-11-25 but the server only serves 2026-07-28.

A headersHelper field on url marketplaces and catalog entries runs a local command that prints HTTP headers, so an internal plugin catalog behind S3 or an artifact repo can authenticate with a short-lived token.

The JEP 472 warning on JDK 24+ is harmless and prints once.

Cursor shipped Builds for Cloud Agents on August 13, 2026: a bootable filesystem snapshot of an already prepared machine.

The 3.47.1 hotfix validates plugin class and package identifiers before they land in GeneratedPluginRegistrant.

Gradle is compiling with a JRE.

Targeting Android SDK 35 puts your Flutter app in edge-to-edge mode, so the Scaffold body draws behind the navigation bar.

getToken() runs before APNs hands iOS the device token.

Stop shipping SKILL.md folders inside every agent deployment.

iOS 26 simulator runtimes are arm64-only, so a leftover EXCLUDED_ARCHS arm64 line builds an Intel-only Runner no simulator can execute.

google_sign_in 7.0.0 made GoogleSignIn a singleton.

A [FromForm] Dictionary in a minimal API binds with an empty prefix: the form keys must be [key], not metadata[key].

A PR merged into dotnet/aspnetcore main on August 19, 2026 makes ExceptionHandlerMiddleware honour BadHttpRequestException.StatusCode instead of overwriting it with 500.

Semantic Kernel .NET 1.80.0 ships a breaking change: the OpenAPI plugin's default HttpClient no longer follows redirects, closing an SSRF bypass.

Since August 3, 2026 you can pick a reasoning level next to the model when you start a Copilot cloud agent task.

ASP.NET Core 11 emits openapi 3.2.0 by default and Swagger UI below 10.1.5 rejects it.

Swashbuckle 8 and later emit openapi 3.0.4, not 3.0.1, and there is no OpenApiSpecVersion for a patch version.

EF Core throws this when a client-evaluated piece of your query throws while EF evaluates it.

Preview 7 flips MSBuild server from opt-in to on by default, so back-to-back dotnet build and dotnet test calls reuse a warm worker process.

CS0121 after moving an extension method into a C# 14 extension block: the compiler still emits the old static form.

AutoMapper 15 removed the single-argument MapperConfiguration constructor.

CA1873 fires on the implicit params object[] allocation, so almost every LogDebug call trips it.

Claude Code and GitHub Copilot both ship allowedMcpServers and deniedMcpServers, but the matchers behave differently. serverName is a fallback that a single serverCommand entry silently disables, deny is a union while allow is not, and an invalid allowlist

Agent Plugins 1.0 says plugin.json at the root and mcp.json beside it.

A complete guide to redacting classified data in source-generated logs: build a taxonomy, write a Redactor, wire EnableRedaction and AddRedaction, and understand the discriminator that silently breaks partial masking.

Move a key off IDENTITY and onto a SQL Server sequence in EF Core 11 with UseSequence: the exact SQL EF emits, why explicit key values suddenly work without IDENTITY_INSERT, the bigint sequence feeding an int column, and the gaps you have to design around.

MCP 2026-07-28 mirrors the JSON-RPC method and target name into HTTP headers so a gateway can route, throttle, and audit without parsing the body.

A singleton cannot inject a DbContext, but it can inject IDbContextFactory, because AddDbContextFactory registers the factory as a singleton by default.

[JsonIgnore] on a required member throws InvalidOperationException: marked required but does not specify a setter.

Skip the downloadFileFromStream JS module entirely.

Flutter 3.47.0 stable flips desktop apps from Skia to Impeller without touching a line of your runner code.

Zstandard is the right default for dynamic API responses in .NET 11, but not at the quality the ASP.NET Core provider ships with.

Scalar ships 1.02 MiB of gzipped JavaScript and a far better request builder.

A write tool that asks before it writes needs three things the MCP SDK does not give you: an approval bound to the exact diff, a precondition on the file it previewed, and an integrity-protected requestState.

Pick by the return type of build(): T means Notifier, FutureOr means AsyncNotifier, Stream means StreamNotifier.

.NET 11 Preview 7 adds password-protected ZIP entries to System.IO.Compression, with AES-256 support, options types for whole-directory operations, and one empty-file bug that is already fixed in main.

Microsoft.Extensions.AI 10.9.0 adds RoutingChatClient, OrderedFailoverChatClient, and SemanticRoutingChatClient.

Mapping 200 internal REST endpoints to 200 MCP tools puts 200 KB of JSON schema in front of every request.

iOS blocks the Dart VM from flipping memory pages to executable, so JIT dies at startup.

Play rejects the bundle because a 64-bit .so still has 4 KB ELF segments.

The SDK Manager is re-unpacking a corrupt archive it cached in .downloadIntermediates.

Tightening a team's default permission mode to Manual is a one-line settings change interactively and a silent outage in CI, because headless runs turn every ask into a deny and still report success.

Test Explorer drives xUnit v3 through Microsoft.Testing.Platform server mode over a JSON-RPC socket, dotnet test does not.

MSB4057 means a target ran against the outer cross-targeting build of a multi-targeted MAUI project.

blazor.server.js 404s on .NET 10 because the script stopped being an embedded resource.