Start Debugging

Blog

Page 15 of 102

2026-09-16 comparison ef-core ef-core-11

SQL Server compatibility level 150 vs 160: what changes for EF Core 11 queries

EF Core 11 now defaults UseSqlServer to compatibility level 160, which puts LEAST, GREATEST and two-argument LTRIM/RTRIM into your SQL, including every Take(n).FirstOrDefault(). Keep 160 on SQL Server 2022 and later; pin UseCompatibilityLevel(150) if any environment still runs SQL Server 2019.

2026-09-15 errors aspnetcore dotnet-10

Fix: ASP.NET Core API endpoints return 401 instead of redirecting to the login page after upgrading to .NET 10

In .NET 10 cookie auth answers API-style endpoints with 401/403 instead of a login redirect. Restore it per endpoint, globally, or with an AppContext switch.

2026-09-15 errors flutter android

Fix: flutter doctor --android-licenses says 'The --licenses option is no longer needed' with cmdline-tools 23

cmdline-tools 23.0 retired sdkmanager --licenses, so Flutter before 3.47.3 reports license status unknown. Upgrade Flutter, or pin cmdline-tools 22.0.

2026-09-15 errors ef-core ef-core-11

Fix: EF Core MigrateAsync and CanConnectAsync keep retrying on 'Login failed for user' for 60 seconds

EF Core's SQL Server existence check retries error 18456 for a full minute, with or without EnableRetryOnFailure. Fail fast, cap RetryTimeout, or wait for EF Core 12.

2026-09-15 errors claude-code ai-agents

Fix: a PreToolUse hook returns "allow" but a deny rule still blocks the tool call in Claude Code

Since Claude Code 2.1.77 a PreToolUse hook's allow cannot override a deny or ask rule. Find the matching rule with /permissions, then move the policy into the hook.

2026-09-15 dotnet ai microsoft-extensions-ai

Microsoft.Extensions.AI 10.10 Fails Evaluation Metrics the Judge Never Scored

Microsoft.Extensions.AI.Evaluation.Quality 10.10.0 now marks unparseable and out-of-range quality scores as failed, and Microsoft.Extensions.AI.OpenAI 10.10.0 drops the Assistants adapter. Measured before and after on 10.9.0.

2026-09-14 dapper dotnet csharp

Dapper 2.1.86 brings back DateOnly and TimeOnly, two years after pulling them

Dapper 2.1.86 re-enables built-in DateOnly and TimeOnly mapping for parameters, members, and scalars, with the column-offset and silent default(T) bugs fixed. What changed, what I measured, and what it means for your custom type handlers.

2026-09-14 claude-code ai-agents hooks

Fix: a coding agent loops forever re-running a check it can't satisfy

When a Stop hook, /goal condition, or CI-style gate demands a check the agent's environment can never pass, Claude Code keeps re-running it until the 8-consecutive-block cap (2.1.143+) ends the turn. Here is why it happens and the hook patterns that let the agent give up correctly.

2026-09-14 errors ef-core ef-core-11

Fix: Could not load file or assembly 'Microsoft.Data.SqlClient, Version=7.0.0.0' after updating EF Core

EF Core 11 is compiled against Microsoft.Data.SqlClient 7.0.0.0, but a 6.x copy won the restore or the deploy. Remove the old SqlClient pin and redeploy the full output.

2026-09-14 errors efcore dotnet

Fix: InvalidOperationException: Nullable object must have a value in an EF Core 11 projection

EF Core throws this when a Select reads a SQL NULL into a non-nullable int, decimal or DateTime. Cast the member to its nullable type and add ?? default, or guard the navigation with a null check.