Tag: dotnet

Visual Studio 18.5 GA ships a guided Debugger Agent workflow in Copilot Chat that forms a hypothesis, sets breakpoints, rides along through a repro, validates against runtime state, and proposes a fix.

Visual Studio 2026 18.5.0 lets GitHub Copilot load Agent Skills from .github/skills, .claude/skills, and ~/.copilot/skills. Reusable SKILL.md instruction packs travel with your repo.

.NET 11 Preview 3 teaches RyuJIT to eliminate redundant bounds checks on consecutive index-from-end access and on i + constant < length patterns, cutting branch pressure in tight loops.

.NET 11 Preview 3 adds RegexOptions.AnyNewLine so ^, $, \Z, and . recognize every Unicode newline sequence, including \r\n, NEL, LS, and PS, with \r\n treated as one atomic break.

Aspire 13.2 ships an --isolated flag that gives each aspire run its own random ports and secrets store. It unblocks multi-checkout work, agent worktrees, and integration tests that need a live AppHost.

dotnet run -e in .NET 11 Preview 3 passes environment variables straight from the CLI and surfaces them as MSBuild RuntimeEnvironmentVariable items.

dotnet watch gains Aspire app host integration, automatic relaunch after crashes, and fixed Ctrl+C handling for Windows desktop apps in .NET 11 Preview 3.

Loic Baumann's Typhon project targets 1-2 microsecond ACID commits using ref structs, hardware intrinsics, and pinned memory, proving C# can compete at the systems programming level.

C# strings sent through Dapper default to nvarchar(4000), forcing SQL Server into implicit conversions and full index scans. Here's how to fix it with DbType.AnsiString.

GitHub Copilot Modernization is pitched as an Assess, Plan, Execute loop for migrating legacy .NET apps. The assessment phase is where the value lives: an inventory report, categorized blockers, and file-level remediation guidance you can diff like code.