Migrate from AutoMapper to source-generated mapping with Mapperly
A step-by-step checklist to replace AutoMapper 15 Profiles, IMapper, ForMember, and ProjectTo with Riok.Mapperly 4.3 source-generated mappers in .NET 11.
Tag: dotnet-11
313 posts · Page 21 of 32
Migrate from MediatR to plain dependency injection in .NET 11
A step-by-step checklist to remove MediatR 12-14 and replace IRequest handlers, ISender, pipeline behaviors, and INotification with plain service classes and constructor injection.
Migrate from Newtonsoft.Json 13 to System.Text.Json in a large .NET 11 codebase
A version-pinned playbook for swapping Newtonsoft.Json 13.0.4 for the in-box System.Text.Json on .NET 11: the attribute and settings mappings, the defaults that silently change your wire format, a staged rollout strategy, verification, and the gotchas that bite large codebases.
Migrate from .NET 8 to .NET 11: the full checklist
A version-pinned migration checklist from .NET 8 LTS to .NET 11 LTS, covering SDK install, csproj target framework, breaking changes in ASP.NET Core, EF Core, System.Text.Json, and the C# 14 overload-resolution shift, with rollback notes.
Migrate from .NET Framework 4.8 to .NET 11 in 2026
A version-pinned migration playbook for moving a .NET Framework 4.8 codebase to .NET 11 LTS in 2026, covering the SDK-style csproj rewrite, System.Web to ASP.NET Core, WCF, EF6 to EF Core 11, BinaryFormatter removal, AppDomain replacements, and a realistic rollback plan.
Migrate from Xamarin.Forms 5.0 to .NET MAUI 11: the full checklist
End-to-end migration from Xamarin.Forms 5.0 to .NET MAUI 11 GA on net11.0, covering csproj rewrite, custom renderer to handler conversion, AppShell wiring, DependencyService removal, MessagingCenter retirement, Resizetizer assets, and the gotchas that bite a real production codebase.
EF Core 11 Preview 4: Temporal Table Period Columns Can Finally Be Real Properties
EF Core 11 Preview 4 drops the long-standing shadow-property restriction on SQL Server temporal tables. PeriodStart and PeriodEnd can now be regular CLR properties, configured with strongly-typed HasPeriodStart and HasPeriodEnd lambdas.
ASP.NET Core in .NET 11 Preview 4 Teaches OpenAPI About the HTTP QUERY Method
.NET 11 Preview 4 makes ASP.NET Core OpenAPI generation recognize HTTP QUERY as a first-class operation in OpenAPI 3.2, with a graceful fallback for 3.0 and 3.1 documents.
Polly vs resilience handlers in .NET 11: which should you use?
Use the Microsoft.Extensions.Http.Resilience handler for HttpClient calls, since it is Polly with HTTP-aware defaults and telemetry in one line. Reach for Polly's ResiliencePipeline directly only when you protect something that is not an HttpClient.
.NET 11 Adds Allocation-Free Deflate and GZip Compression
.NET 11 Preview 4 ships DeflateEncoder, GZipEncoder, and ZLibEncoder plus matching decoders so you can compress straight into a Span<byte> with OperationStatus, no Stream required.