Issues

• Move source-build container to Azure Linux 4 after Arcade trailing-backslash fix

  area-infrastructure
  Task

  dotnet/aspnetcore#70524 · Filter by author richlander opened on Nov 12, 2026
  1

• Harden JS unit-test failure enforcement in Npm.Workspace.nodeproj and AzDO JUnit publishing

  area-infrastructure
  dotnet/aspnetcore#70517 · Filter by author PureWeen opened on Nov 11, 2026
  1

• [OpenTelemetry] Hosting replaces an Activity.DisplayName that the app set, when a route matches

  area-hostingRegression
  Bug

  dotnet/aspnetcore#70516 · Filter by author PetarJerinic opened on Nov 11, 2026
  1

• AccessViolationException crashes w3wp on .NET 11 with IIS in-process hosting (SignalR hub invocation reads local endpoint in IISHttpContext.InitializeLocalEndpoint)

  area-signalr
  Bug

  dotnet/aspnetcore#70515 · Filter by author almostEric opened on Nov 11, 2026
  3

• Blazor Interop with Typescript

  area-blazor
  Feature

  dotnet/aspnetcore#70514 · Filter by author ghorner2 opened on Nov 11, 2026
  1

• Blazor browser options are ignored or applied incorrectly

  area-blazor
  Bug

  dotnet/aspnetcore#70510 · Filter by author ilonatommy opened on Nov 11, 2026
  1

• Query-component validation (#68320) not backported to release/10.0: HTTP/2 :path query with SP/HTAB/CTL still accepted on .NET 10 LTS

  area-networking
  Task

  dotnet/aspnetcore#70508 · Filter by author HuyTran2503 opened on Nov 11, 2026

• OutputCache with locking should ensure the response is fully written in memory first

  area-middlewarefeature-output-caching
  Bug

  dotnet/aspnetcore#70506 · Filter by author Youssef1313 opened on Nov 11, 2026
  1

• missing Microsoft.AspNetCore.Razor.Runtime.xml in aspnetcore build

  area-infrastructurebuguntriaged
  dotnet/aspnetcore#70507 · Filter by author corngood opened on Nov 11, 2026
  1

• Apache RewriteCond negation is incorrectly applied to string and integer comparisons

  area-middleware
  Bug

  dotnet/aspnetcore#70505 · Filter by author mauroa opened on Nov 11, 2026
  1

• Inserting a MarkupString with many top-level nodes is quadratic since .NET 11 (insertLogicalChild orphan scan)

  area-blazorperformanceRegression
  Bug

  dotnet/aspnetcore#70503 · Filter by author Daeer-Projects opened on Nov 11, 2026
  1

  

• Re-enable Web Worker template tests after runtime JSExport fix flows

  area-blazortest-failure
  dotnet/aspnetcore#70502 · Filter by author akoeplinger opened on Nov 11, 2026 · 12.0-preview1
  1

  

• Investigate SSR/interactive inconsistencies in table structure and select defaults

  area-blazor
  dotnet/aspnetcore#70498 · Filter by author ilonatommy opened on Nov 11, 2026 · Backlog
  1

• Open redirect fix #66961 not backported to release/10.0: scheme-relative Location still emitted on .NET 10 LTS

  area-middleware
  Bug

  dotnet/aspnetcore#70493 · Filter by author HuyTran2503 opened on Nov 11, 2026 · 10.0.x
  3

  

• BL0014 analyser (ForLoopIteratorInClosureAnalyzer) throws NullReferenceException (AD0001) when an array value is passed to an attribute after a @for loop

  area-blazor
  Bug

  dotnet/aspnetcore#70492 · Filter by author davidnmbond opened on Nov 11, 2026
  1

  

• [release/11.0] Quarantine server window-scroll true/true row: initial item is missing

  area-blazortest-failure
  dotnet/aspnetcore#70462 · Filter by author wtgodbe opened on Nov 10, 2026
  1

• Two MapRazorComponents roots map the framework's internal endpoints twice: AmbiguousMatchException on hot-reload-settings.json (.NET 11) and opaque-redirect

  area-blazor
  Bug

  dotnet/aspnetcore#70461 · Filter by author lahma opened on Nov 10, 2026
  1

  

• Minimal APIs: a C# union of IResult cases is serialized as JSON with 200 instead of executing the active case

  area-minimal
  Bug

  dotnet/aspnetcore#70454 · Filter by author HaikAsatryan opened on Nov 10, 2026 · .NET 12 Planning
  1

• Microsoft.Extensions.ApiDescription.Server version 10.0.15 throws TypeInitializationException on build

  area-commandlinetools
  Bug

  dotnet/aspnetcore#70439 · Filter by author codingfreak opened on Nov 10, 2026
  2

• [API Proposal] Span-based formatting for ContentDispositionHeaderValue

  api-proposalapi-suggestionarea-networkingperformance
  Feature

  dotnet/aspnetcore#70435 · Filter by author DeagleGross opened on Nov 10, 2026
  1

• Introduce generated discovery and application composition for Blazor

  area-blazorNativeAOT
  Feature

  dotnet/aspnetcore#70434 · Filter by author javiercn opened on Nov 10, 2026 · .NET 12 Planning
  2

• Make Blazor component descriptor serialization Native AOT and trimming compatible

  area-blazorNativeAOT
  Feature

  dotnet/aspnetcore#70432 · Filter by author javiercn opened on Nov 10, 2026 · .NET 12 Planning
  1

• Integrate persistent component state with the Blazor serialization contract

  api-proposalarea-blazorNativeAOT
  Feature

  dotnet/aspnetcore#70431 · Filter by author javiercn opened on Nov 10, 2026 · .NET 12 Planning
  1

• Make Blazor session value serialization Native AOT and trimming compatible

  area-blazorNativeAOT
  dotnet/aspnetcore#70430 · Filter by author javiercn opened on Nov 10, 2026 · .NET 12 Planning
  1

• Make Blazor TempData value serialization Native AOT and trimming compatible

  area-blazorNativeAOT
  dotnet/aspnetcore#70428 · Filter by author javiercn opened on Nov 10, 2026 · .NET 12 Planning
  1