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ASP.NET Core roadmap for .NET 11
#64787 · danroth27 opened on Dec 16, 2025
[pr-attention-pulse] ASP.NET Core PR Attention Pulse
#69328 · PureWeen opened on Sep 15, 2026

runtime version on startup
Feature
dotnet/aspnetcore#69951 · opened on Oct 20, 2026
1
SignalR on IIS in-process reads the local endpoint of a completed long polling request (AccessViolationException in w3wp, 11.0 RC2)
Bug
dotnet/aspnetcore#69948 · opened on Oct 20, 2026
1
Nullable type param warns on use with other parameters (razor components)
Bug
dotnet/aspnetcore#69947 · opened on Oct 20, 2026
2
Make Microsoft.AspNetCore.Components.WebView trim/NativeAOT compatible
dotnet/aspnetcore#69946 · opened on Oct 20, 2026
2
OpenAPI: required is not emitted for properties of a [FromForm] complex type in MVC controllers
Bug
dotnet/aspnetcore#69943 · opened on Oct 20, 2026
1
Clarify rate-limiter ordering with UseStatusCodePagesWithReExecute
Task
dotnet/aspnetcore#69942 · opened on Oct 20, 2026
1
Identity API /manage/2fa returns success when a concurrent update prevents saving changes
Bug
dotnet/aspnetcore#69941 · opened on Oct 20, 2026
1
Microsoft.Extensions.Caching.SqlServer 11.0.0 RC still includes unused Azure.Identity
dotnet/aspnetcore#69939 · opened on Oct 20, 2026
1
[API Proposal] Ensure SSR scopes use HttpNavigationManager and interactive server scopes use RemoteNavigationManager
Feature
dotnet/aspnetcore#69938 · opened on Oct 20, 2026
1
[Blazor] Reconnect UI stuck for good (no further attempts, no Retry) after an attempt whose ConnectCircuit or ResumeCircuit invocation throws
Bug
dotnet/aspnetcore#69931 · opened on Oct 19, 2026
1
[API Proposal] Add URL and URLSearchParams browser platform APIs
Feature
dotnet/aspnetcore#69924 · opened on Oct 19, 2026 · .NET 12 Planning
5
[API Proposal] Add browser event listeners to the typed browser platform APIs for Blazor
Feature
dotnet/aspnetcore#69922 · opened on Oct 19, 2026 · .NET 12 Planning
MEV should respect JsonConstructorAttribute
Bug
dotnet/aspnetcore#69919 · opened on Oct 19, 2026
1
Blazor ErrorBoundary clears ErrorContent after Recover when throwing component is nested
Bug
dotnet/aspnetcore#69913 · opened on Oct 18, 2026 · Backlog
1
AutoPause JS initializer has no fingerprinted endpoint, so it is revalidated on every page load
Bug
dotnet/aspnetcore#69912 · opened on Oct 17, 2026 · .NET 12 Planning
2
JsonPatch: move still adds the value at path when removing it from from failed
Bug
dotnet/aspnetcore#69904 · opened on Oct 16, 2026
1
JsonPatch (Newtonsoft.Json): values are converted under the ContractResolver alone, and the converter's error is swallowed
Bug
dotnet/aspnetcore#69903 · opened on Oct 16, 2026
1
JsonPatch (Newtonsoft.Json): copy, test and dictionary keys ignore the document's ContractResolver
Bug
dotnet/aspnetcore#69902 · opened on Oct 16, 2026
1
Blazor static form mapping: an empty field cannot bind null to a nullable custom IParsable<T> struct
Bug
dotnet/aspnetcore#69901 · opened on Oct 16, 2026 · Backlog
1
RouteView keeps a stale Body when a page that was a layout becomes the routed page, rendering it twice
Bug
dotnet/aspnetcore#69900 · opened on Oct 16, 2026 · Backlog
1
Harden JWT-formatted OpenID Connect UserInfo responses
Feature
dotnet/aspnetcore#69895 · opened on Oct 16, 2026
1
Allow overriding SupportedCultures when so desired
Feature
dotnet/aspnetcore#69887 · opened on Oct 16, 2026
1
Add WebSocket, EventSource, and sendBeacon APIs
Task
dotnet/aspnetcore#69885 · opened on Oct 16, 2026 · .NET 12 Planning
Add MessageChannel and BroadcastChannel support
Task
dotnet/aspnetcore#69884 · opened on Oct 16, 2026 · .NET 12 Planning
Add AbortController and AbortSignal support
Task
dotnet/aspnetcore#69883 · opened on Oct 16, 2026 · .NET 12 Planning

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Issues

Issues

runtime version on startup

SignalR on IIS in-process reads the local endpoint of a completed long polling request (AccessViolationException in w3wp, 11.0 RC2)

Nullable type param warns on use with other parameters (razor components)

Make Microsoft.AspNetCore.Components.WebView trim/NativeAOT compatible

OpenAPI: `required` is not emitted for properties of a `[FromForm]` complex type in MVC controllers

Clarify rate-limiter ordering with `UseStatusCodePagesWithReExecute`

Identity API `/manage/2fa` returns success when a concurrent update prevents saving changes

Microsoft.Extensions.Caching.SqlServer 11.0.0 RC still includes unused Azure.Identity

[API Proposal] Ensure SSR scopes use HttpNavigationManager and interactive server scopes use RemoteNavigationManager

[Blazor] Reconnect UI stuck for good (no further attempts, no Retry) after an attempt whose ConnectCircuit or ResumeCircuit invocation throws

[API Proposal] Add URL and URLSearchParams browser platform APIs

[API Proposal] Add browser event listeners to the typed browser platform APIs for Blazor

MEV should respect JsonConstructorAttribute

Blazor ErrorBoundary clears ErrorContent after Recover when throwing component is nested

AutoPause JS initializer has no fingerprinted endpoint, so it is revalidated on every page load

JsonPatch: `move` still adds the value at `path` when removing it from `from` failed

JsonPatch (Newtonsoft.Json): values are converted under the `ContractResolver` alone, and the converter's error is swallowed

JsonPatch (Newtonsoft.Json): `copy`, `test` and dictionary keys ignore the document's `ContractResolver`

Blazor static form mapping: an empty field cannot bind `null` to a nullable custom `IParsable<T>` struct

RouteView keeps a stale Body when a page that was a layout becomes the routed page, rendering it twice

Harden JWT-formatted OpenID Connect UserInfo responses

Allow overriding SupportedCultures when so desired

Add WebSocket, EventSource, and sendBeacon APIs

Add MessageChannel and BroadcastChannel support

Add AbortController and AbortSignal support