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[release-notes] .NET 11 RC 1 - #10541

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[release-notes] .NET 11 RC 1#10541
danroth27 wants to merge 9 commits into
mainfrom
release-notes/11.0-rc1

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@danroth27

@danroth27 danroth27 commented Aug 28, 2026

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Summary

  • add the authoritative Preview 7 to RC 1 shipped-change manifest
  • add scored feature candidates and exact build metadata for the current RC 1 branch head
  • add the reader-facing RC 1 release-notes index

Build provenance

  • Base: v11.0.0-preview.7.26381.103
  • Head: origin/release/11.0.1xx-rc1
  • Runtime: 11.0.0-rc.1.26427.112
  • SDK: 11.0.100-rc.1.26427.112

The RC 1 branch is still moving, so these artifacts will be refreshed against the final tag before publication.

Component PRs

Component PR
Libraries #10542
Runtime #10543
SDK #10544
MSBuild #10545
NuGet #10546
C# #10547
F# #10548
Entity Framework Core #10549
Windows Forms #10550
WPF #10551
.NET MAUI #10552
Container images #10553
ASP.NET Core #10554

Copilot AI and others added 9 commits August 28, 2026 02:43
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5
* Add .NET 11 RC 1 C# release notes

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Correct safety example

Correct the `unsafe` example to add an internal block in the `unsafe` method, and describe the `updated-memory-safety-rules` feature flag.

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Bill Wagner <wiwagn@microsoft.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5
* Add .NET 11 RC 1 NuGet release notes

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Document NuGet library target framework change

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 65d41225-7693-4745-8869-57212bee0edc

* Remove unnecessary paragraph

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Chet Husk <chusk3@gmail.com>
Co-authored-by: Chet Husk <baronfel@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5
Copilot-Session: 65d41225-7693-4745-8869-57212bee0edc
* Add .NET 11 RC 1 MSBuild release notes

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Refine .NET 11 RC1 MSBuild notes

Document MSBuildProvideItemGlobs, use a safe tar output path, and remove internal editorial content.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: e8e08e81-0c09-4183-b359-a235ad6bd49c

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Chet Husk <chusk3@gmail.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5
Copilot-Session: e8e08e81-0c09-4183-b359-a235ad6bd49c
* Add .NET 11 RC 1 SDK release notes

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Document mobile app testing with dotnet test

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f2d49957-0a3a-4877-9f4b-7f74f9c62b23

* Expand .NET 11 RC 1 SDK release notes

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 266ffd67-5179-4b52-b834-9c01b5bc045b

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Jonathan Peppers <jonathan.peppers@microsoft.com>
Co-authored-by: Chet Husk <chusk3@gmail.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5
Copilot-Session: f2d49957-0a3a-4877-9f4b-7f74f9c62b23
Copilot-Session: 266ffd67-5179-4b52-b834-9c01b5bc045b
* Add .NET 11 RC 1 ASP.NET Core release notes

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Tighten RC 1 ASP.NET Core availability claims

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Mark DirectTls as experimental

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Remove unofficial sample links from ASP.NET Core notes

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Document RC 1 preview API migrations

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Document SignalR TypeScript authentication refresh

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Split SignalR authentication refresh updates

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Remove SignalR hardening PR from feature references

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Link RC 1 ASP.NET Core backport PRs

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Remove interim build guidance

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Clarify Blazor authentication refresh setup

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Correct Blazor authentication refresh defaults

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Reference default Blazor auth refresh change

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Expand obsolete OpenAPI example

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Add missing ASP.NET Core contributor

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Expand experimental DirectTls guidance

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Simplify DirectTls setup example

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Correct DBSC package availability

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Correct Components.AI package availability

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Add prerelease ASP.NET Core package updates

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Clarify experimental DBSC support

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Refine DBSC release note terminology

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Clarify experimental package versions

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Link DBSC browser implementation details

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Group experimental ASP.NET Core features

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Expand experimental Blazor AI components

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Add Blazor AI component screenshots

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5

* Update ASP.NET Core RC1 release notes

Add the Identity registration breaking change and Negotiate TLS channel binding improvement, and normalize RC1 terminology.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Clarify Identity UI breaking change

Use wording that covers the default ASP.NET Core Identity UI implementations across Razor Pages and Blazor.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Move Blazor AI experimental warning

Place the package warning directly below the section heading.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Simplify Blazor AI rich text notes

Demonstrate the structured rich text API directly and defer end-to-end Markdown parser integration to a later release.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Remove Blazor AI rich text screenshot

Drop the image that implies agentic UI capabilities beyond the simplified RC1 feature scope.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: a851ab96-8780-407d-97d0-50eed422ead5
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2 participants