.NET 10 Preview 2 Release Notes (#9769)

* start preview 2 release notes

* Add feature section to WPF release notes

Fix linter issue

* updates for linter

* updates

* add release notes for efcore

* small fix to the fixed bugs link

* typo

* added mention of another improvement

* .NET MAUI in 10 preview 2

Starting the release notes gathering here. @dalexsoto @rolfbjarne @jonpryor @PureWeen @Redth please contribute.

* Add ExportPkcs12 blurb

* Fix bad newlines from Copilot Workspace

* add release note about SDK noun-first command forms

* Update known issues to include ARM64 Windows hosting bundle upgrade break (#9783)

* Update known issues to include ARM64 Windows hosting bundle upgrade break

* Apply suggestions from code review

Co-authored-by: Daniel Roth <daroth@microsoft.com>

* Add ASP.NET Core updates for .NET 10 Preview 2 (#9801)

* Add ASP.NET Core updates for .NET 10 Preview 2

* Update release-notes/10.0/preview/preview2/aspnetcore.md

Co-authored-by: Martin Costello <martin@martincostello.com>

* Add Blazor reconnection UI component

* Add remaining Blazor features

* Edits

* Update release-notes/10.0/preview/preview2/aspnetcore.md

Co-authored-by: Safia Abdalla <safia@microsoft.com>

* Update release-notes/10.0/preview/preview2/aspnetcore.md

Co-authored-by: Safia Abdalla <safia@microsoft.com>

* Update release-notes/10.0/preview/preview2/aspnetcore.md

Co-authored-by: Safia Abdalla <safia@microsoft.com>

* Update release-notes/10.0/preview/preview2/aspnetcore.md

Co-authored-by: Luke Latham <1622880+guardrex@users.noreply.github.com>

* Update release-notes/10.0/preview/preview2/aspnetcore.md

Co-authored-by: Luke Latham <1622880+guardrex@users.noreply.github.com>

* Update release-notes/10.0/preview/preview2/aspnetcore.md

Co-authored-by: Luke Latham <1622880+guardrex@users.noreply.github.com>

* Update release-notes/10.0/preview/preview2/aspnetcore.md

Co-authored-by: Luke Latham <1622880+guardrex@users.noreply.github.com>

* Update release-notes/10.0/preview/preview2/aspnetcore.md

* Update release-notes/10.0/preview/preview2/aspnetcore.md

Co-authored-by: Luke Latham <1622880+guardrex@users.noreply.github.com>

* Update release-notes/10.0/preview/preview2/aspnetcore.md

Co-authored-by: Luke Latham <1622880+guardrex@users.noreply.github.com>

* Add ShouldMatch code snippet

* Update release-notes/10.0/preview/preview2/aspnetcore.md

Co-authored-by: Wade Pickett <wpickett@microsoft.com>

* Update release-notes/10.0/preview/preview2/aspnetcore.md

Co-authored-by: Wade Pickett <wpickett@microsoft.com>

---------

Co-authored-by: Martin Costello <martin@martincostello.com>
Co-authored-by: Safia Abdalla <safia@microsoft.com>
Co-authored-by: Luke Latham <1622880+guardrex@users.noreply.github.com>
Co-authored-by: Wade Pickett <wpickett@microsoft.com>

* Add containers release notes for 10.0 Preview 2 (#9796)

* Add containers release notes for 10.0 Preview 2

* Fix run-on-sentence

Co-authored-by: Matt Thalman <mthalman@microsoft.com>

---------

Co-authored-by: Matt Thalman <mthalman@microsoft.com>

* WinForms Preview 2 Release Notes (#9787)

* Preview 2

* Fix typo

* Update query

* Review feedback

* extra line

* Fixing errors

* Initial version C# P2 blog post (#9795)

* Initial version C# P2 blog post

* Apply suggestions from code review

Co-authored-by: Bill Wagner <wiwagn@microsoft.com>

* updat ename of file

* Update release-notes/10.0/preview/preview2/csharp.md

---------

Co-authored-by: James Montemagno <james.montemagno@gmail.com>
Co-authored-by: Bill Wagner <wiwagn@microsoft.com>

* Preview 2 release notes for WPF (#9805)

* Update wpf.md

* Add missing period.

* cleanup

* cleanup

* Add .NET 10 Preview 2 release notes -- Libraries and Runtime (#9770)

* Start runtime and library release notes

* Add JIT notes

* Update benchmarks

* Fix array de-abstraction intro

* Update release-notes/10.0/preview/preview2/runtime.md

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Co-authored-by: Aman Khalid <amankhalid@microsoft.com>

* MAUI in 10 preview 2 (#9782)

* MAUI in 10 preview 1

* what's new for maui

thanks davidbritch for capturing these

* Update URLs for macios release notes

* Final polishing

---------

Co-authored-by: Alex Soto <alex@soto.dev>
Co-authored-by: Rachel Kang <rachel.j.kang@gmail.com>

* updates

* updates to readme

* update readme

* tweaks to mds

* enhacne tables

* lint cleanup

* Updating 10.0 PReview files

* Update releases-index.json

* updates

---------

Co-authored-by: Rich Lander <rlander@microsoft.com>
Co-authored-by: maumar <maumar@microsoft.com>
Co-authored-by: David Ortinau <david.ortinau@microsoft.com>
Co-authored-by: Jeremy Barton <jbarton@microsoft.com>
Co-authored-by: Chet Husk <chusk3@gmail.com>
Co-authored-by: Stephen Halter <halter73@gmail.com>
Co-authored-by: Daniel Roth <daroth@microsoft.com>
Co-authored-by: Martin Costello <martin@martincostello.com>
Co-authored-by: Safia Abdalla <safia@microsoft.com>
Co-authored-by: Luke Latham <1622880+guardrex@users.noreply.github.com>
Co-authored-by: Wade Pickett <wpickett@microsoft.com>
Co-authored-by: Logan Bussell <loganbussell@microsoft.com>
Co-authored-by: Matt Thalman <mthalman@microsoft.com>
Co-authored-by: Merrie McGaw <mmcgaw@microsoft.com>
Co-authored-by: Kathleen Dollard <kdollard@microsoft.com>
Co-authored-by: Bill Wagner <wiwagn@microsoft.com>
Co-authored-by: Andy (Steve) De George <67293991+adegeo@users.noreply.github.com>
Co-authored-by: Aman Khalid <amankhalid@microsoft.com>
Co-authored-by: Alex Soto <alex@soto.dev>
Co-authored-by: Rachel Kang <rachel.j.kang@gmail.com>
Co-authored-by: Rahul Bhandari (.NET) <rbhanda@microsoft.com>

release-notes/10.0/README.md

@@ -16,39 +16,40 @@ It is currently in development and not supported. .NET 10 is expected to be rele
 
 | Date | Release |
 | :-- | :-- |
+| 2025/03/18 | [10.0.0 Preview 2](preview/preview2/README.md) |
 | 2025/02/25 | [10.0.0 Preview 1](preview/preview1/README.md) |
 
 ### .NET Libraries
 
 - [What's new in .NET 10 libraries](https://learn.microsoft.com/dotnet/core/whats-new/dotnet-10/overview#net-libraries)
-- [Preview 1](preview/preview1/libraries.md)
+- [Preview 2](preview/preview2/libraries.md)
 
 ### .NET Runtime
 
 - [What's new in the .NET 10 runtime](https://learn.microsoft.com/dotnet/core/whats-new/dotnet-10/runtime)
-- [Preview 1](preview/preview1/runtime.md)
+- [Preview 2](preview/preview2/runtime.md)
 
 ### .NET SDK
 
 - [What's new in the SDK for .NET 10](https://learn.microsoft.com/dotnet/core/whats-new/dotnet-10/sdk)
-- [Preview 1](preview/preview1/sdk.md)
+- [Preview 2](preview/preview2/sdk.md)
 
 ### C\#
 
 - [What's new in C# 14](https://learn.microsoft.com/dotnet/csharp/whats-new/csharp-14)
-- [Preview 1](preview/preview1/csharp.md)
+- [Preview 2](preview/preview2/csharp.md)
 
 ### ASP.NET Core
 
 - [What's new in ASP.NET Core 10.0](https://learn.microsoft.com/aspnet/core/release-notes/aspnetcore-10.0)
-- [Preview 1](preview/preview1/aspnetcore.md)
+- [Preview 2](preview/preview2/aspnetcore.md)
 
 ### .NET MAUI
 
 - [What's new in .NET MAUI for .NET 10](https://learn.microsoft.com/dotnet/maui/whats-new/dotnet-10)
-- [Preview 1](preview/preview1/dotnetmaui.md)
+- [Preview 2](preview/preview2/dotnetmaui.md)
 
 ### Entity Framework Core
 
 - [What's new in EF Core 10](https://learn.microsoft.com/ef/core/what-is-new/ef-core-10.0/whatsnew)
-- [Preview 1](preview/preview1/efcore.md)
+- [Preview 2](preview/preview2/efcore.md)