Blazor .NET 9 tracking issue

[guardrex]

ASP.NET Core 9: Web UI Milestones

https://github.com/orgs/dotnet/projects/320/views/3

Derived from the 9.0 roadmap

🟢 = Ready      ✔️ = Done      🛑 = Wait on PU to finish      ❌ = No action required

Status	Live	Issue	PR	Item	PU Links/ Blog
✔️	SignalR Security	#31915	#31918	Enable compression on blazorpack	See docs issue for PU cross-links
✔️	Live	#31926	#31927	Constructor injection for Blazor components	Issue PR
✔️	Live	#31916	#32096	Remark on CRIME/BREACH in route param and query string guidance	The Live link is one of three examples (JS interop). The other two appearances are in the Route Params section (Components overview article) and Query Strings (Routing article) sections.
Pre4	[Live]()	—	—	Provide a mechanism for rendering Blazor pages statically even when the app is set up for interactive rendering	Issue 1 Issue 2 PR Post
Pre4	[Live]()	—	—	Authorize attribute with AllowAnonymous	Issue Confirm no changes for section.
Pre5	[Live]()	—	—	Optimize file delivery for web apps	Issue
Pre5	[Live]()	—	—	Add an API to tell you the current render mode	Issue
Pre5	[Live]()	—	—	Add mechanism for interactively-rendered form to submit as HTTP request to SSR endpoint	Issue
Pre5	[Live]()	—	—	Support persistent component state across enhanced page navigations	Issue
Pre5	[Live]()	—	—	Revisit hot reload browser refresh script injection	Issue
Pre5	[Live]()	—	—	Declarative model to serialize state on prerendering with Blazor and restore it on the client	Issue
Pre5	[Live]()	—	—	Add Microsoft Identity Platform auth option to the Blazor Web App template	Issue
Pre6	[Live]()	—	—	Add activities to Blazor Server for distributed tracing	Issue
Pre6	[Live]()	—	—	Better reconnection logic for Blazor Server	Issue
Pre6	[Live]()	—	—	Add Metrics for Blazor	Issue
—	[Live]()	—	—	Append Hashes To Blazor Published Files	Issue Seems to be covered by/related to the preceding file delivery work item.
—	[Live]()	—	—	Move integrity support to the Static Web Assets SDK from the Blazor WebAssembly SDK	Issue Seems to be covered by/related to the preceding file delivery work item.

Moved to .NET 10

• Real multithreading in Blazor WebAssembly | Issue Runtime Issue SEE 👉 Document what's new in ASP.NET Core for .NET 9 Preview 2 #31770 (comment)
• APIs for components to persist state across circuits manually | Issue
• Adding a route to a Blazor component doesn't work with hot reload | Issue
• Ability to set port for browser refresh websocket connection when using dotnet watch | Issue
• Modernize the Blazor Web template | Issue
• Generate modern JS outputs that can be consumed by other JS toolchains (Blazor->JS) | Issue
• When prerendering, emit culture name and use it on WebAssembly side | Issue
• Blazor NavigationManager.NavigateTo always scrolls page to the top | Issue
• Add support to the QuickGrid paginator for static server rendering | Issue

Derived from 8.0 issues/PRs not on the roadmap

🟢 = Ready      ✔️ = Done      🛑 = Wait on PU to finish      ❌ = No action required

Status	Live	Issue	PR	Item	PU Links/ Blog
...	...	...	...	...	...

Other

• xxx
• xxx

9.0 Post GA

Status	Issue	PR	Item
...	...	...	...

Other

Status	Live	Issue	PR	Item	PU Links/ Blog
...	...	...	...	...	...

Blazor Hybrid

Status	Live	Issue	PR	Item	PU Links
...	...	...	...	...	...

Preview announcements

https://github.com/dotnet/aspnetcore/discussions?discussions_q=is%3Aopen+author%3Adanroth27

.NET Blog posts

https://devblogs.microsoft.com/search?query=%22.NET+9%22&blogs=%2Fdotnet%2F&sortby=relevance&search-button=

9.0 preview/RC PU issues for analysis

This section of linked issues is assessed for items that didn't make the roadmap but have a bearing on docs.

• https://github.com/dotnet/aspnetcore/issues?q=is%3Aissue+label%3Aarea-blazor+milestone%3A9.0-preview1
• https://github.com/dotnet/aspnetcore/issues?q=is%3Aissue+label%3Aarea-blazor+milestone%3A9.0-preview2
• https://github.com/dotnet/aspnetcore/issues?q=is%3Aissue+label%3Aarea-blazor+milestone%3A9.0-preview3
• https://github.com/dotnet/aspnetcore/issues?q=is%3Aissue+label%3Aarea-blazor+milestone%3A9.0-preview4
• https://github.com/dotnet/aspnetcore/issues?q=is%3Aissue+label%3Aarea-blazor+milestone%3A9.0-preview5
• https://github.com/dotnet/aspnetcore/issues?q=is%3Aissue+label%3Aarea-blazor+milestone%3A9.0-preview6
• https://github.com/dotnet/aspnetcore/issues?q=is%3Aissue+label%3Aarea-blazor+milestone%3A9.0-preview7
• https://github.com/dotnet/aspnetcore/issues?q=is%3Aissue+label%3Aarea-blazor+milestone%3A9.0-rc1
• https://github.com/dotnet/aspnetcore/issues?q=is%3Aissue+label%3Aarea-blazor+milestone%3A9.0-rc2

.NET 9 Planning

https://github.com/dotnet/aspnetcore/issues?q=is%3Aopen+is%3Aissue+label%3Aarea-blazor+milestone%3A%22.NET+9+Planning%22

Issues to watch 👀 ...

• xxx
• xxx

PU roadmap

ASP.NET Core Roadmap for .NET 9 (dotnet/aspnetcore #51834)