Fill gaps in What's new in Aspire 13.4#1127
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Audit the 13.4 what's new against the full changelog and add notable user-facing items while keeping the existing structure: - New 'More ways to model your app' section: Go (AddGoApp), Blazor WebAssembly (AddBlazorWasmProject/AddBlazorGateway), and Bun (AddBunApp) hosting integrations. - CLI: deployment commands GA, faster startup, and automatic settings.json -> aspire.config.json migration. - App model: persistent executable and project lifetimes (WithPersistentLifetime/WithSessionLifetime). - Azure: WithAcrPullIdentity and stable Azure Container Apps jobs APIs. - Dashboard: structured search/trace duration filtering and waiting-dependency details. - VS Code: Go debugging, multi-AppHost workspaces, AppHost logs viewer, parser-backed detection. - Integrations: RabbitMQ default image 4.2 -> 4.3. - Expanded breaking-changes table and migration steps (WithRoute->WithPath, external endpoints for routes, Foundry WithComputeEnvironment, PublishAsPackageScript, Keycloak HTTPS). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull request overview
This PR updates the “What’s new in Aspire 13.4” page to better reflect notable, user-facing additions and breaking changes from the 13.4 changelog, keeping the existing document structure while filling key gaps.
Changes:
- Adds a new “More ways to model your app” section highlighting new Go, Blazor WebAssembly, and Bun hosting integrations.
- Expands coverage of CLI, AppHost/app model, Azure, Dashboard, and VS Code extension improvements.
- Extends the Breaking changes table and migration checklist with additional 13.4 updates.
Show a summary per file
| File | Description |
|---|---|
| src/frontend/src/content/docs/whats-new/aspire-13-4.mdx | Expands the Aspire 13.4 “What’s new” draft with additional feature highlights and breaking-change migration guidance. |
Copilot's findings
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- Files reviewed: 1/1 changed files
- Comments generated: 8
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| var api = builder.AddGoApp("api", "./api") | ||
| .WithHttpEndpoint(env: "PORT"); |
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| const builder = await createBuilder(); | ||
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| const api = await builder.addGoApp('api', './api'); |
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| ### Blazor WebAssembly hosting | ||
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| The new `Aspire.Hosting.Blazor` integration models standalone Blazor WebAssembly projects in your AppHost. Use `AddBlazorWasmProject` / `addBlazorWasmProject` to add a Blazor WebAssembly project and `AddBlazorGateway` / `addBlazorGateway` to add a browser-facing gateway that serves the hosted app and routes API calls to your backend resources. |
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| var blazorApp = builder.AddBlazorWasmProject("app", "../MyBlazorApp/MyBlazorApp.csproj"); | ||
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| var gateway = builder.AddBlazorGateway("gateway") | ||
| .WithReference(blazorApp); |
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| var api = builder.AddGoApp("api", "./api") | ||
| .WithHttpEndpoint(env: "PORT"); |
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| const builder = await createBuilder(); | ||
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| const api = await builder.addGoApp('api', './api'); |
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| ### Blazor WebAssembly hosting | ||
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| The new `Aspire.Hosting.Blazor` integration models standalone Blazor WebAssembly projects in your AppHost. Use `AddBlazorWasmProject` / `addBlazorWasmProject` to add a Blazor WebAssembly project and `AddBlazorGateway` / `addBlazorGateway` to add a browser-facing gateway that serves the hosted app and routes API calls to your backend resources. |
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| var blazorApp = builder.AddBlazorWasmProject("app", "../MyBlazorApp/MyBlazorApp.csproj"); | ||
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| var gateway = builder.AddBlazorGateway("gateway") | ||
| .WithReference(blazorApp); |
… flagship emojis Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
mitchdenny
reviewed
May 30, 2026
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| - **TypeScript AppHost general availability** with stronger startup validation, more complete TypeScript SDK generation, new TypeScript samples, and documentation parity with C# AppHost examples. | ||
| - **C# and TypeScript AppHosts are first class and supported** with stronger TypeScript startup validation, more complete SDK generation, new TypeScript samples, and documentation parity with C# AppHost examples. | ||
| - **Aspire skills for AI coding agents** with `aspire agent init`, a dedicated deployment skill, and workflow skills distributed through the external [`@microsoft/aspire-skills`](https://www.npmjs.com/package/@microsoft/aspire-skills) npm package. |
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I don't think we are doing an NPM package anymore. For 13.4 we are baking the skills into the CLI but they are still ultimately coming from this repo as part of our build process.
Rephrase as we are now hosting the aspire-skills in the [repo] repo. We integrate the latest skills into new builds of the CLI and in the future we plan to allow for easily updating them even inbetween releases so that we can react quickly when new models ship and we need to fine tune skills.
mitchdenny
reviewed
May 30, 2026
| | `aspire-orchestration` | Manages AppHost lifecycle tasks such as start, stop, wait, restart, and recovery from file locks, port conflicts, or orphaned processes. | | ||
| | `aspireify` | Wires an AppHost after `aspire init` by scanning the repo, proposing a resource graph, editing the AppHost, adding service defaults, and validating with `aspire start`. | | ||
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| The skills are distributed through the external [`@microsoft/aspire-skills`](https://www.npmjs.com/package/@microsoft/aspire-skills) npm package, verified with npm provenance and cached locally, so they can be updated independently of the CLI. |
Member
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I think put a call to action here about the fact that we are now starting to automatically evaluate the skill performance with different models and adjusting the skills continuously. But if you see the agents do something in a sub-optimal way or you have any other feedback place open an issue on microsoft/aspire.
Side question: We are going multi-repo here, I wonder what our strategy is going to be around issue management for microsoft/aspire-skills.
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Audits the existing What's new in Aspire 13.4 draft against the full 13.4 changelog and fills notable user-facing gaps while keeping the existing structure.
What changed
More ways to model your appsection covering the new Go (AddGoApp), Blazor WebAssembly (AddBlazorWasmProject/AddBlazorGateway), and Bun (AddBunApp) hosting integrations. The intro promised a broader app model but only covered TypeScript.aspire publish/aspire deploy) are GA, faster AppHost startup, and automatic.aspire/settings.json->aspire.config.jsonmigration.WithPersistentLifetime()/WithSessionLifetime()).WithAcrPullIdentityand stable Azure Container Apps jobs APIs.WithRoute->WithPath, external endpoints required for routes, FoundryWithComputeEnvironment,PublishAsPackageScript, Keycloak HTTPS).Validation
pnpm build:skip-searchsucceeds: 12,349 pages built and all internal links valid.All added APIs and cross-links were verified against existing docs pages.