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dotnet · dotnet/aspire · v13.4.0Critical

dotnet/aspire v13.4.0: TypeScript AppHost GA, aspire ps breaking change, Foundry API update

TypeScript AppHost is now GA; experimental markers removed.

09 Jun 2026Read 1 minSeverity: act now

What changed

TypeScript AppHost is now GA; experimental markers removed. `aspire ps` no longer includes raw resource data. Foundry hosted agent builder API shape updated. `Aspire.Hosting.Blazor` is preview-versioned in 13.4.

Who it affects

Developers using Aspire with TypeScript AppHost, Foundry hosted agents, or the `aspire ps` command; users of `Aspire.Hosting.Blazor`.

What to do today

Update scripts relying on `aspire ps` raw output to use `aspire describe` instead. Update Foundry agent builder code to match new API signatures. Note that `Aspire.Hosting.Blazor` is preview-only in 13.4.

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