Microsoft Aspire 13.6 Adds Persistent Dashboard Telemetry, Java and Rust Hosting

Dashboard Enhancements

Aspire 13.6 introduces persistent telemetry and run history to its dashboard, storing resource snapshots and telemetry in a SQLite database. This feature retains up to ten runs per application by default when started by an AppHost, with completed runs being read-only. Microsoft notes that the database lacks encryption or authorization layers and does not set Windows ACLs on the data directory.

Console logs, structured logs, and traces now have increased default limits of 100,000 each. The dashboard itself is now shipped as a Native AOT executable and utilizes Fluent UI Blazor v5.

New Developer Tools

AppHosts can now open their own terminals within a dashboard dock via the experimental TerminalService API. A new WithRepl option is available for PostgreSQL, MySQL, MongoDB, SQL Server, Redis, and Valkey resources, opening a bundled client. These REPLs use real credentials and are disabled by default, requiring developer opt-in.

Expanded Language Support

Four new prerelease hosting integrations are included. Aspire.Hosting.Java supports executable JARs, Maven and Gradle wrappers, Spring Boot, and Quarkus. Aspire.Hosting.Rust models Cargo applications through AddRustApp. Both integrations build on work from the Aspire Community Toolkit.

Azure and Build System Updates

Azure Connector Namespace and Azure Container Apps Sandboxes are added, both requiring preview access in the Azure subscription. The AddDotnetProject function now places compatible projects into shared restore and build groups to prevent repeated restores. Volume mounts on projects and executables accept a new 'env' argument, allowing applications to read a single environment variable for data paths locally and after deployment.

TypeScript AppHosts now load appsettings.json from their own directory, and Deno 2 or later can run the TypeScript AppHost. The CLI also gains a --launch-profile option for aspire run commands.