Aspire 13.5.4 is now available
The dotnet/aspire repository published v13.5.4 on 2026-09-15. The release notes list changes including: 📨 Kafka health checks leaked producers and polling threads — Each AppHost health-check execution created a new Kafka producer without disposing it…; 🌐 DevTunnels could fail when the region was….
What was released From the source
dotnet/aspire published v13.5.4 on GitHub on 2026-09-15. Items listed in the release notes include:
- 📨 Kafka health checks leaked producers and polling threads — Each AppHost health-check execution created a new Kafka producer without disposing it…
- 🌐 DevTunnels could fail when the region was selected automatically — Tunnel setup and health checks now use the cluster-qualified tunnel ID returned by the…
- ☁️ Emulator-only AppHosts showed an unused Azure environment — The dashboard now hides the azure-environment resource when no Azure resources require cloud…
- 🧩 Starter app generation could alter unrelated JavaScript values — Dynamic port replacement could also replace matching numeric literals in bundled…
- 🍎 Updated the Aspire Homebrew cask for Homebrew 6.x — Replaced deprecated cask URL and post-install syntax with the supported equivalents, resolving…
- 🧪 Radius cloud-provider callback interfaces now carry the experimental diagnostic — IAwsRadiusProviderBuilder and IAzureRadiusProviderBuilder are now marked…
At a glance · Runtime & Platform
What was releasedWhy it mattersWho should careUpgrade considerations
Why it matters Analysis
Changes to the .NET runtime, libraries and application frameworks shape performance, compatibility and the features available to every .NET application. Following them helps teams plan upgrades and adopt improvements deliberately.
Who should care Analysis
- .NET application developers
- Library and framework authors
- Teams planning .NET version upgrades
Upgrade considerations Analysis
- Read the complete release notes for breaking changes and known issues.
- Update the relevant NuGet packages in a branch and run your tests before merging.
- Try new features or previews in a test project first.
- Check the .NET breaking-changes documentation before upgrading major versions.
Sources and further reading
- Release notes for v13.5.4 on GitHub (original source)
Original: “Aspire 13.5.4”, Aspire releases, published 15 Sep 2026, retrieved 16 Oct 2026. This article was generated from the official source using our structured templates and passed automated quality checks. Spotted a mistake? See our corrections policy.