Release Notes
Latest releases across the .NET ecosystem, aggregated from official GitHub repositories.
- september 2026
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29 Sep 2026
Stable
.NET Aspire — Aspire 13.6.0
Aspire 13.6.0 Aspire 13.6 brings persistent application history, a refreshed and more interactive dashboard, first-party Java and Rust hosting, and new Azure deployment options. Coordinated .NET builds, portable volume paths, sharper CLI workflows, and more capable editor tooling make it easier to build, debug, and deploy applications across languages. Highlights - 🗃️ Persistent, refreshed dashboard — SQLite-backed telemetry and resource snapshots let you revisit up to ten application runs,...
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15 Sep 2026
Stable
.NET Aspire — Aspire 13.5.4
What's New in Aspire 13.5.4 Patch release for Aspire 13.5 that fixes Kafka health-check resource leaks, DevTunnel errors with automatically selected regions, misleading Azure emulator dashboard entries, and unintended changes to generated starter apps, plus Homebrew compatibility and Radius API diagnostic updates. 🐛 Fixes - 📨 Kafka health checks leaked producers and polling threads — Each AppHost health-check execution created a new Kafka producer without disposing it, accumulating backgro...
- august 2026
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25 Aug 2026
Stable
.NET Aspire — Aspire 13.5.3
What's New in Aspire 13.5.3 Patch release for Aspire 13.5 that fixes Dashboard Graph view crashes for resources with multi-path icons and restores missing public URLs for DevTunnel resources. 🐛 Fixes - 📊 Dashboard Graph view could crash for Azure Blob resources — Resources such as those created with AddBlobs use icons containing multiple SVG paths, which caused an XML parsing exception and broke the dashboard circuit. The graph now combines multi-path icons correctly. Regression introduced...
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21 Aug 2026
Stable
.NET Aspire — Aspire 13.5.2
What's New in Aspire 13.5.2 Patch release for Aspire 13.5 that removes an unused native helper binary from the Windows CLI archives so 13.5 servicing releases stay publishable to WinGet. 🐛 Fixes - 🪟 Windows CLI archives shipped an unused ~4.9 MB hex1bpty.exe — The Windows CLI archives (aspire-cli-win-{x64,arm64}-.zip) bundled Hex1b's out-of-process PTY host, which Aspire never executes (DCP owns every pseudo-terminal Aspire surfaces). Besides the wasted download, the extra unexplained ...
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21 Aug 2026
Stable
.NET Aspire — Aspire 13.5.1
What's New in Aspire 13.5.1 Patch release for Aspire 13.5 fixing a TypeScript/Java polyglot AppHost compatibility regression when running the 13.5 SDK under an older (13.4.x) CLI, plus a DCP update and release-pipeline housekeeping. 🐛 Fixes - 🍎 Polyglot AppHosts could crash on startup on macOS — On macOS, polyglot (TypeScript/Python/Java/Go/Rust) AppHosts could crash during startup due to an interaction between how DCP's Go runtime forks detached processes and how .NET Native AOT install...
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18 Aug 2026
Stable
.NET Aspire — Aspire 13.5.0
Aspire 13.5.0 Aspire 13.5 is a developer-experience release focused on a richer, more interactive AppHost, closer C and TypeScript parity, sharper tooling, more flexible deployment modeling, and a broad set of runtime-stability improvements. Highlights - 💬 Richer AppHost interactions — The Interaction Service now works across C and TypeScript AppHosts with stable prompts and dynamic inputs, file uploads, progress dialogs, notifications, and user-defined resource command arguments that surfa...
- june 2026
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20 Jun 2026
Stable
.NET Aspire — Aspire 13.4.6
What's New in Aspire 13.4.6 Patch release for Aspire 13.4 fixing polyglot AppHost code generation binding when CLI and SDK versions diverge, resource service port collision in --isolated mode, and a MongoDB.Driver dependency update. 🐛 Fixes - 🔗 Polyglot AppHost code generation silently failed when CLI and SDK versions diverged — Aspire.TypeSystem used a floating strong-name AssemblyVersion that changed with every build. When the installed Aspire CLI was built at a different version than th...
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17 Jun 2026
Stable
.NET Aspire — Aspire 13.4.5
What's New in Aspire 13.4.5 Patch release for Aspire 13.4 clearing a transitive MessagePack security advisory, tightening CLI validation for Playwright configuration, and adding coding-agent detection to CLI telemetry. 🐛 Fixes - 🛡️ Bumped StreamJsonRpc to 2.25.29 to clear the MessagePack GHSA-hv8m-jj95-wg3x (CVE-2026-48109) NU1903 advisory — The transitive MessagePack 2.5.192 dependency pulled in via StreamJsonRpc 2.22.23 fell within the advisory's vulnerable LZ4 decompression range. Aspir...
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15 Jun 2026
Stable
.NET Aspire — Aspire 13.4.4
What's New in Aspire 13.4.4 Patch release for Aspire 13.4 with improved DCP connection reliability during request execution and consistent ExcludeFromMcp() filtering across all CLI MCP tools. 🐛 Fixes 🔌 DCP requests could fail permanently when the connection dropped mid-request — If the underlying DCP channel closed while a request was in flight, the error was surfaced directly instead of being retried. Reconnection is now attempted as part of the DCP request retry path so transient disc...
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08 Jun 2026
Stable
.NET Aspire — Aspire 13.4.3
What's New in Aspire 13.4.3 Patch release for Aspire 13.4 with a fix for persistent container endpoint allocation regressions introduced in 13.4. 🐛 Fixes - 🔌 Persistent container endpoints had incorrect default behavior — Persistent containers were defaulting to proxyless endpoint behavior instead of the proxied behavior used by normal containers. This caused integrations that depend on endpoint allocation before resource startup (such as the KeyVault emulator) to fail. Persistent containe...