lemonade-sdk/lemonade v11.5.0 on GitHub

Headline

The Lemonade Router is complete: name a collection.router model and requests are steered by rule, classifier, semantic-similarity, or LLM-as-router policies, with per-candidate decision traces, a GUI for authoring and editing routers, and a POST /v1/classify text-classification endpoint backed by a new onnxruntime backend.
ModelScope is now searchable alongside Hugging Face in the Model Manager, with source-aware model discovery, download, and registration.
A server-side job engine lets clients post multi-step recipes and manage them through /jobs endpoints, with pause, interrupt, resume, and delete lifecycle control.
lemond can act as an MCP client host, connecting to external stdio MCP servers and discovering their tools through admin-gated /internal/mcp/* endpoints.
The lemonade CLI now supports HTTPS/TLS connections to secure remote endpoints, honoring http(s):// schemes in LEMONADE_HOST.

Breaking Changes

The server no longer sends Access-Control-Allow-Origin: * by default: non-loopback browser origins are now rejected with 403 unless listed in LEMONADE_ALLOWED_ORIGINS, and the WebSocket same-origin fallback has been removed. Remote or LAN browser clients must set LEMONADE_ALLOWED_ORIGINS.

Lemonade Server

Operating System	Downloads
Windows	lemonade.msi
Ubuntu 24.04+	Launchpad PPA
Debian 13 (x86_64)	lemonade-server_11.5.0-debian13_amd64.deb
Debian 13 (ARM64)	lemonade-server_11.5.0-debian13_arm64.deb
Fedora 43 (x86_64)	lemonade-server-11.5.0-fc43.x86_64.rpm
Fedora 43 (ARM64)	lemonade-server-11.5.0-fc43.aarch64.rpm
Fedora 44 (x86_64)	lemonade-server-11.5.0-fc44.x86_64.rpm
Fedora 44 (ARM64)	lemonade-server-11.5.0-fc44.aarch64.rpm
macOS	Lemonade-11.5.0-Darwin.pkg

Other platforms? See our Installation Options for Docker, Snap, Arch, Debian, and more.

Embeddable Lemonade

Portable binaries for bundling into your own installer. Run lemond ./ as a subprocess.

Platform	Download
Ubuntu x64	lemonade-embeddable-11.5.0-ubuntu-x64.tar.gz
Ubuntu arm64	lemonade-embeddable-11.5.0-ubuntu-arm64.tar.gz
Windows x64	lemonade-embeddable-11.5.0-windows-x64.zip
macOS arm64	lemonade-embeddable-11.5.0-macos-arm64.tar.gz

What's Changed

Thanks @OussamaBATOUCHE, @QuManu, @SlawomirNowaczyk, @abn, @ckopanos, @ekkoitac, @fl0rianr, @jon-hotaisle, @kenvandine, @kyuubyN, @meghsat, @midu16, @pwilkin, @radhaksri, @ramkrishna2910, @superm1, @therealjuanmartinez for your awesome contributions to this release!

Click to expand changelog

Update version to prepare for release by @superm1 in #2702
fix(security): pin SHA-256 checksums for contributor-hosted backend assets by @superm1 in #2710
fix(ci): always run macOS C++ unit tests regardless of signing by @superm1 in #2712
docs (fix): typo in readme by @jon-hotaisle in #2701
feat(router): onnxruntime classification backend + /v1/classify (capability for #2592; policy wiring in #2384) by @ramkrishna2910 in #2626
Fix: re-pulling a collection.router model fails with "unknown key 'source'" by @SlawomirNowaczyk in #2703
feat: add Modelscope search by @fl0rianr in #2716
fix(websocket): allow Windows Tauri WebView2 origin for upgrades by @superm1 in #2721
fix: quote /MANIFESTINPUT path and detect RX 7600 as gfx110X by @kyuubyN in #2678
Add server-side MCP client host foundation by @fl0rianr in #2605
fix(docker): Add libreadline8 to Dockerfile dependencies by @ckopanos in #2733
fix(security): apply HTTP trust policies to POST request paths by @fl0rianr in #2741
feat: job engine by @pwilkin in #2718
Keep sd-cpp validation images out of auto-update PRs by @fl0rianr in #2502
feat(server): support PNA CORS, custom allowed origins, and custom headers by @abn in #2660
feat(cli): add native HTTPS/TLS and URL scheme parsing support by @abn in #2373
feat(trellis): per-request UV atlas method, bump trellis to v0.4.3 by @pwilkin in #2667
fix(docker): include build-essential in runtime stage for vLLM Triton… by @midu16 in #2749
Wire collection.router classifiers to Router::classify + validate model capability at parse time by @QuManu in #2727
[Router] llm router classifier + routing.router desugaring (#2405) by @OussamaBATOUCHE in #2698
Support gfx950, using the same path as gfx942 by @SlawomirNowaczyk in #2687
feat(telemetry): honor incoming W3C traceparent (opt-in) by @radhaksri in #2734
[Router] [UI] Author collection.router in the custom-collection panel (#2406) by @meghsat in #2693
Router end-to-end demo, integration test, and docs (#2388) by @ramkrishna2910 in #2732
fix(router): isolate routing helpers from standard model LRU slots by @fl0rianr in #2729
Update version to 11.5.0 by @ramkrishna2910 in #2772
fix: detect Arch ggml HIP plugin paths by @ekkoitac in #2760
api: expose is_busy and is_streaming flags in /health response by @therealjuanmartinez in #2720
Fix arm64 PPA packages missing bundled web UI by @kenvandine in #2770
fix: resolve CORS blockage on MCP Gateway Endpoint by @abn in #2771

New Contributors

@jon-hotaisle made their first contribution in #2701
@ckopanos made their first contribution in #2733
@midu16 made their first contribution in #2749
@QuManu made their first contribution in #2727
@OussamaBATOUCHE made their first contribution in #2698
@radhaksri made their first contribution in #2734
@ekkoitac made their first contribution in #2760
@therealjuanmartinez made their first contribution in #2720

Full Changelog: v11.0.0...v11.5.0

Windows installers are signed. Free code signing provided by SignPath.io, certificate by SignPath Foundation. See our Code Signing Policy.

Router Milestone Contributors

The Lemonade Router shipped across v11.0.0 and v11.5.0 (17 PRs). PR authors: @eddierichter-amd, @SlawomirNowaczyk, @ramkrishna2910, @OussamaBATOUCHE, @QuManu, @meghsat, @fl0rianr, @coolduderules. Reviewers: @fl0rianr, @SlawomirNowaczyk, @eddierichter-amd, @ramkrishna2910, @meghsat, @superm1, @bong-water-water-bong.