Release Note 🎉

🚀 v1.12.0 – AI super‑powered, smoother desktop, smarter, native MCP integration, and plenty of polish

The Copilot gets a full upgrade with multi‑model support (Gemini 2.5, Claude‑4, GPT‑4.1, o3/o4‑mini, Azure OpenAI), richer schema & MCP tooling, and deeper reasoning. Desktop and Web jump to modern Node/Electron versions, and the CLI gains flexible payload generation – all wrapped in a host of UX refinements and bug fixes.

Features 🌈

• Desktop:
  • Auto‑save & restore window position/size for a seamless comeback.
  • Active topic & payload search highlighting for quicker navigation.
  • Copilot 2.0
    • Plug‑and‑play with Gemini 2.5 (Pro “thinking” mode), Claude‑4, GPT‑4.1, o3, o4‑mini & Azure OpenAI.
    • One‑click custom function & schema (Protobuf / Avro) generation.
    • Session management, enhanced reasoning, and MCP call detection with streaming results.
    • Native MCP integration – stdio, HTTP SSE server support, call detection, result processing & streaming responses.
• CLI:
  • -payload-size option for random message generation lets you stress‑test with precise loads.

Improvements 💫

• Desktop:
  • Electron bumped to v33, Node runtime to 18 for performance & security.
  • DevTools toggle is enabled in development builds.
  • Copilot 2.0
    • Copilot codebase refactored for stronger type‑safety, cleaner component structure, and faster load times.
• CLI:
  • Line‑mode publishing and bench/simulate client ID refinements.
• Web:
  • Runtime aligned to Node 18 for parity with Desktop.

Fixes 🛠

• Desktop:
  • Resolved SQLite disconnect warnings on wake‑from‑sleep.
  • Prevented accidental drag on connection list rows.
  • Restored paste inside Monaco editor.
  • Refined native scrollbar styling on Windows.
  • Applied active search filters to live message stream.
  • Ensured search filters persist on incoming messages.
  • Copilot 2.0
    • Fixed loading state flicker, input focus loss, and preset prompt display glitches.
    • Removed obsolete files and tightened MCP availability checks.

What's Changed

• chore(pkg): update node engine versiont to 16 by @ysfscream in https://github.com/emqx/MQTTX/pull/1853
• feat(desktop): save and restore window state by @ni00 in https://github.com/emqx/MQTTX/pull/1852
• chore(web): update Node.js version to 18 by @Red-Asuka in https://github.com/emqx/MQTTX/pull/1875
• chore(desktop): upgrade Node.js version to 18 by @Red-Asuka in https://github.com/emqx/MQTTX/pull/1876
• refactor(copilot): integrate AI SDK for improved model handling by @Red-Asuka in https://github.com/emqx/MQTTX/pull/1877
• fix(copilot): fix loading state by @Red-Asuka in https://github.com/emqx/MQTTX/pull/1879
• feat(copilot): support generating custom functions by @Red-Asuka in https://github.com/emqx/MQTTX/pull/1880
• style(copilot): update copilot button icon and enhance styling by @Red-Asuka in https://github.com/emqx/MQTTX/pull/1881
• feat(copilot): support generating schema by @Red-Asuka in https://github.com/emqx/MQTTX/pull/1883
• refactor(copilot): reorganize AI-related components and utilities by @ysfscream in https://github.com/emqx/MQTTX/pull/1882
• refactor(copilot): improve type safety by @ysfscream in https://github.com/emqx/MQTTX/pull/1884
• refactor(i18n): migrate Copilot translations to dedicated locale file by @ysfscream in https://github.com/emqx/MQTTX/pull/1885
• fix(copilot): improve input focus and handling for preset prompts by @ysfscream in https://github.com/emqx/MQTTX/pull/1886
• feat(copilot): add raw-loader and dynamic system prompt loading by @ysfscream in https://github.com/emqx/MQTTX/pull/1887
• feat(copilot): improve preset prompt display behavior on input focus by @ysfscream in https://github.com/emqx/MQTTX/pull/1888
• feat(copilot): support separate Protobuf and Avro schema generation prompts by @ysfscream in https://github.com/emqx/MQTTX/pull/1889
• feat(copilot): introduce session management for AI interactions by @ysfscream in https://github.com/emqx/MQTTX/pull/1890
• chore(pkg): bump electron version to 22.0.0 by @ysfscream in https://github.com/emqx/MQTTX/pull/1896
• feat(copilot): MCP support by @ysfscream in https://github.com/emqx/MQTTX/pull/1894
• fix(desktop): fix sqlite disconnect warning issue by @ysfscream in https://github.com/emqx/MQTTX/pull/1897
• fix(desktop): fix i18n issues by @ysfscream in https://github.com/emqx/MQTTX/pull/1898
• feat(copilot): sse mcp servers support by @ysfscream in https://github.com/emqx/MQTTX/pull/1899
• fix(copilot): remove useless file by @ysfscream in https://github.com/emqx/MQTTX/pull/1901
• refactor(copilot): add MCP call detection and display component by @ysfscream in https://github.com/emqx/MQTTX/pull/1902
• refactor(copilot): integrate AI Agent for response handling by @ysfscream in https://github.com/emqx/MQTTX/pull/1903
• refactor(copilot): remove MCP availability check and enhance AI streaming options by @ysfscream in https://github.com/emqx/MQTTX/pull/1904
• feat(copilot): implement MCP result processing by @ysfscream in https://github.com/emqx/MQTTX/pull/1906
• feat(copilot): enhance reasoning support by @ysfscream in https://github.com/emqx/MQTTX/pull/1907
• chore: bump electron version to 33.0.0 by @ysfscream in https://github.com/emqx/MQTTX/pull/1909
• fix(desktop): fix generate the latest.yaml issue on ci by @ysfscream in https://github.com/emqx/MQTTX/pull/1911
• fix(ci): update artifact upload process to use gitHub release by @ysfscream in https://github.com/emqx/MQTTX/pull/1913
• fix(desktop): prevent drag on connection list by @ysfscream in https://github.com/emqx/MQTTX/pull/1916
• fix(desktop): fix can not past content on monaco editor by @ysfscream in https://github.com/emqx/MQTTX/pull/1917
• fix(ci): skip Docker/artifact uploads for pre-releases by @ysfscream in https://github.com/emqx/MQTTX/pull/1919
• chore: bump version to 1.12.0-beta.3 by @ysfscream in https://github.com/emqx/MQTTX/pull/1921
• feat(copilot): google gemini support by @ysfscream in https://github.com/emqx/MQTTX/pull/1923
• refactor(copilot): repalce show preset prompt hover with Reverting to… by @ysfscream in https://github.com/emqx/MQTTX/pull/1924
• chore(deps): update @ai-sdk/openai to support gpt-4.1 by @ysfscream in https://github.com/emqx/MQTTX/pull/1925
• feat(copilot): add Azure OpenAI support by @ysfscream in https://github.com/emqx/MQTTX/pull/1926
• test(copilot): expand unit tests for AI model providers by @ysfscream in https://github.com/emqx/MQTTX/pull/1928
• feat(copilot): o3 and o4-mini support by @ysfscream in https://github.com/emqx/MQTTX/pull/1930
• refactor(background): enable devTools in BrowserWindow configuration by @ysfscream in https://github.com/emqx/MQTTX/pull/1935
• ci: translate issue in Chinese into English by @Rory-Z in https://github.com/emqx/MQTTX/pull/1938
• feat(cli): add payload size option for random message generation by @ysfscream in https://github.com/emqx/MQTTX/pull/1940
• fix(connections): apply active search filters on incoming messages by @muzaffarmhd in https://github.com/emqx/MQTTX/pull/1939
• fix(log): add no-drag region to select input on log page by @ysfscream in https://github.com/emqx/MQTTX/pull/1942
• fix(log): add no-drag region to select input on log page by @ysfscream in https://github.com/emqx/MQTTX/pull/1943
• feat(desktop): add highlighting on active topic and payload search by @muzaffarmhd in https://github.com/emqx/MQTTX/pull/1944
• 1.12.0-beta.4 by @ysfscream in https://github.com/emqx/MQTTX/pull/1946
• fix(desktop): fix sys scrollbar style issue for win by @ysfscream in https://github.com/emqx/MQTTX/pull/1947
• feat(copilot): claude-4 llm model support by @ysfscream in https://github.com/emqx/MQTTX/pull/1948
• feat(copilot): gemini 2.5 thinking mode support by @ysfscream in https://github.com/emqx/MQTTX/pull/1949
• 1.12.0 by @ysfscream in https://github.com/emqx/MQTTX/pull/1950

New Contributors

• Thanks so much for @muzaffarmhd made their first contribution in https://github.com/emqx/MQTTX/pull/1939

Full Changelog: https://github.com/emqx/MQTTX/compare/v1.11.1...v1.12.0