[{"data":1,"prerenderedAt":575},["Reactive",2],{"VEb9Nnn1YX":3,"blog-post-en-mqttx-1-13-3-released":26,"blog-posts-en":348},{"items":4,"meta":23},[5,8,11,14,17,20],{"title":6,"titleUrl":7},"MQTT QoS 0、1、2 のクイックスタート","introduction-to-mqtt-qos",{"title":9,"titleUrl":10},"MQTT TopicとWildcardの初心者向けガイド","advanced-features-of-mqtt-topics",{"title":12,"titleUrl":13},"MQTT Broker：原理、人気のオプション、クイックスタート","the-ultimate-guide-to-mqtt-broker-comparison",{"title":15,"titleUrl":16},"ESP32におけるMQTT活用入門ガイド","esp32-connects-to-the-free-public-mqtt-broker",{"title":18,"titleUrl":19},"CAN Bus：機能、利点と課題、高速ローカル処理チュートリアル","can-bus-how-it-works-pros-and-cons",{"title":21,"titleUrl":22},"Python言語の「Paho」MQTTクライアントの使用法","how-to-use-mqtt-in-python",{"count":24,"limit":24,"page":25},6,1,{"slug":27,"title":28,"description":29,"date":30,"category":31,"cover":32,"version":33,"coverWidth":34,"coverHeight":35,"updated":-1,"tags":36,"readingTime":40,"doc":41},"mqttx-1-13-3-released","MQTTX 1.13.3: Security Improvements and CLI Updates","MQTTX 1.13.3 brings security improvements, a new CLI update command, and benchmark bug fixes and optimizations.","2026-11-04","release-notes","/images/blog/mqttx-1-13-3-released.png","1.13.3",1672,941,[37,38,39],"Release Notes","Security","CLI",3,{"_path":42,"_dir":43,"_draft":44,"_partial":44,"_locale":45,"title":28,"description":29,"date":46,"category":31,"tags":47,"cover":32,"coverWidth":34,"coverHeight":35,"version":33,"draft":44,"body":48,"_type":341,"_id":342,"_source":343,"_file":344,"_extension":345,"readingTime":40,"sitemap":346},"/blog/en/mqttx-1-13-3-released","en",false,"","2026-11-04T00:00:00.000Z",[37,38,39],{"type":49,"children":50,"toc":332},"root",[51,59,66,71,91,97,102,115,128,137,143,148,161,176,182,202,207,227,238,247,252,263,268,274,279,284,290,320],{"type":52,"tag":53,"props":54,"children":55},"element","p",{},[56],{"type":57,"value":58},"text","MQTTX 1.13.3 focuses on security improvements, a new CLI update command, and benchmark bug fixes and optimizations. It also expands Desktop Last-Will payload formats and improves everyday Agent interactions.",{"type":52,"tag":60,"props":61,"children":63},"h2",{"id":62},"security-improvements",[64],{"type":57,"value":65},"Security improvements",{"type":52,"tag":53,"props":67,"children":68},{},[69],{"type":57,"value":70},"This release strengthens Desktop and Agent security across operation approvals, script execution, content handling, and update downloads.",{"type":52,"tag":72,"props":73,"children":74},"ul",{},[75,81,86],{"type":52,"tag":76,"props":77,"children":78},"li",{},[79],{"type":57,"value":80},"Tighten approval requirements for delete, clear, and script changes.",{"type":52,"tag":76,"props":82,"children":83},{},[84],{"type":57,"value":85},"Improve script execution and reply rendering, and use more secure storage for API keys.",{"type":52,"tag":76,"props":87,"children":88},{},[89],{"type":57,"value":90},"Verify CLI downloads and strengthen security in the Desktop update window.",{"type":52,"tag":60,"props":92,"children":94},{"id":93},"update-mqttx-cli-from-the-terminal",[95],{"type":57,"value":96},"Update MQTTX CLI from the terminal",{"type":52,"tag":53,"props":98,"children":99},{},[100],{"type":57,"value":101},"Updating a standalone CLI installation previously meant downloading and replacing the executable. Starting with 1.13.3, you can run:",{"type":52,"tag":103,"props":104,"children":109},"pre",{"className":105,"code":107,"language":108,"meta":45},[106],"language-bash","mqttx update\n","bash",[110],{"type":52,"tag":111,"props":112,"children":113},"code",{"__ignoreMap":45},[114],{"type":57,"value":107},{"type":52,"tag":53,"props":116,"children":117},{},[118,120,126],{"type":57,"value":119},"The command checks for a newer release and updates through the appropriate channel. Standalone binaries download and replace the current executable; npm and Homebrew installations invoke their package manager. Run ",{"type":52,"tag":111,"props":121,"children":123},{"className":122},[],[124],{"type":57,"value":125},"mqttx --version",{"type":57,"value":127}," afterward to check the installed version.",{"type":52,"tag":129,"props":130,"children":131},"blockquote",{},[132],{"type":52,"tag":53,"props":133,"children":134},{},[135],{"type":57,"value":136},"The update command is available from 1.13.3. Users on older versions need to upgrade once through their existing installation channel.",{"type":52,"tag":60,"props":138,"children":140},{"id":139},"more-accurate-benchmarks-and-connection-recovery",[141],{"type":57,"value":142},"More accurate benchmarks and connection recovery",{"type":52,"tag":53,"props":144,"children":145},{},[146],{"type":57,"value":147},"CLI publish and subscribe benchmarks now calculate rates using the actual sampling interval. Workloads start correctly when an initial connection succeeds after a retry, and active connection counts update correctly. This release also fixes split-file replay stalling after a disconnect.",{"type":52,"tag":53,"props":149,"children":150},{},[151,153,159],{"type":57,"value":152},"Fixed ",{"type":52,"tag":111,"props":154,"children":156},{"className":155},[],[157],{"type":57,"value":158},"%c",{"type":57,"value":160}," in publish topic templates to use each connection’s actual ClientId.",{"type":52,"tag":129,"props":162,"children":163},{},[164],{"type":52,"tag":53,"props":165,"children":166},{},[167,169,174],{"type":57,"value":168},"Topics containing ",{"type":52,"tag":111,"props":170,"children":172},{"className":171},[],[173],{"type":57,"value":158},{"type":57,"value":175}," may change after upgrading; check subscriptions that depend on the previous topics.",{"type":52,"tag":60,"props":177,"children":179},{"id":178},"choose-a-last-will-payload-format",[180],{"type":57,"value":181},"Choose a Last-Will payload format",{"type":52,"tag":129,"props":183,"children":184},{},[185],{"type":52,"tag":53,"props":186,"children":187},{},[188,190,200],{"type":57,"value":189},"Contributed by ",{"type":52,"tag":191,"props":192,"children":197},"a",{"href":193,"rel":194,"target":196},"https://github.com/Killian0812",[195,195],"noopener","_blank",[198],{"type":57,"value":199},"Killian0812",{"type":57,"value":201},".",{"type":52,"tag":53,"props":203,"children":204},{},[205],{"type":57,"value":206},"A Last-Will message lets the broker publish a predefined message when a client disconnects unexpectedly. If a device expects a binary format, its Last-Will payload needs the same encoding.",{"type":52,"tag":53,"props":208,"children":209},{},[210,212,218,220,225],{"type":57,"value":211},"Desktop now supports ",{"type":52,"tag":213,"props":214,"children":215},"strong",{},[216],{"type":57,"value":217},"Plaintext, JSON, Base64, Hex, CBOR, and MsgPack",{"type":57,"value":219}," for Last-Will payloads. Open ",{"type":52,"tag":213,"props":221,"children":222},{},[223],{"type":57,"value":224},"Last Will and Testament",{"type":57,"value":226}," in the connection settings, enter the topic, QoS, retain setting, and payload, then choose a format from the bottom-right corner of the editor.",{"type":52,"tag":53,"props":228,"children":229},{},[230],{"type":52,"tag":231,"props":232,"children":237},"img",{"alt":233,"src":234,"loading":235,"decoding":236},"Last-Will payload format selection","/images/blog/mqttx-1-13-3/mqttx-1.13.3-last-will-formats.png","lazy","async",[],{"type":52,"tag":53,"props":239,"children":240},{},[241],{"type":52,"tag":242,"props":243,"children":244},"em",{},[245],{"type":57,"value":246},"The Last-Will editor offers six payload formats.",{"type":52,"tag":53,"props":248,"children":249},{},[250],{"type":57,"value":251},"For example, select MsgPack and enter a JSON object:",{"type":52,"tag":103,"props":253,"children":258},{"className":254,"code":256,"language":257,"meta":45},[255],"language-json","{\n  \"msg\": \"CLOSED!\"\n}\n","json",[259],{"type":52,"tag":111,"props":260,"children":261},{"__ignoreMap":45},[262],{"type":57,"value":256},{"type":52,"tag":53,"props":264,"children":265},{},[266],{"type":57,"value":267},"MQTTX encodes the Last-Will message as MsgPack, so you do not need a separate tool to prepare the binary content. The format is saved with the connection. Existing connections continue to use Plaintext by default.",{"type":52,"tag":60,"props":269,"children":271},{"id":270},"agent-improvements-for-everyday-work",[272],{"type":57,"value":273},"Agent improvements for everyday work",{"type":52,"tag":53,"props":275,"children":276},{},[277],{"type":57,"value":278},"Agent approval cards show more complete operation parameters, including timed-publish intervals, so you can check them before execution.",{"type":52,"tag":53,"props":280,"children":281},{},[282],{"type":57,"value":283},"This release also improves reply rendering, MCP tool-name handling, and Desktop startup compatibility. Other fixes correct Last-Will topics in connection history and Hex payload encoding when input includes tabs or line breaks.",{"type":52,"tag":60,"props":285,"children":287},{"id":286},"download-and-share-feedback",[288],{"type":57,"value":289},"Download and share feedback",{"type":52,"tag":53,"props":291,"children":292},{},[293,295,301,303,310,312,319],{"type":57,"value":294},"Visit the ",{"type":52,"tag":191,"props":296,"children":298},{"href":297},"/downloads",[299],{"type":57,"value":300},"MQTTX download page",{"type":57,"value":302}," to choose Desktop, CLI, or Web. See the ",{"type":52,"tag":191,"props":304,"children":307},{"href":305,"rel":306,"target":196},"https://github.com/emqx/MQTTX/releases/tag/v1.13.3",[195,195],[308],{"type":57,"value":309},"v1.13.3 release",{"type":57,"value":311}," for the complete changes, and report issues on ",{"type":52,"tag":191,"props":313,"children":316},{"href":314,"rel":315,"target":196},"https://github.com/emqx/MQTTX/issues",[195,195],[317],{"type":57,"value":318},"GitHub",{"type":57,"value":201},{"type":52,"tag":53,"props":321,"children":322},{},[323,325,330],{"type":57,"value":324},"Thank you to everyone who shared feedback, tested changes, and contributed to this release. 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The highlight is the one-click installation for MQTTX CLI via the Desktop application.","2024-07-24","https://assets.emqx.com/images/7a7961ab5f29584b8b157b967e6fe0b2.jpg","1.10.1",{"slug":419,"title":420,"description":421,"date":422,"category":31,"cover":423,"version":424},"mqttx-1-10-0-release-notes","MQTTX 1.10.0 Released: Advanced File Management and Configuration in CLI","This release significantly enhances file management and configuration capabilities, particularly in the CLI version.","2024-06-17","https://assets.emqx.com/images/fd939c89609cdc8af6cdc93346ce58da.jpg","1.10.0",{"slug":426,"title":427,"description":428,"date":429,"category":31,"cover":430,"version":431},"mqttx-1-9-10-release-notes","MQTTX 1.9.10 Released: Enhanced Diagnostic Insights","This release features crucial Faker.js updates, better diagnostic insights for disconnections and subscription issues, and new CLI and UI enhancements. It aims to simplify user workflows and enhance troubleshooting.","2024-04-15","https://assets.emqx.com/images/c6a16836537c82bc580e738ca0534d5c.jpg","1.9.10",{"slug":433,"title":434,"description":435,"date":436,"category":437,"cover":438,"version":-1},"how-to-publish-and-receive-protobuf-messages-within-mqtt","How to Publish and Receive Protobuf Messages within MQTT?","This article will demonstrate how to define, publish, and receive Protobuf messages with MQTTX client.","2024-03-25","guides","https://assets.emqx.com/images/8c5e5764795a2b500deb4f429b1f7f64.jpg",{"slug":440,"title":441,"description":442,"date":443,"category":31,"cover":444,"version":445},"mqttx-1-9-9-release-notes","MQTTX 1.9.9 Released: Debug Logging and UI Flexibility","MQTTX 1.9.9 is now available with critical updates: improved connection events, CBOR data format support, customizable log levels for debugging, and enhanced UI flexibility.","2024-03-04","https://assets.emqx.com/images/b1f147c49bded5c95a52d2a4d212fb59.png","1.9.9",{"slug":447,"title":448,"description":449,"date":450,"category":31,"cover":451,"version":452},"mqttx-1-9-8-release-notes","MQTTX 1.9.8 Released: CLI Debug Mode and Copilot Enhancements","MQTTX 1.9.8 is now available, introducing a new CLI Debug Mode. This feature greatly enhances developers' troubleshooting and analysis capabilities.","2024-01-15","https://assets.emqx.com/images/7598cdfaaad358b469b840dd93d95893.png","1.9.8",{"slug":454,"title":455,"description":456,"date":457,"category":31,"cover":458,"version":459},"mqttx-1-9-7-release-notes","MQTTX 1.9.7: Introducing Copilot - Your AI-Powered MQTT Assistant","A significant highlight of this release is the introduction of MQTTX Copilot, our innovative MQTT AI assistant, specially designed to offer crucial convenience to users.","2023-12-18","https://assets.emqx.com/images/8f8d0aa2b0e70f2c28b71f846e21f68b.png","1.9.7",{"slug":461,"title":462,"description":463,"date":464,"category":31,"cover":465,"version":466},"mqttx-v-1-9-6-release-notes","MQTTX 1.9.6 Released: ALPN Protocol Support, Optimized Publish Options Interface","This update prioritizes the improvement of connection protocols and user interface for a better experience.","2023-09-30","https://assets.emqx.com/images/2f2554241e1fbe1e6d11a066e5e61a20.png","1.9.6",{"slug":468,"title":469,"description":470,"date":471,"category":437,"cover":472,"version":-1},"demonstrate-mqtt-5-0-features-using-mqttx-cli","Explore New Features of MQTT 5.0: Usage Examples Based on MQTTX CLI","This blog will introduce each new feature introduced in 5.0 in turn, and use the MQTTX CLI tool to demonstrate how we can use these features in EMQX.","2023-09-07","https://assets.emqx.com/images/c566cf1994ec1e29c6fea3b33270f535.png",{"slug":474,"title":475,"description":476,"date":477,"category":31,"cover":478,"version":479},"mqttx-1-9-5-released-json-message-highlighting-and-more","MQTTX 1.9.5 Released: JSON Message Highlighting and More!","In this version, we have mainly enhanced the error message prompts for JSON syntax in the desktop client and added support for JSON highlighting in messages.","2023-08-17","https://assets.emqx.com/images/beefc011aa3bda44261a33f7adaef669.png","1.9.5",{"slug":481,"title":482,"description":483,"date":484,"category":31,"cover":485,"version":486},"mqttx-v-1-9-4-release-notes","MQTTX 1.9.4: Empowering High-Frequency MQTT Testing with Protobuf Integration","This update brings significant improvements to user experience, including more efficient support for Protobuf message transmission and optimized automatic update functionality.","2023-07-19","https://assets.emqx.com/images/6d6aab33de33c914d87f7fd6a4d86153.png","1.9.4",{"slug":488,"title":489,"description":490,"date":491,"category":31,"cover":492,"version":493},"mqttx-1-9-3-introduces-powerful-iot-scenario-data-simulation-feature","Boosting Development Efficiency: MQTTX 1.9.3 Introduces Powerful IoT Scenario Data Simulation","MQTTX 1.9.3 introduced a valuable enhancement to its command-line client: It empowers developers to simulate IoT scenario data, catering to their specific testing needs.","2023-05-29","https://assets.emqx.com/images/657ba5a04f29a7b318206a642223db8f.png","1.9.3",{"slug":495,"title":496,"description":497,"date":498,"category":31,"cover":499,"version":500},"mqttx-v-1-9-2-release-notes","MQTTX 1.9.2 Released: The Best MQTT Client Toolbox Is Even Better","v1.9.2 supports the output mode of the command-line tool, allowing users to customize data pipelines according to their needs and thus more conveniently and efficiently process output data.","2023-04-27","https://assets.emqx.com/images/44cad865821d28706395fd74e8bd766a.png","1.9.2",{"slug":502,"title":503,"description":504,"date":505,"category":31,"cover":506,"version":507},"mqttx-v-1-9-1-release-notes","MQTTX 1.9.1 is Released: Resource Utilization Reduced by 80%, and Stability Greatly Improved","MQTT X 1.9.1 has significantly reduced CPU and memory usage by 80% compared to the previous version, resulting in greatly optimized overall performance and reduced risk of system crashes.","2023-02-16","https://assets.emqx.com/images/754c43fbfce927d7b9f41f98e9c47338.png","1.9.1",{"slug":509,"title":510,"description":511,"date":512,"category":31,"cover":513,"version":514},"mqttx-v-1-9-0-release-notes","MQTTX 1.9.0 released with an Out-of-the-box bench command, making your MQTT test even easier","Recently, MQTT X 1.9.0 has been released. For the command-line client, the bench command has been added to help users easily complete MQTT service performance testing.","2022-11-15","https://assets.emqx.com/images/8381cbe50e0aa19dcf36020b11de6fba.png","1.9.0",{"slug":516,"title":517,"description":518,"date":519,"category":31,"cover":520,"version":521},"mqttx-v-1-8-3-release-notes","MQTTX v1.8.3 Release Notes","Recently, MQTT X released the latest version 1.8.3, The main optimization of function usage and the various problems encountered in the process of use are fixed.","2022-11-01","https://assets.emqx.com/images/ad183ef26fc1dfaf6c33b46256c04e16.png","1.8.3",{"slug":523,"title":524,"description":525,"date":526,"category":362,"cover":527,"version":-1},"powerful-and-easy-to-use-mqtt-5-command-line-tool","MQTTX CLI: A Powerful and Easy-to-Use MQTT CLI","In order to provide more choices and convenience for users to implement MQTT connection tests, MQTT X v1.8.0 adds the command line as a form of interaction - the MQTT X CLI.","2022-08-11","https://assets.emqx.com/images/5cd78ca578543888ebfc50ced158dcd0.png",{"slug":529,"title":530,"description":531,"date":532,"category":31,"cover":533,"version":534},"mqttx-v-1-7-1-release-notes","MQTTX v1.7.1 Release Note","MQTT X v1.7.1 release note: Support MQTT 5.0 subscription Identifier, expose more MQTT 5.0 properties on display.","2022-01-28","https://assets.emqx.com/images/0fd941ba646695f51f019da65a693087.png","1.7.1",{"slug":536,"title":537,"description":538,"date":532,"category":31,"cover":539,"version":540},"mqttx-v-1-7-2-release-notes","MQTTX v1.7.2 Release Note","MQTT X v1.7.2 release note: Shared subscriptions support topic color markers, add more ARM builds.","https://assets.emqx.com/images/8cedad1520b432cc23fe3cf73df87586.png","1.7.2",{"slug":542,"title":543,"description":544,"date":545,"category":31,"cover":546,"version":547},"mqttx-v-1-7-0-release-notes","MQTTX v1.7.0 released: the desktop client that supports MQTT 5.0 most","Recently, MQTT X v1.7.0 was officially released, from this version, MQTT X will further support many new features of MQTT 5.0.","2022-01-04","https://assets.emqx.com/images/b670f636cd22144ede7d122af5127319.png","1.7.0",{"slug":549,"title":550,"description":551,"date":552,"category":437,"cover":553,"version":-1},"mqttx-script-function-tutorial","MQTTX Script Function Tutorial","MQTT X has added a script function since v1.4.2. This article will introduce the use of the script function with two simple instances.","2021-03-01","https://assets.emqx.com/images/188cd490ad41a00c2eb797256cd3145a.png",{"slug":555,"title":556,"description":557,"date":558,"category":31,"cover":559,"version":560},"mqttx-v-1-4-2-release-notes","MQTTX v1.4.2 released with script features","MQTT X v1.4.2 released with script features, automatically append a timestamp to Client ID and optimize some functions.","2021-01-27","https://assets.emqx.com/images/06011d34d8e9b805d2d03b3a546648ee.png","1.4.2",{"slug":562,"title":563,"description":564,"date":565,"category":31,"cover":566,"version":567},"mqttx-v-1-3-1-release-notes","MQTTX v1.3.1 release notes - MQTT 5.0 client tool","MQTT 5.0 client tool - MQTT X v1.3.1, which adds an enable item of strictly validating certificate and supports for more attributes of MQTT 5.0.","2020-05-21","https://assets.emqx.com/images/240e432d5797596aa555d2fdf9640dd5.png","1.3.1",{"slug":569,"title":570,"description":571,"date":572,"category":31,"cover":573,"version":574},"mqttx-v1-3-0-was-officially-released-an-elegant-cross-platform-mqtt5-desktop-test-client","MQTTX v1.3.0 was officially released - Cross-platform MQTT 5.0 desktop test client","MQTT X is a cross-platform MQTT 5.0 desktop test client provided by the world's leading open source IoT middleware provider EMQ , which supports macOS, Linux, Windows. The user interface of MQTT X simplifies the operation logic of the page with the pattern of chatting software. Users can quickly create multiple simultaneous-online MQTT clients to test the connection/publish/subscribe functions of MQTT/TCP, MQTT/TLS and other MQTT protocol features.","2020-03-19","https://assets.emqx.com/images/dbb7d0024d3462edf7ad617978679fbb.png","1.3.0",1793847561877]