In part 2 of our MQTT 5 Essentials series, we will determine that the new version of this popular IoT protocol, MQTT 5, is still MQTT. All the proven principles of MQTT remained, but there were some foundational changes and a set of useful new features was added, like:
- User Properties
- Reason Codes
- Return Codes for unsupported features (Negative Acknowledgements)
- Clean Start
- Additional Auth Packet
- UTF-8 String pairs
- Bi-directional DISCONNECT packets
- No retry for QoS 1 and 2 messages
- Using passwords without usernames
Many of them will be explained in detail in the following parts of this series. It is mentionable brokers like HiveMQ already introduced some of these features in earlier versions of MQTT.
*** Chapters / Table of Contents ***
00:00 Welcome to MQTT5 Essentials
00:17 MQTT is still MQTT
00:28 New features and foundational changes to MQTT 5
02:26 Conclusion
02:39 Announcing part 3 - Session and Message Expiry Intervals
👉 Be sure to watch our first video series - MQTT Essentials - about the basic concepts of MQTT: [ Ссылка ]
👉 We have a detailed blog series explaining all the new features available in MQTT 5: [ Ссылка ]
👉 We also explain the core of MQTT, its features, and other essential information in this HiveMQ blog series: [ Ссылка ]
👉 To learn the basics of MQTT and MQTT 5 together, get your copy of free E-Book here: [ Ссылка ]
👉 To know about HiveMQ: [ Ссылка ]
👉 Subscribe to our HiveMQ channel to get video updates. Hit the subscribe button below or subscribe to our newsletter ([ Ссылка ]) to keep up to date on the latest MQTT news.
👉 We look forward to seeing you next week for MQTT 5 Essentials part 3 - Session and Message Expiry Intervals: [ Ссылка ]
#MQTT5 #MQTT #MQTT5Essentials
