Скачать или смотреть Foundational MQTT protocol changes | MQTT 5 Essentials Part 2

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:    • What is MQTT | MQTT Essentials Part 1  

👉 We have a detailed blog series explaining all the new features available in MQTT 5: https://bit.ly/3zVD3Tz

👉 We also explain the core of MQTT, its features, and other essential information in this HiveMQ blog series: https://bit.ly/2Y7JHJn

👉 To learn the basics of MQTT and MQTT 5 together, get your copy of free E-Book here: https://bit.ly/39WFUky

👉 To know about HiveMQ: https://bit.ly/3A24CKW

👉 Subscribe to our HiveMQ channel to get video updates. Hit the subscribe button below or subscribe to our newsletter (https://bit.ly/39QHKDI) 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:    • Session and Message Expiry Intervals | MQT...  

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