46 lines
1.2 KiB
Markdown
46 lines
1.2 KiB
Markdown
|
<!--
|
||
|
|
.. title: MQTT 5 Test Release
|
||
|
|
.. slug: mqtt5-test-release
|
||
|
|
.. date: 2019-02-14 10:30:00 UTC
|
||
|
|
.. tags: Releases
|
||
|
|
.. category:
|
||
|
|
.. link:
|
||
|
|
.. description:
|
||
|
|
.. type: text
|
||
|
|
-->
|
||
|
|
|
||
|
|
The work on MQTT v5 support in Mosquitto has reached a point where it may be of interest to a range of people. It is not yet complete, but wider testing and feedback would be appreciated.
|
||
|
|
|
||
|
|
The source is available at [mosquitto-mqtt5-test1.tar.gz] and can be compiled as normal.
|
||
|
|
|
||
|
|
## Supported features
|
||
|
|
|
||
|
|
* Session expiry
|
||
|
|
* Message expiry
|
||
|
|
* Reason code on all ACKs (not all reason codes are used)
|
||
|
|
* Reason string on all ACKs (no reason strings are provided by the broker however)
|
||
|
|
* Payload format and content type
|
||
|
|
* Request / response pattern
|
||
|
|
* Subscription ID
|
||
|
|
* Topic alias
|
||
|
|
* Flow control
|
||
|
|
* User properties
|
||
|
|
* Optional server feature availability
|
||
|
|
* Subscription options
|
||
|
|
* Server keep alive
|
||
|
|
* Assigned Client ID
|
||
|
|
|
||
|
|
|
||
|
|
## Unsupported features
|
||
|
|
|
||
|
|
* Shared subscriptions
|
||
|
|
* Extended authentication
|
||
|
|
* Server reference
|
||
|
|
* Not all reason codes are used by the broker
|
||
|
|
* Bridges do not use MQTT v5
|
||
|
|
* On disk persistence does not include MQTT 5 property support
|
||
|
|
* The broker will not create topic aliases
|
||
|
|
|
||
|
|
|
||
|
|
[mosquitto-mqtt5-test1.tar.gz]: https://mosquitto.org/files/source/test/mosquitto-mqtt5-test1.tar.gz
|