Updated MQTT features support page

Author: vadim-kovalyov

articles/iot-operations/reference/mqtt-support.md

@@ -19,43 +19,46 @@ MQTT broker currently supports the following MQTT features and control packets.
 |---|:---:|:---:|
 | CONNECT Keep-Alive | Supported | Supported |
 | CONNECT Will Messages | Supported | Supported |
-| CONNECT Clean Start | | Supported |
-| CONNECT Persistent session | | Supported |
-| CONNECT Session Expiry Interval | | Supported |
-| CONNECT Receive Maximum | | Supported |
-| CONNECT Maximum Packet Size | | |
-| CONNECT Topic Alias Maximum | | |
-| CONNECT Request Response Information | | |
-| CONNECT User Properties | | Supported |
-| CONNECT Authentication Data | | |
-| CONNECT Authentication Method | | |
-| CONNECT Session Present flag (Persistent session) | Supported | Supported |
-| CONNECT Server Generated Client ID | Supported | Supported |
-| AUTH | | |
+| CONNECT Will Messages Delay | N/A | Supported |
+| CONNECT Will Messages Expiry Interval | N/A | Supported |
+| CONNECT Will Messages User Properties | N/A | Supported |
+| CONNECT Clean Start | Supported | Supported |
+| CONNECT Persistent session | Supported | Supported |
+| CONNECT Session Expiry Interval | N/A | Supported |
+| CONNECT Client Receive Maximum | N/A | Supported |
+| CONNECT Client Maximum Packet Size | N/A | Not Supported |
+| CONNECT Topic Alias Maximum | N/A | Not Supported |
+| CONNECT Request Response Information | N/A | Not Supported |
+| CONNECT User Properties | N/A | Supported |
+| CONNECT Authentication Data | N/A | Supported |
+| CONNECT Authentication Method | N/A | Supported |
+| CONNECT Server Generated Client ID | N/A | Supported |
+| CONNACK Session Present | Supported | Supported |
+| CONNACK Server Maximum Packet Size <br>  _(Server sets maximum allowed incoming packet size based on the memory profile)_ | N/A | Supported |
+| AUTH | N/A | Supported |
 | PUBLISH QoS0 Delivery | Supported | Supported |
 | PUBLISH QoS1 Delivery | Supported | Supported |
-| PUBLISH QoS0 Offline messages for persistent sessions | Supported | Supported |
+| PUBLISH QoS2 Delivery | Not Supported | Not Supported |
+| PUBLISH QoS0 Offline messages for persistent sessions <br> _(QoS0 messages are dropped for offline sessions)_  | Not Supported | Not Supported |
 | PUBLISH QoS1 Offline messages for persistent sessions | Supported | Supported |
-| PUBLISH QoS1 Flow control <br> Currently, the broker sends out as many publishes as possible without waiting for the client to acknowledge them. | Supported | Supported |
-| PUBLISH QoS1 Message delivery retry | Supported | Supported |
-| PUBLISH QoS0 Retain | Supported | Supported |
-| PUBLISH QoS1 Retain | Supported | Supported |
-| PUBLISH Correlation Data | | Supported |
-| PUBLISH Response Topic | | Supported |
-| PUBLISH Payload Format Indicator | | Supported |
-| PUBLISH Message Expiry Interval | | Supported |
-| PUBLISH Topic Alias | | |
-| PUBLISH User Properties | | Supported |
+| PUBLISH QoS1 Flow control <br> _(The broker sends out as many publishes as possible without waiting up to the client's Receive Maximum)_ | N/A | Supported |
+| PUBLISH Retain flag | Supported | Supported |
+| PUBLISH Correlation Data | N/A | Supported |
+| PUBLISH Response Topic | N/A | Supported |
+| PUBLISH Payload Format Indicator | N/A | Supported |
+| PUBLISH Message Expiry Interval | N/A | Supported |
+| PUBLISH Topic Alias | N/A | Not Supported |
+| PUBLISH User Properties | N/A | Supported |
 | SUBSCRIBE | Supported | Supported |
-| SUBSCRIBE Retain as Published | | Supported |
-| SUBSCRIBE Retain Handling | | Supported |
+| SUBSCRIBE Retain as Published | N/A | Supported |
+| SUBSCRIBE Retain Handling | N/A | Supported |
 | SUBSCRIBE Wildcards | Supported | Supported |
-| SUBSCRIBE No Local | | |
+| SUBSCRIBE No Local | N/A | Supported |
 | UNSUBSCRIBE | Supported | Supported |
-| SUBSCRIBE $SYS topics | | |
-| SUBSCRIBE Subscription Identifiers | | |
-| SUBSCRIBE Shared Subscriptions |Supported | Supported |
-| SUBSCRIBE Max subscriptions per client | | |
+| SUBSCRIBE $SYS topics | Not Supported | Not Supported |
+| SUBSCRIBE Subscription Identifiers | N/A | Not Supported |
+| SUBSCRIBE Shared Subscriptions | Supported | Supported |
+| SUBSCRIBE Max subscriptions per client | Not Supported | Not Supported |
 | PINGREQ | Supported | Supported |
 | DISCONNECT | Supported | Supported |
-| DISCONNECT Session Expiry Interval | | |
+| DISCONNECT Session Expiry Interval | N/A | Supported |