[Alibaba Cloud][AliwareMQ for MQTT ][Upgrade Notice]
Upgrade windows, regions, and instance types that may be affected:
July 01, 2024 22:00 Beijing time - July 02, 2024 07:00 Beijing time [Hangzhou, Shanghai, Shenzhen, Beijing, Public]
July 03, 2024 22:00 Beijing time - July 04, 2024 07:00 Beijing time [Singapore, Hong Kong, Tokyo, Sydney, Kuala Lumpur, Jakarta, Manila, Mumbai, Frankfurt, Silicon Valley, Virginia, Dubai, London, Riyadh]
July 08, 2024 22:00 Beijing time - July 09, 2024 07:00 Beijing time [Hangzhou, Shanghai, Shenzhen, Beijing, Public, Zhangjiakou, Chengdu, Qingdao, Hohhot]
July 10, 2024 22:00 Beijing time - July 11, 2024 07:00 Beijing time [Hangzhou, Shanghai, Shenzhen, Beijing, Public]
July 15, 2024 22:00 Beijing time - July 16, 2024 07:00 Beijing time [Hangzhou, Shanghai, Shenzhen, Beijing, Public]
July 17, 2024 22:00 Beijing time - July 18, 2024 07:00 Beijing time [Zhangjiakou, Chengdu, Qingdao, Hohhot]
July 22, 2024 22:00 Beijing time - July 23, 2024 07:00 Beijing time [Hangzhou, Shanghai, Shenzhen, Beijing, Public, Zhangjiakou, Chengdu, Qingdao, Hohhot]
July 24, 2024 22:00 Beijing time - July 25, 2024 07:00 Beijing time [Singapore, Hong Kong, Tokyo, Sydney, Kuala Lumpur, Jakarta, Manila, Mumbai, Frankfurt, Silicon Valley, Virginia, Dubai, London, Riyadh]

Upgrade Impact:
During the upgrade, the MQTT console and each service node in the cluster may experience a second-level flash (the flash time is positively related to the cluster scale). The client application needs to set automatic reconnection to avoid affecting the business.
During the upgrade period, there may be a small number of failures in message sending, and the application should implement a retry mechanism for disconnection failures; at the same time, there may be message delays. For administrative operations on the console, please avoid maintenance windows.
Sorry for the inconvenience caused to you, if you have any questions, please feel free to contact us through the ticket.