Announcement on the termination of support by the TCP service of ApsaraMQ for RocketMQ 4.x instances for access to new instances or topics from the classic network

Dear Alibaba Cloud user:
Starting from December 1, 2023, the TCP service that is provided by ApsaraMQ for RocketMQ 4.x instances no longer supports the access to new ApsaraMQ for RocketMQ instances or topics from applications that are deployed on Elastic Compute Service (ECS) instances in the classic network. ApsaraMQ for RocketMQ resources for the classic network are sold out. If your applications that are deployed on ECS instances in the classic network need to access ApsaraMQ for RocketMQ 4.x instances, the applications can no longer access ApsaraMQ for RocketMQ instances or topics that are created after November 30, 2023. Applications that are deployed in virtual private clouds (VPCs) can access ApsaraMQ for RocketMQ instances and topics as expected. If you want to use new ApsaraMQ for RocketMQ instances and topics, we recommend that you migrate your applications from ECS instances in the classic network to ECS instances in VPCs at the earliest opportunity. For more information, see https://www.alibabacloud.com/help/en/ecs/user-guide/migrate-ecs-instances-from-the-classic-network-to-a-vpc
If you have questions during the migration, submit a ticket to contact Alibaba Cloud technical support.