This topic describes the release notes for Dedicated Host (DDH) and provides links to the relevant references.

Feature Description Release date Region References
Security-enhanced types r7t, g7t, and c7t Dedicated hosts of r7t, g7t, and c7t are released for scenarios such as encryption. They are equipped with Intel® Software Guard Extensions (Intel® SGX). 2021-10-14 Some regions Dedicated host types
Migration of a dedicated host with hidden failure risks A dedicated host with hidden failure risks can be migrated to another dedicated host to protect your services. 2020-07-29 All regions Migrate a dedicated host with hidden failures
Export of the dedicated host information The information of all dedicated hosts in a region can be exported and saved as a report for backup. 2020-07-29 All regions View and import the information of a dedicated host
Customization of the g6s, c6s, and r6s dedicated hosts The vCPU-to-memory ratio of the g6s, c6s, and r6s hosts can be customized. As a result, computing resources can be flexibly allocated when ECS instances are created. 2020-05-12 All regions Dedicated host types
Upgrade and downgrade of ECS instances The specifications and public bandwidth of an ECS instance on a dedicated host can be changed. 2019-08-15 All regions Upgrade or downgrade a subscription ECS instance
CPU overprovisioned type v5 Dedicated hosts of v5 are released for low-CPU-usage applications and cloud migration from physical servers on which VMware, OpenStack, Hyper-V, or KVM is deployed. As a result, the deployment costs of a single instance are reduced. 2019-07-24 All regions Dedicated host types
Automatic deployment of ECS instances Automatic deployment is supported by DDH to eliminate the need to specify a dedicated host when an ECS instance is created. Instead, the system automatically selects a dedicated host that meets the automatic deployment requirements. 2019-05-13 All regions Features
First release of DDH Dedicated Host is a specialized solution developed by Alibaba Cloud for enterprise users. DDH can effectively reduce the total cost of ownership (TCO) for cloud migration. 2018-11-15 All regions What is DDH?