This topic describes the release notes for Elastic Compute Service (ECS) features and provides links to the relevant references.

2022

Table 1. June 2022
Feature Description Release date Region References
Scheduled execution of commands Cloud Assistant can be used to create and run commands on schedule. This feature is applicable to scheduled tasks, routine maintenance, and one-time tasks that need to be completed at a point in time. 2022-06-02 All
Table 2. May 2022
Feature Description Release date Region References
Managed elastic network interface (ENI) Managed ENIs are ENIs that are managed by Alibaba Cloud services. When you create ENIs for specific Alibaba Cloud services such as Container Service for Kubernetes (ACK) and NAT Gateway, you can configure the ENIs to be managed by the services. 2022-05-20 All Managed ENIs
Table 3. April 2022
Feature Description Release date Region References
Instance family The g8m general-purpose instance family is released. 2022-04-08 Some Instance family
Table 4. March 2022
Feature Description Release date Region References
Community image Community images are publicly available. Custom images can be published as community images for other users to obtain and use. 2022-03-25 All
Session management The session management feature is provided by Cloud Assistant. Compared with SSH and Virtual Network Console (VNC), session management makes your connections to ECS instances more convenient and secure. 2022-03-22 Some
Table 5. February 2022
Feature Description Release date Region References
Instance family The gn7i GPU-accelerated compute-optimized instance family is released. 2022-02-09 Some Instance family
Table 6. January 2022
Feature Description Release date Region References
Instance family The d3c compute-intensive big data instance family is released. 2022-01-27 Some Instance family

2021

Table 7. November 2021
Feature Description Release date Region References
Snapshot The instance snapshot feature is updated to the snapshot-consistent group feature. 2021-11-30 All Create a snapshot-consistent group
Instance family The ebmgn6ia GPU-accelerated compute-optimized ECS Bare Metal Instance family is released. 2021-11-24 All Instance family
Instance family The ebmg7a general-purpose ECS Bare Metal Instance family, ebmc7a compute-optimized ECS Bare Metal Instance family, and ebmr7a memory-optimized ECS Bare Metal Instance family are released. 2021-11-16 All Instance family
Instance family The ebmg7 general-purpose ECS Bare Metal Instance family, ebmc7 compute-optimized ECS Bare Metal Instance family, and ebmr7 memory-optimized ECS Bare Metal Instance family are released. 2021-11-16 All Instance family
Instance family The ebmgn7e GPU-accelerated compute-optimized ECS Bare Metal Instance family is released. 2021-11-15 All Instance family
Instance family The sgn7i-vws vGPU-accelerated instance family with shared CPUs is released. 2021-11-15 All Instance family
Table 8. October 2021
Feature Description Release date Region References
Instance family The g7se storage-enhanced general-purpose instance family, c7se storage-enhanced compute-optimized instance family, and r7se storage-enhanced memory-optimized instance family are released. 2021-11-02 Some Instance family
Table 9. September 2021
Feature Description Release date Region References
Cloud Assistant The Operation Content and Result Delivery feature can be used to deliver O&M task execution records to Object Storage Service (OSS) and Log Service for persistent storage. 2021-09-28 All Use the Operation Content and Result Delivery feature
Instance family The vgn7i-vws vGPU-accelerated instance family is released. This instance family comes with a NVIDIA GRID vWS license. 2021-09-15 All Instance family
Dedicated Block Storage Cluster Dedicated Block Storage Cluster provides physically isolated storage resources. Exclusive access on the resources in a dedicated block storage cluster is granted to the creator of the cluster. Dedicated block storage clusters can be used to improve the security and O&M efficiency of your business data storage. 2021-09-13 Some Overview
Table 10. August 2021
Feature Description Release date Region References
Network Connectivity Diagnostics The Network Connectivity Diagnostics feature is used to diagnose the network connectivity between diagnostic objects within a virtual private cloud (VPC). The diagnostic objects can be ECS instances or ENIs. You can use this feature to check network connectivity and identify the causes of network connectivity issues. 2021-08-30 All Diagnose network connectivity
Community image Community images are publicly available. Custom images can be published as community images for other users to obtain and use. 2021-08-11 Some Overview
Image Alibaba Cloud Linux 3 supports Kernel Live Patching. This feature allows Alibaba Cloud Linux 3 to update its kernel with new patches without the need to restart instances. 2021-08-10 All Overview
Economical mode The feature name is changed from No Fees for Stopped Instances (VPC-Connected) to economical mode. 2021-08-09 All Economical mode
Table 11. July 2021
Feature Description Release date Region References
Deployment set The maximum number of ECS instances that can be created in a deployment set is increased from 7 to 20. 2021-07-29 All Overview
Resource Assurance Tags can be added to open private pools for fine-grained use. 2021-07-19 All Overview
Instance family The gn7i GPU-accelerated compute-optimized instance family is released. 2021-07-01 All Instance family
Table 12. June 2021
Feature Description Release date Region References
Image Alibaba Cloud Linux 2 supports Kernel Live Patching. This feature allows Alibaba Cloud Linux 2 to update its kernel with new patches without the need to restart instances. 2021-06-30 All Overview of the Kernel Live Patching feature
Automatic reactivation After overdue payments in your account are settled, the instances that were stopped due to these payments can be automatically reactivated. If the instances cannot be automatically reactivated, manually reactivate them in a timely manner. 2021-06-22 All Start an instance
Instance family The ebmgn7i GPU-accelerated compute-optimized ECS Bare Metal Instance family is released. 2021-06-08 All Instance family
Table 13. May 2021
Feature Description Release date Region References
Instance family The ebmc6me compute-optimized ECS Bare Metal Instance family is released. 2021-05-28 Some Instance family
Instance family The g7a general-purpose instance family, c7a compute-optimized instance family, and r7a memory-optimized instance family are released. 2021-05-28 Some Instance family
Table 14. April 2021
Feature Description Release date Region References
Instance family The g7 general-purpose instance family, c7 compute-optimized instance family, and r7 memory-optimized instance family are released. 2021-04-19 Some Instance family
Image Alibaba Cloud Linux 3 public images are released. 2021-04-16 All Alibaba Cloud Linux overview
Reserved instance Reserved instances can be applied to instances of more instance families. 2021-04-15 All Overview
Instance hibernation The instance hibernation feature is released. When hibernated instances are woken, they automatically restore their applications to the states that the applications were in before hibernation. 2021-04-06 Some Hibernate an instance
Snapshot The instance snapshot feature is released. Snapshots can be simultaneously created for multiple cloud disks on an instance by creating a snapshot for the instance. This ensures the point-in-time write consistency of data. 2021-04-06 Some Create a snapshot-consistent group
Snapshot The application-consistent snapshot feature is released. Application-consistent snapshots can be used to roll back applications to ensure that the applications start in a consistent state. 2021-04-06 Some Create application-consistent snapshots in the ECS console
Table 15. March 2021
Feature Description Release date Region References
Instance family The g7t security-enhanced general-purpose instance family, c7t security-enhanced compute-optimized instance family, and r7t security-enhanced memory-optimized instance family are released. 2021-03-31 Some
Instance family The ebmhfg7 general-purpose ECS Bare Metal Instance family with high clock speeds, ebmhfc7 compute-optimized ECS Bare Metal Instance family with high clock speeds, and ebmhfr7 memory-optimized ECS Bare Metal Instance family with high clock speeds are released. 2021-03-03 Some Instance family
Table 16. February 2021
Feature Description Release date Region References
Instance family The i3g instance family with local SSDs is released. 2021-02-26 All Instance family
Instance family The g7ne network-enhanced general-purpose instance family is released. 2021-02-09 Some Instance family
Table 17. January 2021
Feature Description Release date Region References
Network The maximum transmission unit (MTU) values of network interface controllers (NICs) can be specified and the Jumbo Frame feature can be enabled for instances of some instance types. 2021-01-29 Some Set the MTU size of an NIC
Instance family The gn7 GPU-accelerated compute-optimized instance family is released. 2021-01-12 Some Instance family
Image Builder Image Builder is an all-in-one image customization service provided by ECS and can be used to customize images for ECS instances across regions and Alibaba Cloud accounts. 2021-01-11 All Overview

History

Table 18. December 2020
Feature Description Release date Region References
Resource Assurance Resource Assurance is a comprehensive service that guarantees the provision of resources to meet your business needs. It can be used to quantify the amount of available resources, reserve resources, and plan private pools. 2020-12-14 Some Overview
faasutil faasutil is released. faasutil is a next-generation command line tool provided by Alibaba Cloud FPGA as a Service (FaaS). This tool simplifies the management of FPGA-accelerated instances and helps improve their stability, security, and scalability. 2020-12-08 Some
Instant access The instant access feature is available for public preview in the China (Hohhot) region. 2020-12-03 Some Enable or disable the instant access feature
Table 19. November 2020
Feature Description Release date Region References
Instance family The re6p persistent memory-optimized instance family is released. 2020-11-04 Some Instance family
Instance family The i3 instance family with local SSDs is released. 2020-11-03 Some Instance family
Table 20. October 2020
Feature Description Release date Region References
Instance family The g6se storage-enhanced instance family is released. 2020-10-23 Some Instance family
Table 21. September 2020
Feature Description Release date Region References
Preemptible instance A preemptible instance can be configured to have no protection period when it is created by calling an API operation. 2020-09-25 All
Savings plan Savings plans are provided as discount plans that can be applied to offset the bills of pay-as-you-go instances, excluding preemptible instances. 2020-09-18 All
Instance family The g6t security-enhanced general-purpose instance family and c6t security-enhanced compute-optimized instance family are released. 2020-09-08 Some
Instance family The g6a general-purpose instance family, c6a compute-optimized instance family, and r6a memory-optimized instance family are released. 2020-09-07 Some Instance family
Instance family The ebmg6a general-purpose ECS Bare Metal Instance family, ebmc6a compute-optimized ECS Bare Metal Instance family, and ebmr6a memory-optimized ECS Bare Metal Instance family are released. 2020-09-07 Some Instance family
Table 22. August 2020
Feature Description Release date Region References
Tag Tags can be added to more resources, including reserved instances. 2020-08-18 All Overview
Snapshot Snapshots can be replicated across regions to improve service reliability and availability. 2020-08-14 Some Copy a snapshot
Table 23. July 2020
Feature Description Release date Region References
Image family The image family feature is released to facilitate smooth upgrade and rollback of images. 2020-07-02 All Overview
Table 24. June 2020
Feature Description Release date Region References
Instance family The d2c compute-intensive big data instance family is released. 2020-06-23 Some Instance family
Instance family The scchfc6 compute-optimized Super Computing Cluster (SCC) instance family with high clock speeds, scchfg6 general-purpose SCC instance family with high clock speeds, and scchfr6 memory-optimized SCC instance family with high clock speeds are released. 2020-06-23 All Instance family
Instance family The ebmc6e compute-optimized ECS Bare Metal Instance family with enhanced performance, ebmg6e general-purpose ECS Bare Metal Instance family with enhanced performance, and ebmr6e memory-optimized ECS Bare Metal Instance family with enhanced performance are released. 2020-06-23 All Instance family
Storage capacity unit (SCU) SCUs can be used to offset the pay-as-you-go bills of different storage resources, such as disks, Object Storage Service (OSS) buckets, Apsara File Storage NAS file systems, and snapshots. 2020-06-23 All
Elastic Block Storage (EBS) The sequence numbers of disks attached to ECS instances can be queried. 2020-06-16 All Query the serial number of a disk
Network Virtual private clouds (VPCs) of ECS instances can be changed in the ECS console. This feature is in invitational preview. 2020-06-10 Some Change the VPC of an ECS instance
Enhanced SSD (ESSD) ESSDs at the performance level 0 (PL0 ESSDs) are in public preview in the China (Hangzhou) and China (Beijing) regions. 2020-06-10 Some
Local disk-related system event System events about local disk damages can be queried and damaged local disks can be isolated in the ECS console. 2020-06-09 All Isolate damaged local disks in the ECS console
Instance family The hfg7 general-purpose instance family with high clock speeds, hfc7 compute-optimized instance family with high clock speeds, and hfr7 memory-optimized instance family with high clock speeds are released. 2020-06-09 Some Instance family
Instance family The g6e general-purpose instance family with enhanced performance, c6e compute-optimized instance family with enhanced performance, and r6e memory-optimized instance family with enhanced performance are released. 2020-06-09 All Instance family
Instance family The ebmre6p non-volatile memory-optimized ECS Bare Metal Instance family with enhanced performance is released. 2020-06-09 Some Instance family
Table 25. May 2020
Feature Description Release date Region References
Image Technical support for the CoreOS Container Linux public images is discontinued. CoreOS Container Linux has reached its end of life, and no more security patches are provided. For security concerns, we recommend that you no longer use CoreOS Container Linux images. Alibaba Cloud will soon release Fedora CoreOS public images as a replacement. 2020-05-26 All Release notes
Reserved instance The normalization factors of instance types can be queried to help understand the computing power requirements in the splitting and merging of reserved instances and the size flexibility of regional reserved instances. 2020-05-14 All
Table 26. April 2020
Feature Description Release date Region References
Instance family The ebmre6-6t memory-optimized ECS Bare Metal Instance family with enhanced performance is released. 2020-04-28 All Instance family
Instance family The re6 memory-optimized instance family with enhanced performance is released. 2020-04-20 Some Instance family
Table 27. March 2020
Feature Description Release date Region References
Instance family The i2ne and i2gne instance families with local SSDs are released. 2020-03-11 All Instance family
Table 28. January 2020
Feature Description Release date Region References
Tag A wide range of tag features are provided. Tags can be used to control permissions of Resource Access Management (RAM) users. Tags can be added and modified by using Operation Orchestration Service (OOS). 2020-01-03 All
Instance family The d2s storage-intensive big data instance family is released. 2020-01-17 Some Instance family
Instance family The vgn6i lightweight GPU-accelerated compute-optimized instance family is released. 2020-01-16 Some Instance family
Instance family The s6 shared standard instance family is released. 2020-01-16 Some Instance family
Image Technical support for the Windows Server 2008 and Windows Server 2008 R2 public images is discontinued. We recommend that you upgrade to Windows Server 2012 or later at your earliest convenience. 2020-01-14 All Overview
Table 29. December 2019
Feature Description Release date Region References
SCU 40 GiB, 100 GiB, and 500 GiB are added as capacity options for SCUs. 2019-12-05 Some Overview
Table 30. November 2019
Feature Description Release date Region References
Tag The tag editor feature is released. Up to 5,000 resource data entries across services and regions can be queried. The tags of resources can be edited, and resource information can be exported. 2019-11-28 All Use the tag editor to manage resource tags
Snapshot The quota for automatic snapshots is increased to 1,000. 2019-11-15 All Snapshot overview
Instance family The gn6e GPU-accelerated compute-optimized instance family is released. 2019-11-14 Some Instance family
Instance family The ebmgn6e GPU-accelerated compute-optimized ECS Bare Metal Instance family is released. 2019-11-14 Some Instance family
Table 31. October 2019
Feature Description Release date Region References
Instance family The hfc6, hfg6, and hfr6 instance families with high clock speeds are released. 2019-10-15 Some Instance family
Instance family The ebmhfc6, ebmhfg6, and ebmhfr6 ECS Bare Metal Instance families are released. 2019-10-10 All Instance family
Table 32. September 2019
Feature Description Release date Region References
Disk resizing
  • Standard SSDs and ultra disks can be resized to up to 32 TiB.
  • ESSDs can be resized online.
2019-09-26 All
Instance family The ebmc6, ebmg6, and ebmr6 ECS Bare Metal Instance families are released. 2019-09-24 All Instance family
Instance family The t6 burstable instance family is released. 2019-09-12 Some Instance family
Security group The maximum number of security group rules that a security group can contain is increased to 200. 2019-09-03 All Limits
Snapshot The individual quotas for manual snapshots and automatic snapshots are increased to 256. 2019-09-02 All Snapshot overview
Table 33. August 2019
Feature Description Release date Region References
Instance family The ebmgn6v GPU-accelerated compute-optimized ECS Bare Metal Instance family is released. 2019-08-26 Some Instance family
Instance family The ebmgn6i GPU-accelerated compute-optimized ECS Bare Metal Instance family is released. 2019-08-26 Some Instance family
Image The image export feature is available in all Alibaba Cloud regions. 2019-08-21 All Export a custom image
Snapshot The snapshot service is available for commercial use. All existing and new snapshots are billed on a pay-as-you-go basis. 2019-08-21 All Snapshots
Table 34. July 2019
Feature Description Release date Region References
Instance family The g6 general-purpose instance family is released. 2019-07-30 Some Instance family
Instance family The c6 compute-optimized instance family is released. 2019-07-30 Some Instance family
Instance family The r6 memory-optimized instance family is released. 2019-07-30 Some Instance family
Instance family The ebmc5s network-enhanced compute-optimized ECS Bare Metal Instance family is released. 2019-07-30 Some Instance family
Instance family The ebmg5s network-enhanced general-purpose ECS Bare Metal Instance family is released. 2019-07-30 Some Instance family
Instance family The ebmr5s network-enhanced memory-optimized ECS Bare Metal Instance family is released. 2019-07-30 Some Instance family
Table 35. June 2019
Feature Description Release date Region References
Auto Provisioning Auto Provisioning uses auto provisioning groups to schedule and maintain computing resources. This makes it easy to deploy clusters of instances across billing methods, instance types, and zones. 2019-06-28 All Overview
ESSD The ESSD service is available for commercial use after the public preview is complete. Three performance levels of ESSDs are released. 2019-06-28 Some. For more information about the supported regions, see FAQ. ESSDs
vgn5i, lightweight GPU-accelerated compute-optimized instance family GRID drivers are provided for vgn5i instances. 2019-06-19 All Install an NVIDIA GRID driver on a vGPU-accelerated Linux instance
Table 36. May 2019
Feature Description Release date Region References
EBS Subscription disks can be created by calling API operations. 2019-05-15 All CreateDisk
Table 37. April 2019
Feature Description Release date Region References
Elastic network interface (ENI) A single ENI can be assigned multiple private IP addresses. 2019-04-28 All Assign secondary private IP addresses
EBS Data disks of an ECS instance can be resized online to meet storage requirements without restarting the instance. 2019-04-24 All Resize disks online for Linux instances
EBS System disks can be resized. 2019-04-24 All Resize disks offline for Linux instances
Snapshot Snapshots can be created for expired disks. 2019-04-20 All
Table 38. March 2019
Feature Description Release date Region References
Public image Aliyun Linux 2 public images are released. 2019-03-27 All Overview
Instance family The gn6i GPU-accelerated compute-optimized instance family is released. 2019-03-21 All Instance family
Instance family The sccgn6 GPU-accelerated compute-optimized SCC instance family is released. 2019-03-20 All Instance family
Instance family The vgn5i lightweight GPU-accelerated compute-optimized instance family is released. 2019-03-19 All Instance family
Reserved instance The reserved instance feature is in invitational preview. 2019-03-18 All Overview
Cloud Assistant Cloud Assistant is available for ECS instances in the classic network. 2019-03-01 All Install the Cloud Assistant client
Table 39. January 2019
Feature Description Release date Region References
Event notification Status change events and alert events for the recycling of preemptible instances are supported. 2019-01-29 All Overview
Table 40. December 2018
Feature Description Release date Region References
Cloud Assistant Cloud Assistant is available in the UK (London) region. 2018-12-31 All Overview
Preemptible instance Preemptible instances are billed by second. 2018-12-17 All Preemptible instances
Instance The release protection feature is supported. 2018-12-14 All Enable or disable release protection for ECS instances
ENI The DescribeNetworkInterfaces operation can be called to query the public IP address associated with an ENI. 2018-12-04 All DescribeNetworkInterfaces
Table 41. November 2018
Feature Description Release date Region References
Custom image Packer can be used to create custom images. 2018-11-30 All Use Packer to create a custom image
Instance family The re4e high memory instance family is released. 2018-11-30 All Instance family
EBS Subscription disks can be separately created and attached to subscription instances. 2018-11-29 All Create a subscription disk
Deployment set The deployment set feature is released. 2018-11-16 All Overview
Table 42. October 2018
Feature Description Release date Region References
Instance family The f3 FPGA-accelerated compute-optimized instance family is released. 2018-10-31 All Instance family
API best practices API best practices are released in the ECS console. 2018-10-19 All Create an instance by using the wizard
Table 43. September 2018
Feature Description Release date Region References
t5, burstable instance family Unlimited mode is available for the t5 burstable instance family. 2018-09-30 All Unlimited mode
Instance metadata Information of O&M system events is included in instance metadata. 2018-09-14 All Overview of ECS instance metadata
Instance health status The health status of each ECS instance is displayed on the instance details page. 2018-09-14 All View the health status of an instance
Instance family The gn6v new-generation GPU-accelerated instance family (V100 model) is released. 2018-09-12 All Instance family
Instance purchase Multiple instances can be renewed at a time, and historical instances can be purchased. 2018-09-07 All Manually renew an instance
System event API operations used to create or cancel simulated events are released. 2018-09-03 All
Billing method Subscription instances can be changed into pay-as-you-go instances. 2018-09-01 All Change the billing method of an instance from subscription to pay-as-you-go
Table 44. August 2018
Feature Description Release date Region References
Local disk The O&M of instances that have local disks attached is optimized. 2018-08-31 All Local disks
Cloud Assistant Cloud Assistant is supported in the ECS console. 2018-08-17 All Overview
Instance family SCC instance families are released. 2018-08-16 All Instance family
Table 45. July 2018
Feature Description Release date Region References
Custom image Images in the qcow2 format can be imported. 2018-07-30 All
Security group Security group rules can be modified. 2018-07-25 All Modify security group rules
Tag Tags can be added to resources when the resources are created. 2018-07-20 All Create or add a tag
Instance family The ebmc4 compute-optimized ECS Bare Metal Instance family is released. 2018-07-18 All Instance family
Snapshot The estimated remaining time required to create snapshots is displayed. 2018-07-17 All Create a snapshot of a disk
Account and user privileges Quota management is supported. 2018-07-15 All View quotas (old version)
ESSD The ESSD service is in public preview in Beijing Zone G. 2018-07-14 Beijing Zone G Disks
Instance troubleshooting System logs and screenshots can be viewed. 2018-07-13 All View system logs and screenshots
Security group A ticket can be submitted to modify the maximum numbers of instances and security group rules that can be added to a security group. 2018-07-10 All Limits
Instance family The ic5 compute-intensive instance family is released. 2018-07-09 All Instance family
Table 46. June 2018
Feature Description Release date Region References
Public image Operating systems including Red Hat can be selected from public images to create ECS instances. 2018-06-29 All Create an instance by using the wizard
Instance configuration upgrade The configurations of pay-as-you-go instances can be upgraded or downgraded across instance families. 2018-06-15 All Instance families that support instance type changes
Billing method Subscription instances can be renewed on a weekly basis. 2018-06-12 All Manually renew an instance
Security group Security groups in the classic network can be cloned to a VPC. 2018-06-06 All Clone a security group
Active O&M Phase 2 of active O&M is brought online. 2018-06-01 All Overview
Table 47. May 2018
Feature Description Release date Region References
Custom image The image compliance tool is released. 2018-05-28 All Use the image compliance tool
System event ECS system events are updated to CloudMonitor and can be queried. 2018-05-25 All Overview
Launch template The launch template feature is released. 2018-05-11 All Create a launch template
Table 48. April 2018
Feature Description Release date Region References
Billing method Pay-as-you-go instances can be changed into subscription instances. 2018-04-23 All Change the billing method of an ECS instance from pay-as-you-go to subscription
Instance configuration downgrade The configurations of expired subscription instances can be downgraded while the instances are being renewed. 2018-04-13 All Downgrade the configurations of an instance during renewal
Table 49. March 2018
Feature Description Release date Region References
GPU-accelerated instance NVIDIA GPU Cloud (NGC) GPU-accelerated containers are supported. 2018-03-28 All Deploy an NGC environment on gn5 instances
System event The system event feature is released. 2018-03-26 All Overview
ECS Bare Metal Instance ECS Bare Metal Instance is released. 2018-03-14 All Overview
Instance identity The ECS instance identity feature is released. 2018-03-01 All Use instance identities
Table 50. February 2018
Feature Description Release date Region References
ECS API The API operation used to check whether the configurations of ECS instances can be upgraded or downgraded is released. 2018-02-10 All DescribeResourcesModification
Subscription instance The number of days during which an instance stays expired before it is released is extended from 7 to 15. 2018-02-07 All Subscription
ECS API API operations used to create and query resources are released. 2018-02-02 All DescribeAvailableResource
Table 51. December 2017
Feature Description Release date Region References
No Fees for Stopped Instances (VPC-Connected) The No Fees for Stopped Instances (VPC-Connected) feature is supported for pay-as-you-go instances. 2017-12-14 All Economical mode
ENI The ENI feature is released. 2017-12-08 All Overview
FPGA-accelerated instance family The f1 FPGA-accelerated compute-optimized instance family is released. 2017-12-02 All Instance family
ECS API The API operation used to batch create instances is released. 2017-12-01 All RunInstances
Instance troubleshooting The real-time diagnostics feature is supported in the ECS console. 2017-12-01 All Automatic diagnosis system
Table 52. November 2017
Feature Description Release date Region References
Cloud Migration tool The Cloud Migration tool is released. 2017-11-27 All What is SMC?
Security group rule Security group rules can be imported and exported. 2017-11-23 All Manage security group rules
Subscription instance The auto-renewal feature can be disabled for subscription instances. 2017-11-23 All ModifyInstanceAutoRenewAttribute
Billing method API operations used to create and renew weekly subscription instances are released. 2017-11-03 All CreateInstance
Instance RAM role RAM roles can be assigned to ECS instances. 2017-11-01 All Overview
Table 53. October 2017
Feature Description Release date Region References
Elastic IP Address (EIP) The public IP addresses of instances in VPCs can be converted into EIPs. 2017-10-31 All Convert the static public IP address of an instance in a VPC to an EIP
Preemptible instance The preemptible instance feature is released. 2017-10-18 All Overview
t5, burstable instance family The t5 burstable instance family is released. 2017-10-09 All Overview
Table 54. September 2017
Feature Description Release date Region References
Billing method Bills of pay-as-you-go instances and disks are accurate to the second and generated by hour. 2017-09-29 All Pay-as-you-go
gn5i instance family The gn5i GPU-accelerated compute-optimized instance family is released. It is applicable to deep learning and online inference scenarios. 2017-09-23 All Instance family
Disk encryption Disks can be encrypted. 2017-09-05 All Encryption overview
Table 55. August 2017
Feature Description Release date Region References
Security group rule Security group rules can be configured based on 5-tuples. 2017-08-31 All Security group quintuple rules
ClassicLink ClassicLink allows instances in the classic network to be connected to instances in VPCs. 2017-08-25 All Network types
Instance family The new-generation instance families with high clock speeds and instance families with local SSDs are released. They are powered by Skylake processors and support 25 Gigabit Ethernet. 2017-08-22 All Instance family
ECS API The API operation used to change the bandwidth configurations of instances is released. 2017-08-17 All ModifyInstanceNetworkSpec
Custom image Custom images can be imported. 2017-08-10 All Import custom images
Table 56. July 2017
Feature Description Release date Region References
Image Technical support for the Windows Server 2003 public images is discontinued. We recommend that you upgrade to Windows Server 2012 or later at your earliest convenience. 2017-07-20 All Overview
Security group Security group rules can be configured to isolate the instances in a security group from each other. 2017-07-07 All Network isolation within a basic security group
Table 57. June 2017
Feature Description Release date Region References
Classic network The classic network is unavailable for users who create ECS instances at or after 12:00:00 on June 16, 2017 (UTC+8) for the first time. We recommend that you use VPC. 2017-06-16 All What is a VPC?
Table 58. May 2017
Feature Description Release date Region References
Instance RAM role The API operation used to manage instance RAM roles is released. 2017-05-26 All Use an instance RAM role by calling API operations
Instance family The network-enhanced instance family is released. 2017-05-23 All Instance family
Instance family The d1 storage-intensive instance family is released. 2017-05-12 All Instance family
Security group The default security group rule is modified to expose only Internet Control Message Protocol (ICMP) ports, Transmission Control Protocol (TCP) port 22, and TCP port 3389. 2017-05-11 All Overview
Security group Security groups can be backed up, overwritten, and restored. 2017-05-10 All Restore security group rules
Table 59. April 2017
Feature Description Release date Region References
SSH key pair The SSH key pair feature is released. 2017-04-25 All Overview
Table 60. February 2017
Feature Description Release date Region References
Custom image cloud-init supports some custom images. 2017-02-24 All Install cloud-init
Instance family The i1 I/O optimized instance family with local SSDs is released. 2017-02-17 All Instance family
Snapshot System disk snapshots can be used to create data disks. 2017-02-15 All Create a disk from a snapshot
Instance family The gn4 GPU-accelerated compute-optimized instance family is released. 2017-02-14 All Instance family
Table 61. January 2017
Feature Description Release date Region References
Instance family The ga1 GPU-accelerated visualization and compute-optimized instance family is released. 2017-01-24 All Instance family
Instance family The se1 dedicated instance family is released. 2017-01-21 All Instance family
Table 62. 2016
Feature Description Release date Region References
Snapshot Snapshot 2.0 is released. 2016-03-15 All Snapshot overview
Disk resizing System disks can be resized. 2016-01-15 All Resize disks offline for Linux instances
Table 63. 2015
Feature Description Release date Region References
Custom image Custom images can be imported. 2015-12-15 All Instructions for importing images
Security group Security groups are supported in the ECS console. 2015-11-02 All Create a security group
Alibaba Cloud Marketplace image Alibaba Cloud Marketplace images are available for commercial use. 2015-09-02 All Alibaba Cloud Marketplace images
Tag The tag feature is released. 2015-08-20 All Overview
System disk The operating systems of pay-as-you-go instances can be replaced. 2015-08-13 All Replace the operating system of an instance by using a public image
Custom image Custom images can be shared. 2015-05-15 All Share or unshare a custom image
Disk resizing Disks can be resized offline. 2015-04-20 All Overview
Custom image The image replication feature is released. 2015-01-26 All Copy a custom image
Table 64. 2014
Feature Description Release date Region References
EBS The independent disk feature is released. 2014-08-22 All Elastic Block Storage devices