This topic introduces the feature releases of various ECS instance versions. New features will be gradually released in each region. We welcome you to explore them.

September 2026

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Instance	Offsetting resources - RSC supports projects and tags.	All	GA	Purchase Reserved Storage Capacity (RSC)
2	Instance		Added support for managing files in ECS instances via Terminal, including preview, upload, download, rename, and delete operations.	All	Beta	Managing files in ECS instances via Terminal
3	Security	Official launch of resetting the instance login password online.	All	GA	Resetting login password
4	Deployment set	Official launch of instance deployment at rack and switch granularity through the "Availability Group policy" feature.	All	GA	Managing deployment sets

July 2026

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Image	Spot instances and ECS instances whose billing method is Pay-as-you-go can use marketplace images.	All	GA	Marketplace image
2	Event monitoring	Shutdown maintenance is supported for Local SSD instances.	All	Beta	Resolving faults through shutdown maintenance Scheduled O&M events
3	Performance burst	Supports enabling performance burst for ESSD FlexPL volumes during instance creation.	All	Beta	Purchasing an instance by following the wizard

February 2026

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Image	The image inspection feature supports detection of O11yAgent plugin information.	All	GA	Check item description
2	Patch management	Patch management is now available. You can use this service to automatically install security and other types of patches on your ECS instances in batches, ensuring compliance and system security.	China (Beijing)	Beta	Patch management overview

January 2026

Serial number	Feature	Feature description	Release region	Phase	Documentation
1	Event monitoring	Added a scheduled maintenance window to enable flexible and automated O&M.	All	Beta	Scheduled maintenance window overview
2	VolcanoEngine assistant	Supports intelligent diagnosis with VolcanoEngine assistant in instance login failure scenarios.	All	GA	Using the console to log in to a Linux instance Using the console to log in to a Windows instance
3	Image	Official launch of the marketplace image feature.	China (Beijing), China (Shanghai), China (Guangzhou), Asia Pacific (Johor)	GA	Marketplace image

December 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Instance	Supports more resolution options for instances running Windows Server and Ubuntu operating systems.	All	Beta	Changing the screen resolution
2	Event	Discontinuation of the event notification subscription feature.	All	GA	Configure event monitoring notifications Announcement on discontinuation of the "Subscribe to event notifications" feature
3	Image	Supports creating custom images using CP.	All	GA	Creating custom images using CP
4			Supports copying a custom image from a region in the Chinese mainland to Asia Pacific (Johor).	All	Beta	Copying custom images
5			Official launch of the features of copying and sharing images within the same region.	All	GA	Copying shared images
6	Elastic remote disk	Supports elastic remote disks with high throughput, high IOPS, and cost-effectiveness for storing temporary data.	All	Beta	Elastic remote disk

November 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Snapshot	Up to 256 manual snapshots and 1,024 automatic snapshots can be created for each volume.	All	GA	Snapshot overview Create snapshots Creates an auto snapshot policy Creates a snapshot consistency group
2	Storage placement group	Supports associating a volume with a storage placement group and specifying a sub-placement group ID via the console. Based on metrics such as cluster health and resource utilization, the system deploys volumes with different sub-placement group IDs to separate physical clusters, thereby achieving data isolation and protection.	All	GA	Managing placement groups
3	Instance	Supports using an instance created based on a whole image to create another instance with the same configurations.	All	GA	Purchasing an instance with the same configuration
4	Image	Custom image detection: Supports one-click repair of high-risk issues in Windows images. Additionally, new detection items for Linux and Windows images have been added.	All		Beta	Checking custom images and addressing risk items
5	ESSD FlexPL volume	By default, the average random write latency of newly created ESSD_FlexPL volumes in some availability zones is within 0.2 ms, and in other regions, the latency ranges from 0.3 to 0.5 ms.	China (Beijing), China (Shanghai), and Asia Pacific (Johor)	GA	Volume specification ESSD FlexPL volume
6	Instance diagnosis	Supports comprehensive instance diagnosis.	All	GA	Instance diagnosis
7	Monitoring	Supports second-level monitoring for operating system-related metrics.	All	GA		Viewing basic monitoring data/operating system monitoring data

October 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Cross-account snapshot sharing	Supports cross-account snapshot sharing. You can share snapshots with other accounts, and the recipients can use shared snapshots to create volumes.	All	GA	Cross-account snapshot sharing
2	Image	Supports importing Windows Server 2022 Standard Edition images.	China (Beijing), China (Shanghai), China (Guangzhou)	GA	Image import requirements
3	Marketplace image	Supports selecting marketplace images provided by VolcanoEngine or other image providers.	China (Beijing), China (Shanghai), China (Guangzhou)	Beta	Marketplace image
4	VolcanoEngine assistant	Supports exception diagnosis for instances that are in an abnormal status.	China (Beijing), China (Shanghai), China (Guangzhou), and China (Hong Kong)	GA	Exception diagnosis for instances in an abnormal status
5	VolcanoEngine assistant			Supports creating authorization roles for services.		GA	Using VolcanoEngine assistant for troubleshooting

September 2025

Serial number	Feature	Feature description	Release regions	Phase	Documentation
1	Snapshot chain capacity	Supports viewing snapshot chain capacity.	All	GA	Viewing snapshot chains DescribeSnapshotChains
2	Instance diagnosis	Instance device detection is updated to GA.			GA	Instance diagnosis
3	Instance	When creating an instance with the same configuration as a custom image-based instance, you can use the preconfigured credentials (key pair or password) from the image to log in to the new instance.			GA	Purchasing an instance with the same configuration
4	Image	Custom image detection feature supports one-click repair of items for which fixing is strongly recommended identified in Linux images, and supports detection of NVIDIA, OFED, and DOCA versions installed within an image.			Beta	Checking custom images and addressing risk items
5	Monitoring	Supports monitoring disk space utilization at the granularity of disk mount points.			GA	Viewing basic monitoring data/operating system monitoring data
6	Event	Supports configuring the nofail parameter in/etc/fstab for an instance.			GA	Method 2: Resolve local volume failures through instance redeployment
7	Launch template	Supports selecting "Spots" as the billing method during creation of a launch template/version.			GA	Creating instance launch templates Creating versions of instance launch templates
8	O&M orchestration	Supports creating custom templates.	All	GA	Create custom templates
9	O&M orchestration		All	Supports creating orchestration plans via custom templates.		GA	Creating orchestration plans

August 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Volume anti-affinity	Supports associating a volume with a storage placement group and specifying a sub-placement group ID via API. Based on metrics such as cluster health and resource utilization, the system deploys volumes with different sub-placement group IDs to separate physical clusters, thereby achieving data isolation and protection.	All	GA	CreateVolume CreatePlacementGroup DescribePlacementGroups DescribePlacementGroupDetails ModifyPlacementGroup DeletePlacementGroup
2	Instance metadata	Supports accessing instance metadata through security hardening mode.	All	Beta	Viewing instance metadata
3	Additional performance	Supports modifying the additional performance of TSSD volumes and ESSD FlexPL volumes in a batch.	All	GA	TSSD volume ESSD FlexPL volume
4	Volume specification	Supports modifying specifications of volumes in a batch.	All	GA	Modifies the specifications of a volume

July 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Image	Supports copying and sharing images within the same region.	All	Beta	Copying shared images
2				Supports selecting a whole image to replace the operating system.		GA	Change the operating system
3				Supports copying a custom image from a region in the Chinese mainland to Asia Pacific (Johor).		Beta	Copying custom images
4	Network and security group	Supports replacing instance VPCs or subnets in a batch.			GA	Changing VPC or subnet
5	Network and security group			Supports batch adding, replacing, or removing multiple instances to/from security groups.		GA	Changing security groups
6	Instance diagnosis	Supports new diagnostic items related to network service monitoring, including those targeted at network PPS, BPS, and session limits.	Asia Pacific (Johor), China (Shanghai), China (Guangzhou), China (Beijing)	GA	Diagnosis item overview
7				Added diagnostic capabilities for OpenSSL, connectivity of key instance-dependent components, and other aspects.	Diagnosis item overview		GA
8				Supports instance diagnosis via intelligent assistant.		GA	Use cloud assistant for troubleshooting
9	O&M orchestration	Supports the orchestration plan feature.	China (Shanghai), China (Beijing), China (Guangdong), Asia Pacific (Johor), China (Hong Kong)	GA	Orchestration overview
10	Monitoring	Windows supports process monitoring.	All	GA	Managing process monitoring data
11	Monitoring				Supports viewing metrics such as GPU encoder usage, GPU decoder usage, and GPU memory usage of instance GPU/RDMA.			Viewing GPU/RDMA monitoring data of instances
12	Event	Added InstanceDiskStalled (Seriously impaired disk performance for instance) event.					Event type overview
13					Supports event levels, including critical, warning, and informational levels.			Querying and handling events
14					Certain events support restoring normal operation by restarting the instance. Certain events support root cause operations for instance exceptions.			Querying and handling events

June 13, 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Monitoring	Supports manually adding custom processes.	China (Shanghai), China (Beijing), China (Guangdong), Asia Pacific (Johor), China (Hong Kong)	GA	Managing process monitoring data

June 10, 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Instance	The instance deletion protection capability was launched.	All	GA	Instance deletion protection
2	O&M orchestration	New ECS batch operations that are dependent on O&M orchestration have been added.			GA	Batch Send remote commands Downloading files to multiple instances Changing instance hostname Add multiple instances to a scaling group
3	Image	Supports detecting OFED driver version information via the image inspection feature.			GA	Check item description
4				Supports copying custom images between regions outside the Chinese mainland.		Beta	Copying custom images
5				Official launch of the features of importing and exporting full machine images.		GA	Importing custom images Exporting custom images
6	Event monitoring	Supports automatic cancellation of events upon host machine changes (such as manual hot or cold migration, evacuation, type changes, power-on, and restart).			GA	Querying and handling events

June 04, 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	O&M orchestration	Common O&M tasks (such as batch operations on instances and images) support configuring a maximum error count.	China (Beijing), China (Shanghai), China (Guangdong), Asia Pacific (Johor), Asia Pacific (Jakarta)	GA	Creating tasks for batch instance operations

May 16, 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Snapshot	The number of snapshots that can be created for each volume has been increased. Previously, each volume supported creating up to 10 manual snapshots and 64 automatic snapshots. It now supports up to 64 manual snapshots and 256 automatic snapshots.	All	GA	Limits Create snapshots Creates an auto snapshot policy Creates a snapshot consistency group CreateSnapshot CreateAutoSnapshotPolicy CreateSnapshotGroup

April 29, 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Instance diagnosis	Added diagnostic items for Linux-related configuration and instance configuration management.	Asia Pacific (Johor), China (Shanghai), China (Guangzhou), China (Beijing)	GA	Diagnosis item overview

April 11, 2025

Serial number	Feature	Feature description	Release regions	Phase	Documentation
1	Snapshot	Supports instant snapshot availability. There is no need to wait for the snapshot creation progress to reach 100% before using it to create a new volume.	All	GA	Snapshot instant availability
2	Instance	Supports users to open "Cloud Computer" on their own web page to navigate to VolcanoEngine ECS Terminal for ECS password-free login.			GA	Console embedding - Using ECS Terminal to log in to instances in external systems
3	Deployment set	The "Availability Group policy" feature supports dividing a deployment set into a maximum of 7 groups and supports anti-affinity at the rack or switch level.			Beta	Managing deployment sets
4	Metric monitoring	Supports displaying top process monitoring data and the number of processes.			GA	View process monitoring data
5	Event monitoring	Supports filtering and displaying system events by category, such as unexpected O&M events and fee warning events. For planned maintenance events, the configuration of O&M windows and O&M attributes is supported.			GA		Querying and handling events Configure event monitoring notifications
6	Image	Official launch of the feature of selecting BYOL (Bring Your Own License) to activate the operating system during custom image import.			GA	Importing custom images
7				Supports importing images of Red Hat Enterprise Linux and SUSE Linux Enterprise Server operating systems.		GA	Image import requirements
8				Supports importing and exporting whole images.		Beta	Importing custom images
9				Image detection: Official launch of the custom image function supporting Windows Server OS detection.		GA	Image detection overview

April 10, 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Orchestration	Supports associating key pairs with instances in batches.	All	GA	Associating instances with key pairs
2	Orchestration		All	GA	Supports the feature of a loop task list to view batch operation nodes and execution details of sub-tasks.	Managing orchestration tasks

March 11, 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Reinitialization	Supports the reinitialization feature, which allows you to restore a volume to its state at creation.	All	GA	Reinitialization ReInitializeVolume

March 7, 2025

Serial number	Feature	Feature description	Release regions	Phase	Documentation
1	Cloud assistant	Product name modified, former Batch Job rebranded as cloud assistant.	All	GA	[Product name modified] Former Batch Job rebranded as cloud assistant
2					Added capability of login password security verification for Windows-based commands when the execution user is not "system".	Creating jobs
3					Optimized job-related descriptions.	Creating jobs
4					Added capability of login password security verification for custom commands of type Windows PowerShell or Windows Bat when the execution user is not "system".	Clone public commands into custom commands

February 28, 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Orchestration	Supports the feature of temporary bandwidth upgrade.	Asia Pacific (Johor), China (Guangzhou), China (Shanghai), China (Beijing)	Beta	Creating temporary bandwidth upgrade tasks
2				Supports tag and project features.		GA	Creating tasks for batch instance operations Creating Orchestration tasks
3				Supports viewing historical execution logs in Orchestration.				View task details
4				Optimized names of orchestration task steps.				Summary of orchestration steps

February 14, 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Instance	Supports online reset of instance login password.	All	Beta	Resetting instance login password online
2				Supports configuring dynamic verification for the instance deletion scenario.		GA	Instance deletion
3				Instance diagnostic links are displayed on the instance login page. If you fail to log in, this enables one-click diagnosis for quick troubleshooting.		GA	Using the console to log in to a Linux instance Using the console to log in to a Windows instance
4	Image	Supports detecting custom images based on the Windows Server operating system via the image inspection feature.			Beta	Image detection overview
5	Monitoring	Supports viewing and modifying the scheduled maintenance time.			GA	Viewing and changing the maintenance time
6				Supports file system exception events and corresponding O&M operations.				Authorizing shutdown repair Event type overview
7				Optimized event names.				Configuring automatic O&M for system events Event type overview
8	Cloud assistant	Supports installing and using cloud assistant Agent on CentOS 6.9 images.			GA	Cloud assistant overview
9	Cloud assistant			Supports the public command for online password reset.	GA			Managing public commands
10	VPC	The feature of changing the VPC or subnet for an ECS instance was officially launched.	All	GA	Changing VPC or subnet

January 22, 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Instance diagnosis	Added network issue diagnosis scenarios.	Asia Pacific (Johor)	Beta	Instance diagnosis Diagnosis item overview

January 15, 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Instance type family	Launch of Shared Economic e family.	All	GA	Shared Economic e

January 10, 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	RSC	Supports calling the PurchaseReservedStorageCapacity interface to specify the EffectiveAt parameter. This parameter specifies the time when the RSC takes effect.	All	GA	PurchaseReservedStorageCapacity

January 7, 2025

Serial number	Feature	Feature description	Release regions	Stage	Documentation
1	Instance type family	Beta launch of HPC CPU hpcg3ald instances.	China (Beijing)	Beta	HPC CPU
2	Instance diagnosis	Supports new diagnostic scenarios, including security risk detection and operational behavior audit.	China (Guangzhou), China (Shanghai), Asia Pacific (Johor), China (Beijing)	GA	Instance diagnosis
3						Added policy authorization as a prerequisite for first-time use of the instance diagnosis feature.
4						Added limits for the instance diagnosis feature to improve product stability, such as on the number of diagnostics, diagnostic intervals, and diagnostic report retention time.
5					Supports new diagnostic items, such as security risks and cost management.		Diagnosis item overview
6					Added root cause diagnosis to events.		Querying and handling events

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