Release notes for csi-plugin - Container Service for Kubernetes

You can use csi-plugin to mount and unmount volumes. By default, Container Service for Kubernetes (ACK) allows you to mount the following types of volumes by using csi-plugin: disk volumes, File Storage NAS (NAS) volumes, and Object Storage Service (OSS) volumes. This topic describes the overview, usage notes, and release notes for csi-plugin.

Introduction

The csi-plugin component provided by Alibaba Cloud follows the standard specification of Container Storage Interface (CSI) and allows you to mount storage media such as disks, NAS file systems, and OSS buckets. By default, the latest version of csi-plugin is installed when you create ACK clusters of Kubernetes 1.16 or later. You can directly use csi-plugin to mount storage services provided by Alibaba Cloud after your cluster is created. The csi-plugin component supports volume lifecycle management. You can use csi-plugin to create, mount, unmount, delete, and expand volumes.

Usage notes

For more information about how to use csi-plugin, see CSI overview.

Important

To use csi-plugin 1.22.8-8d3a569-aliyun and later versions, make sure that the Kubernetes version of your ACK cluster is later than 1.20.
To ensure the stability of clusters that run Kubernetes 1.20 or later, we recommend that you update csi-plugin in the clusters to 1.24.9-74f8490-aliyun or later.
The csi-plugin component in ACK Edge clusters support only NAS volumes.
When you upgrade csi-plugin, make sure that csi-provisioner is upgraded to the same version.

Release notes

November 2024

Version number	Image address	Release date	Description	Impact
v1.26.11-b093aed-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.26.11-b093aed-aliyun	2024-11-01	The metrics related to NAS are fixed, and metrics at byte-precision are added. The `forceDelete` field is added to forcibly delete disk snapshots. The instant access feature is enabled for disk snapshots by default.	No impact on workloads. Important This version is a Backport version, which supports only ACK clusters that run Kubernetes whose version is in the range of 1.20 to 1.24.

October 2024

Version number

Image address

Release date

Description

Impact

v1.31.3-df937b8-aliyun

registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.31.3-df937b8-aliyun

2024-10-30

The issue that OSS volumes fail to be mounted during node auto-repair is fixed.
Disk mounting and unmounting are accelerated.
The security hardening mode in the metadata server of Elastic Compute Service (ECS) is supported in CSI.
The default version of ossfs is upgraded to 1.91.4.
- The deadlock issue that occasionally occurs when disk resources are insufficient is fixed.
- The issue that custom Multipurpose Internet Mail Extensions (MIME) types are not applied correctly is fixed.

No impact on online services when you Install or upgrade components.

Faster disk mounting and unmounting in concurrent scenarios may increase cluster resource usage:

The throttling for the csi-provisioner client is increased from the default of 5 to 10, and the number of threads handling requests is increased from 10 to 16.
When many Persistent Volume Claims (PVCs) and Persistent Volumes (PVs) are used, the API server resource usage of the cluster will slightly increase.
When many PVCs and PVs are used, the resource usage of csi-provisioner will slightly increase.

Important

Only ACK clusters that run Kubernetes 1.26 and later support this version.

September 2024

Version number	Image address	Release date	Description	Impact
v1.31.1-e749bf2-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.31.1-e749bf2-aliyun	2024-09-23	Mounting disks to an ECS instance is supported in ACK Lingjun clusters. Mounting disks to an ECS instance is supported in ACK Edge clusters. Mounting disks to an ECS instance is supported in ACK One. The managed version of csi-provisioner is supported in ACK managed clusters. Elastic ephemeral disks (EEDs) are supported. Cross-regional disks are supported. Object Storage Service (OSS) monitoring dashboard is updated.	No impact on workloads. Important Only ACK clusters that run Kubernetes 1.26 and later support this version.
v1.26.10-ca674a3-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.26.10-ca674a3-aliyun	2024-09-12	The idempotence issue that may occur during retries for disk creation is fixed. Residual mount directories from Kubernetes versions 1.22 and earlier are automatically removed.	No impact on workloads. Important This version is a Backport version, which supports only ACK clusters that run Kubernetes whose version is in the range of 1.20 to 1.24.

August 2024

Version number	Image address	Release date	Description	Impact
v1.30.4-fe12624-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.30.4-fe12624-aliyun	2024-08-29	The default version of ossfs is upgraded to 1.91, and the mounting process for OSS is optimized. DiskParallelAttach feature can be enabled for concurrent mounting of cloud disks.	This upgrade optimizes the OSS mounting process. For more information, see [Product changes] ossfs version upgrade and mounting process optimization in CSI. Important Only ACK clusters that run Kubernetes 1.26 and later support this version.

July 2024

Version number	Image address	Release date	Description	Impact
v1.30.3-921e63a-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.30.3-921e63a-aliyun	2024-07-01	Ubuntu nodes can be used. NAS file system can be mounted on Alibaba Cloud Linux 3 using Transport Layer Security (TLS) protocol. The issue that encrypted disks occasionally fail to be formated is fixed.	No impact on workloads. Important Only ACK clusters that run Kubernetes 1.26 and later support this version.
v1.26.9-9942088-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.26.9-9942088-aliyun	2024-07-01	The mounting retry logic of NAS and CPFS-NFS is optimized.	No impact on workloads. Important This version is a Backport version, which supports only ACK clusters that run Kubernetes whose version is in the range of 1.20 to 1.24.

May 2024

Version number	Image address	Release date	Description	Impact
v1.30.1-98960d8-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.30.1-98960d8-aliyun	2024-05-27	Feature gates can be configured to specify a new ossfs version.	No impact on workloads. Important Only ACK clusters that run Kubernetes 1.26 and later support this version.
v1.26.8-e724570-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.26.8-e724570-aliyun	2024-05-07	The issue that ossfs scans the mlocate directory is fixed. For more information, see [Component notice] The mount targets of OSS volumes are occupied by default OS software such as mlocate during mount path scanning. The issue that a disk fails to be mounted due to kubelet upgrade is fixed.	No impact on workloads. Important This version is a Backport version, which supports only ACK clusters that run Kubernetes whose version is in the range of 1.20 to 1.24.

April 2024

Version number	Image address	Release date	Description	Impact
v1.28.6-01f3845-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.28.6-01f3845-aliyun	2024-04-15	The role-based access control (RBAC) permissions are split. Permissions on csi-provisioner and csi-plugin are separated. RAM Roles for Service Accounts (RRSA) authentication is supported for ossfs. Access points are supported by NAS.	No impact on workloads. Important Only ACK clusters that run Kubernetes 1.26 and later support this version.

February 2024

Version number	Image address	Release date	Description	Impact
v1.28.5-7785921-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.28.5-7785921-aliyun	2024-02-29	The maximum number of disks that can be mounted to a node can be automatically determined based on the type of the node. The globalmount corruption umount logic for deploying ossfs in pods is optimized.	No impact on workloads. Important Only ACK clusters that run Kubernetes 1.26 and later support this version.

January 2024

Version number	Image address	Release date	Description	Impact
v1.28.3-eb95171-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.28.3-eb95171-aliyun	2024-01-31	PL-0 Enterprise SSDs (ESSDs) of 1 GiB are supported. Metrics related to the root file systems of pods can be exposed.	No impact on workloads. Important Only ACK clusters that run Kubernetes 1.26 and later support this version.
v1.26.7-84a34bb-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.26.7-84a34bb-aliyun	2024-01-31	PL0 ESSDs of 1 GiB are supported. Metrics related to the root file systems of pods can be exposed. ossfs can be deployed in a non-containerized way.	No impact on workloads. Important This version is a Backport version, which supports only ACK clusters that run Kubernetes whose version is in the range of 1.20 to 1.24.

December 2023

Version number	Image address	Release date	Description	Impact
v1.28.2-52291d4-aliyun	registry-{{.Region}}-vpc.ack.aliyuncs.com/acs/csi-plugin:v1.28.2-52291d4-aliyun	2023-12-30	The default NAS setting `tcp_slot_table_entries = 128` is supported. For more information, see How do I change the maximum number of concurrent NFS requests? The issue that occurs if you run ossfs in pods is fixed. No memory cache is allocated to the `external-resizer` pod. This reduces the memory usage of the volume plug-in.	No impact on workloads. The issue that the mount target of an OSS volume is occupied by software such as mlocate is fixed. For more information, see [Component notice] The mount targets of OSS volumes are occupied by default OS software such as mlocate during mount path scanning. Important Only ACK clusters that run Kubernetes 1.26 and later support this version.
v1.28.1-de1a873-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.28.1-de1a873-aliyun	2023-12-06	OSS volumes can be mounted to pods deployed on instances that support confidential computing. The StorageClass parameter can be customized on the Add-ons page of the ACK console. The disk rate limiting issue is fixed.	No impact on workloads. Important Only ACK clusters that run Kubernetes 1.26 and later support this version. In csi-plugin 1.28.1, if you run ossfs in pods, the `/etc/mime.types` file generated on the node by using `mailcap` or `mime-support` does not take effect. If you are using the file, do not update csi-plugin to 1.28.1.

November 2023

Version number	Image address	Release date	Description	Impact
v1.26.6-26b1327-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.26.6-26b1327-aliyun	2023-11-17	ossfs can be run in pods.	No impact on workloads. Important Only ACK clusters that run Kubernetes 1.26 and later support this version. In csi-plugin 1.26.6, if you run ossfs in pods, the `/etc/mime.types` file generated on the node by using `mailcap` or `mime-support` does not take effect. If you are using the file, do not update csi-plugin to 1.26.6.

September 2023

Version number	Image address	Release date	Description	Impact
v1.26.5-56d1e30-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.26.5-56d1e30-aliyun	2023-09-30	Inventory check can be skipped when you check the disk types supported by a node. lifseaOS is supported by OSS. Persistent volume claim (PVC) and persistent volume (PV) tags are added to disk volumes by default. An annotation is added to specify the maximum number of disks that can be mounted to a node. Rescheduling is supported during disk creation.	No impact on workloads.

August 2023

Important

To update the CSI plug-in to 1.26.4, you must update csi-provisioner and csi-plugin to 1.26.4 at the same time.

Version number

Image address

Release date

Description

Impact

v1.26.4-e3de357-aliyun

registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.26.4-e3de357-aliyun

2023-08-31

The maximum number of disks that can be mounted to a node can be automatically determined under certain limits.
The OSS domain name concatenation issue is fixed.
The logic for using metric is optimized.

No impact on workloads.

v1.26.3-796c9dc-aliyun

registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.26.3-796c9dc-aliyun

2023-08-14

The method used to obtain credentials is updated.
Several NAS issues are fixed.
The pprof port can be specified.

July 2023

Version number	Image address	Release date	Description	Impact
v1.26.2-9d15537-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.26.2-9d15537-aliyun	2023-07-15	The RPM Package Manager (RPM) version of alinas is updated. Several NAS issues are fixed. ossfs installation can be retried.	No impact on workloads.

May 2023

Version number	Image address	Release date	Description	Impact
v1.26.1-e45b407-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.26.1-e45b407-aliyun	2023-05-29	The issue that encrypted disks occasionally fail to be mounted is fixed.	No impact on workloads.

April 2023

Version number	Image address	Release date	Description	Impact
v1.24.10-7ae4421-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.24.10-7ae4421-aliyun	2023-04-12	Local disks of the Loopdevice type are supported. Mounting issues related to instance types equipped with local NVMe SSDs are fixed.	No impact on workloads.

March 2023

Version number	Image address	Release date	Description	Impact
v1.24.9-74f8490-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.24.9-74f8490-aliyun	2023-03-15	The observabilities of Container Network File System (CNFS) can be used to identify issues caused by I/O operations on NAS clients. Cluster stability is improved and known issues are fixed.	No impact on workloads.

February 2023

Important

If your cluster contains nodes that use CentOS 7.9 images and the xfs file system is used to persist data, do not update csi-plugin to this version or later. The kernel of CentOS 7.9 is outdated and no longer suitable for this csi-plugin version. In this case, if you update csi-plugin to this version or later, errors are reported in the pods to which the xfs file system is mounted. Other file systems are not affected.

Version number	Image address	Release date	Description	Impact
v1.24.7-48214b0-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.24.7-48214b0-aliyun	2023-02-20	The issue that disk resizing fails because sidecar containers are deployed by using custom images is fixed. The issue that ESSD creation fails because multiple performance levels (PLs) are specified is fixed. The base image is upgraded to Alinux3.	No impact on workloads.

January 2023

Version number	Image address	Release date	Description	Impact
v1.24.5-39a3970-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.24.5-39a3970-aliyun	2023-01-30	Some event notifications are optimized to improve user experience.	No impact on workloads.

December 2022

Version number	Image address	Release date	Description	Impact
v1.24.4-7371f039-aliyun	registry-vpc.{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.24.4-b0a6692-aliyun	2022-12-02	The deletion protection feature is supported for disks. Anolis OS is supported. Statically provisioned OSS volumes can be mounted to ACK Lingjun managed clusters. Hot update is supported by the CSI caching client. The performance of continuous integration and continuous delivery (CI/CD) pipelines and data distribution is improved.	No impact on workloads.

October 2022

Version number	Image address	Release date	Description	Impact
v1.24.3-55228c1-aliyun	registry.cn-{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.24.3-55228c1-aliyun	2022-10-30	csi-plugin can be deployed on ECS Bare Metal instances that run the Kylin operating system. Multiple `PLs` are supported. The initialization logic is optimized.	No impact on workloads.

September 2022

Version number	Image address	Release date	Description	Impact
v1.24.2-5b34494d-aliyun	registry.cn-{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.24.2-5b34494d-aliyun	2022-09-28	Kubernetes 1.24 is supported. OSS bucket lifecycle management is supported by CNFS. Observability is supported by the caching feature of CNFS.	No impact on workloads.
v1.24.1-5c38ee7-aliyun	registry.cn-{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.24.1-5c38ee7-aliyun	2022-09-01	Kubernetes 1.24 is supported.	No impact on workloads.

August 2022

Version number	Image address	Release date	Description	Impact
v1.22.14-820d8870-aliyun	registry.cn-{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.22.14-820d8870-aliyun	2022-08-25	I/O operation monitoring is supported when OSS volumes are mounted to pods. ossfs is optimized for downloads of large files. The default block size for block downloads is changed from 5 MB to 20 MB. The number of concurrent download threads is changed from 5 to 20. The protocol for API calls of all Alibaba Cloud services is changed from HTTP to HTTPS. The ConfigMap used to configure canary release settings is deleted from Cloud Parallel File Storage (CPFS) 2.0 and alinas. Snapshots can be created for ESSDs during disk resizing.	No impact on workloads.

July 2022

Version number	Image address	Release date	Description	Impact
v1.22.12-b797ad9-aliyun	registry.cn-{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.22.12-b797ad9-aliyun	2022-07-28	Snapshots can be created for mountable disks. The status of the node to which a disk is mounted can be checked after the disk is unmounted. You can determine whether to recheck the mounting status of the node based on the status.	No impact on workloads.
v1.22.11-abbb810e-aliyun	registry.cn-{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.22.11-abbb810e-aliyun	2022-07-13	Disks can be mounted to Edge Node Service (ENS) nodes. Dynamically and statically provisioned volumes that use CPFS 2.0 are supported. The caching feature provided by the CNFS client is supported. Statically provisioned alinas volumes are supported and TLS can be used for encrypted transmission. Statically provisioned OSS volumes can be mounted to JindoFS. ossfs 1.87 is released. The issue that OSS volumes fail to be mounted due to duplicate entries in concurrent processing scenarios is fixed.	No impact on workloads.

March 2022

Important

To use csi-plugin 1.22.8-8d3a569-aliyun and later, make sure that the Kubernetes version of your cluster is later than 1.20.

Version number	Image address	Release date	Description	Impact
v1.22.8-8d3a569-aliyun	registry.cn-{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.22.8-8d3a569-aliyun	2022-03-16	Note The Kubernetes version of your ACK clusters must be later than 1.20. The issue that ossfs runs with a delay of 1 second on Alibaba Cloud Linux 3 is fixed. New features that are provided by CSI 1.22 are supported for clusters that run Kubernetes 1.22. IOPS limits and throughput limits can be specified in cgroups for Logical Volume Manager (LVM) volumes. NVMe disks can be expanded. Vulnerabilities in the CentOS 7 base image are patched.	No impact on workloads.

December 2021

Important

When you update the CSI plug-in, you must update csi-provisioner before you update csi-plugin.

Version number

Image address

Release date

Description

Impact

v1.20.8-ba07e52-aliyun

registry.cn-{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.20.8-ba07e52-aliyun

2021-12-22

TLS authentication is supported by LVM.
If the quota feature is enabled for a NAS file system and the NAS file system is mounted in subpath mode, you must disable the quota feature before you can delete the PV that is used to mount the NAS file system.

No impact on workloads.

November 2021

Version number	Image address	Release date	Description	Impact
v1.20.7-aafce42-aliyun	registry.cn-{{regionID}}.aliyuncs.com/acs/csi-plugin:v1.20.7-aafce42-aliyun	2021-11-26	The issue that ossfs cannot synchronize data in real time is fixed. The issue that NAS volumes fail to be mounted is fixed.	No impact on workloads.

October 2021

Version number	Image address	Release date	Description	Impact
v1.20.6-2be29b1-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.20.6-2be29b1-aliyun	2021-10-29	Images based on ContainerOS are supported.	No impact on workloads.

September 2021

Version number	Image address	Release date	Description	Impact
v1.20.5-ff6490f-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.20.5-ff6490f-aliyun	2021-09-24	The sharepath feature of NAS is supported. When the quota feature is enabled in NAS, automatic expansion and storage monitoring are supported. ARM64 and AMD64 architectures are supported.	No impact on workloads.

August 2021

Version number	Image address	Release date	Description	Impact
v1.18.8.51-c504ef45-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.18.8.51-c504ef45-aliyun	2021-08-19	The time parameter for the recycle bin is added to CNFS. The `API version` of CNFS is changed from `v1alpha1` to `v1beta1`. The issue that ossfs cannot synchronize data in real time is fixed. By default, the forcibly detach disk option is disabled.	No impact on workloads.

July 2021

Version number	Image address	Release date	Description	Impact
v1.18.8.47-06405694-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.18.8.47-06405694-aliyun	2021-07-06	The issue that NAS file systems cannot be expanded by using CNFS is fixed. OSS buckets can be mounted to nodes that are deployed by using the Alibaba Cloud Linux 3 image.	No impact on workloads.

June 2021

Version number	Image address	Release date	Description	Impact
v1.18.8.47-30ba5d25-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.18.8.47-30ba5d25-aliyun	2021-06-25	PVs can be created by using CNFS. The `snapshot.storage.k8s.io/v1` and `snapshot.storage.k8s.io/v1beta1` API versions are supported by VolumeSnapshots, VolumeSnapshotClasses, and VolumeSnapshotContents. Upgrade the API version to `snapshot.storage.k8s.io/v1` at the earliest opportunity. csi-snapshotter and snapshot-controller are updated to V4.0.0. The occasional issue that the token expires when you perfrom the ListS napshot operation is fixed.	No impact on workloads.

May 2021

Version number	Image address	Release date	Description	Impact
v1.18.8.47-906bd535-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.18.8.47-906bd535-aliyun	2021-05-20	Disk partitions can be mounted. Disk partitions can be expanded.	No impact on workloads.

April 2021

Version number	Image address	Release date	Description	Impact
v1.18.8.46-afb19e46-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.18.8.46-afb19e46-aliyun	2021-04-08	The NAS monitoring feature is supported. Disks are supported in the China (Qingdao) region.	No impact on workloads.

January 2021

Version number	Image address	Release date	Description	Impact
v1.18.8.45-1c5d2cd1-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.18.8.45-1c5d2cd1-aliyun	2021-01-13	By default, the volume monitoring feature is enabled. The VolumeSnapshot List feature is supported. Quota groups are supported by NAS volumes. Custom disk types are supported.	No impact on workloads.

November 2020

Version number	Image address	Release date	Description	Impact
v1.16.9.43-f36bb540-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.16.9.43-f36bb540-aliyun	2020-11-02	The deployment template is updated to put drivers in one container. The issue that volumes used to mount subdirectories in Extreme NAS file systems fail to be created is fixed. Kubernetes 1.18 is supported. Labels can be added to NAS volumes when you create NAS volumes.	No impact on workloads.

August 2020

Version number	Image address	Release date	Description	Impact
v1.14.8.41-9efe2ede-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.14.8.41-9efe2ede-aliyun	2020-08-05	The issue that snapshots cannot be created from disks is fixed. The issue that dynamic provisioning of NAS volumes fails due to residual data is fixed. The logic for inspecting BDF nodes when csi-plugin is started is fixed. UUIDs can no longer be used to obtain device paths.	No impact on workloads.

July 2020

Version number	Image address	Release date	Description	Impact
v1.14.8.40-146fd1d8-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.14.8.40-146fd1d8-aliyun	2020-07-13	Elastic Block Storage (EBS) snapshots are supported. You can use EBS snapshots to restore data to a beta version. Extreme NAS volumes can be created and deleted. The Config SysConfig parameter of EBS volumes is supported when you configure PVs. The issue that block volumes are loaded twice in BDF mode is fixed. EBS and NAS volumes are allowed to access APIs by using internal domain names. The CPFS driver is upgraded and the dependency on the kernel is removed.	No impact on workloads.

April 2020

Version number	Image address	Release date	Description	Impact
v1.14.8.38-fe611ad1-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.14.8.38-fe611ad1-aliyun	2020-04-20	EBS volumes can be unmounted before you delete the volumes. The disk creation policy is updated. Standard SSDs are created in preference to ultra disks. Ultra disks are created only when no standard SSD is available. UUID is supported as a high-priority search option to search for devices that use EBS volumes. The authentication management in ACK managed clusters is updated. Security Token Service (STS) is supported to connect to OSS buckets. DuplicateMountPoint errors in EBS are fixed. The BDF protocol is supported to bind EBS volumes after the volumes are connected.	No impact on workloads.

March 2020

Version number	Image address	Release date	Description	Impact
v1.14.8.36-93f2b131-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.14.8.36-93f2b131-aliyun	2020-03-14	ossfs is updated to support Key Management Service (KMS) and Bring Your Own Key (BYOK). Kubernetes 1.16 is supported. EBS volumes can be connected by using the controller server. EBS metric values can be obtained.	No impact on workloads.

February 2020

Version number	Image address	Release date	Description	Impact
v1.14.8.37-aae7f495-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.14.8.37-aae7f495-aliyun	2020-02-18	Kubernetes clusters that use CSI and do not have Internet access are supported. The issues related to mount path checks in EBS are fixed.	No impact on workloads.

December 2019

Version number	Image address	Release date	Description	Impact
v1.14.8.32-c77e277b-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.14.8.32-c77e277b-aliyun	2019-12-20	The EBS PV name can be used as the disk ID. This feature is also supported by FlexVolume. Mounting parameters can be configured for EBS volumes in the make file system (MKFS) stage. Mount options can be configured to have a higher priority than the volume attributes of NAS volumes. Mount options of OSS volumes can be validated in OSS connectors. Subpaths of OSS buckets can be mounted as volumes. Volume topology can be used to dynamically configure Logical Volume Manager (LVM).	No impact on workloads.
v1.14.5.60-5318afe-aliyun	registry.cn-hangzhou.aliyuncs.com/acs/csi-plugin:v1.14.5.60-5318afe-aliyun	2019-12-20	The mounted subpath and file system type can be configured for a NAS volume. Labels can be added to disk volumes when you configure disk volumes. Multiple regions can be configured in the StorageClass for disk volumes used in multi-region clusters. KMS-based authentication can be configured when you configure disk volumes. Disk volumes can be expanded. This feature is in internal preview. The topology awareness feature is supported when you configure disk volumes.	No impact on workloads.