This topic describes the release notes for ApsaraDB for Redis and provides links to the relevant references.

Note For more information, visit the Product Updates page.

September 2021

Feature Description Release date Regions References
New feature You can enable the bandwidth auto scaling feature for instances. This feature can monitor the average bandwidth usage in real time and automatically adjust the bandwidth based on the specified policy, which helps you handle unexpected or scheduled traffic peaks. This way, you can focus on improving your business. 2021-09-07 All regions Enable bandwidth auto scaling

August 2021

Feature Description Release date Regions References
New feature Transparent data encryption (TDE) can be enabled for a performance-enhanced instance of ApsaraDB for Redis Enhanced Edition (Tair).To ensure data security and compliance, you can use this feature to perform real-time I/O encryption and decryption on files of the Redis Database (RDB) format. 2021-08-27 All regions Enable TDE
Enhanced feature for instances Password-free access can be enabled for a persistent memory-optimized instance of ApsaraDB for Redis Enhanced Edition (Tair) that is deployed in a virtual private cloud (VPC). This way, clients in the same VPC can connect to the instance without the need to use a password. After password-free access is enabled, you can still use a username and a password to connect to the instance. 2021-08-16 All regions Enable password-free access
Enhanced feature for scheduled events You can modify the switchover time of a scheduled event to the current time or a scheduled time. You can also specify the global scheduler to conveniently manage the switchover time of multiple scheduled events. 2021-08-05 All regions Query and manage pending events
Enhanced feature for instances ApsaraDB for Redis Enhanced Edition (Tair) allows you to manage Redis databases in the Data Management (DMS) console without the need to install a client. This way, you can manage Redis databases in an efficient manner.
Note This feature is unavailable for persistent memory-optimized instances in the cluster architecture.
2021-08-04 All regions Use DMS

July 2021

Feature Description Release date Regions References
New service Persistent memory-optimized instances of ApsaraDB for Redis Enhanced Edition (Tair) are released. These instances adopt Intel® Optane™ DC persistent memory (AEP), provide native command-level persistence capabilities, and are compatible with most Redis data structures and APIs. Compared with ApsaraDB for Redis Community Edition instances, persistent memory-optimized instances of ApsaraDB for Redis Enhanced Edition (Tair) can reduce costs by up to 30% and reach 90% of the read/write throughput capability. They are suitable for scenarios in which a large amount of hot and warm data needs to be stored and queried at low costs but with high performance. 2021-07-27

China (Hangzhou)

China (Shanghai)

China (Beijing)

China (Zhangjiakou)

Persistent memory-optimized instances
New service Storage-optimized instances of ApsaraDB for Redis Enhanced Edition (Tair) are released. These instances are developed based on enhanced solid-state disks (ESSDs), provide native command-level persistence capabilities, and are compatible with core Redis data structures and APIs. Compared with ApsaraDB for Redis Community Edition instances, storage-optimized instances of ApsaraDB for Redis Enhanced Edition (Tair) can reduce costs by up to 85%. They are suitable for scenarios in which an ultra-large amount of warm and cold data needs to be stored and queried at ultra-low costs and with moderate performance. 2021-07-27

China (Hangzhou)

China (Shanghai)

China (Beijing)

China (Zhangjiakou)

Storage-optimized instances
New feature The key analysis feature is released. This feature displays the big keys and hotkeys in ApsaraDB for Redis instances in real time. It also allows you to view the historical big keys and hotkeys within the last four days. This feature helps you obtain information such as the memory usage and access frequency of keys, based on which you can optimize your instances. 2021-07-16 All regions Query big keys and hotkeys by using the key analysis feature
New feature Alibaba Cloud has developed the TairZset data structure that allows you to sort score data of the DOUBLE type in different dimensions. This data structure improves the efficiency of data processing. This data structure is also easy to use on clients because you do not need to encode, decode, or encapsulate the data in the TairZset structure. 2021-07-14 All regions TairZSET commands
New capability of the data flashback feature The data flashback feature is supported by performance-enhanced instances of ApsaraDB for Redis Enhanced Edition (Tair). This feature allows you to restore data of a specified key to a specified point in time that is accurate to the second. More fine-grained data restoration prevents data loss that is caused by accidental operations to the maximum extent and protects your business data. 2021-07-07 All regions Use data flashback to restore data by point in time
New feature A new feature is provided for you to adjust the bandwidths of ApsaraDB for Redis instances. This feature allows you to handle expected and unexpected traffic spikes in an efficient manner and focus on business improvements. 2021-07-06 All regions Adjust the bandwidth of an ApsaraDB for Redis instance

June 2021

Feature Description Release date Regions References
New service Global Distributed Cache for Redis is released. Global Distributed Cache for Redis is an active geo-redundancy database system that is developed by Alibaba Cloud based on ApsaraDB for Redis. Global Distributed Cache for Redis provides a geo-replication feature. This feature provides the geo-replication capabilities that facilitate remote disaster recovery and active geo-redundancy, which reduce the latency for cross-region access. 2021-06-18 All regions Overview
New feature A new version of the audit log feature is released. The new version is integrated with Log Service and allows you to query, analyze, and export log data. The new version helps you gain insights into the security and performance of ApsaraDB for Redis instances. 2021-06-11 All regions Enable the new audit log feature

May 2021

Feature Description Release date Regions References
Enhanced SSL encryption The SSL encryption feature is enhanced. You can use Terraform to enable SSL encryption for ApsaraDB for Redis instances. 2021-05-17 All regions

Configure SSL encryption for an ApsaraDB for Redis instance

Introduction to Terraform settings

New feature The proxy query cache feature is released. After this feature is enabled for an ApsaraDB for Redis instance, the proxy servers of the instance can cache the requests and responses for hotkeys. If the same requests are received from a client, the proxy servers retrieve the responses to the requests from the cache and send the responses to the client. This feature helps prevent skewed requests that are caused by hotkeys. 2021-05-14 All regions Use proxy query cache to address issues caused by hotkeys
OpenAPI The following new parameters are supported by the CreateInstance operation of ApsaraDB for Redis:
  • Port: the service port that is used by an instance.
  • Tag.N.Key and Tag.N.Value: specify the key and value of a tag that is added to an instance.
  • DryRun: specifies whether to precheck the operation.
2021-05-12 All regions CreateInstance

April 2021

Feature Description Release date Regions References
Optimized performance monitoring The performance monitoring feature is optimized to adjust the layout of the metrics that are monitored and reduce the response time. This improves the user experience. For more information, see Announcement: performance monitoring upgraded. 2021-04-09 All regions

Query monitoring data

Monitoring metrics

March 2021

Feature Description Release date Regions References
New feature The diagnostic report feature is supported. This feature helps you evaluate the health status of an ApsaraDB for Redis instance based on the performance, the distribution of skewed requests, and the slow query logs. The health status provides a reference for you to identify exceptions in the instance. 2021-03-10 All regions

Create a diagnostic report

Analyze a diagnostic report

February 2021

Feature Description Release date Regions References
New feature The VPC or vSwitch of an ApsaraDB for Redis instance can be changed. You can migrate an ApsaraDB for Redis instance to the VPC of an Elastic Compute Service (ECS) instance. This way, the ApsaraDB for Redis instance and ECS instance can communicate with each other with the minimum latency. 2021-02-26 All regions Change the VPC or vSwitch of an ApsaraDB for Redis instance

October 2020

Feature Description Release date Regions References
New features The pending event feature and the history event feature are released. You can query details about the O&M events of ApsaraDB for Redis instances and change the scheduled switchover time of each event. The details about an event include the type, considerations, and related instances of the event. 2020-10-23 All regions

Query history events

Query and manage pending events

September 2020

Feature Description Release date Regions References
Task progress bar The task progress bar feature is released. When you perform time-consuming tasks, you can view the progress information about the tasks in the ApsaraDB for Redis console. To view the progress information about a task, you must log on to the ApsaraDB for Redis console and click the Task progress icon in the upper-right corner of the page. The progress information includes information such as the percentage of the operations that are complete in the task and the estimated time that is required to complete the remaining operations in the task. 2020-09-24 All regions N/A
Optimized parameter settings The #no_loose_disabled-commands parameter supports more Redis commands. This parameter is used to specify disabled commands. 2020-09-23 All regions

August 2020

Feature Description Release date Regions References
Optimized slow query logs Client IP addresses are recorded in the slow query logs of cluster instances of ApsaraDB for Redis Enhanced Edition (Tair). You can use the recorded client IP addresses to troubleshoot issues. 2020-08-28 All regions Query slow logs
Optimized metrics New metrics are added to improve the stability and response speed of the performance monitoring feature. These metrics include the total number of keys, CPU utilization, used memory capacity, and memory usage. The original metrics that are used to monitor the response time of commands are phased out from all monitoring groups. 2020-08-11 All regions

July 2020

Feature Description Release date Regions References
Data flashback The data flashback feature is supported by performance-enhanced instances of ApsaraDB for Redis Enhanced Edition (Tair). You can use this feature to restore the data of an ApsaraDB for Redis instance to a specific point in time that is within the last seven days. This feature helps you simplify O&M operations, protect your data in real time, and prevent data loss that is caused by accidental operations. 2020-07-29 All regions Use data flashback to restore data by point in time
Optimized support for security groups of ECS instances The number of host IP addresses that are allowed in each ECS security group is no longer limited. 2020-07-29 All regions Step 2: Configure whitelists
Transport Layer Security (TLS) version selection Earlier TLS versions can be selected based on security compliance and your business requirements. The default TLS version is TLS 1.0. 2020-07-28 All regions Configure SSL encryption for an ApsaraDB for Redis instance

June 2020

Feature Description Release date Regions References
Optimized scaling for cluster instances The scaling feature is optimized for cluster instances. The optimized feature allows you to change instance specifications with minimum downtime if the number of shards remains unchanged. 2020-06-30 All regions N/A
Optimized instance filtering ApsaraDB for Redis instances can be filtered by zone on the Instances page in the ApsaraDB for Redis console. 2020-06-30 All regions N/A
Optimized endpoint changes The classic network endpoint of an ApsaraDB for Redis instance can be changed. 2020-06-30 All regions Change the endpoint or port number of an ApsaraDB for Redis instance

April 2020

Feature Description Release date Regions References
Optimized instance restart The minor version of an ApsaraDB for Redis instance can be updated when the instance restarts. 2020-04-24 All regions Restart an instance

March 2020

Feature Description Release date Regions References
Release of classic network endpoints The classic network endpoint of an ApsaraDB for Redis instance that runs in a VPC can be manually released. 2020-03-20 All regions Release a classic network endpoint
Cloning of cluster instances An ApsaraDB for Redis cluster instance can be cloned from backups. 2020-03-20 All regions Backup and restoration solutions

February 2020

Feature Description Release date Regions References
New version of the audit log feature A new version of the audit log feature is released. 2020-02-29 All regions Enable the new audit log feature
Increased number of security groups that can be added to whitelists Up to 10 security groups can be added to whitelists for an ApsaraDB for Redis instance. 2020-02-28 All regions Add security groups
Zhangjiakou Zone C ApsaraDB for Redis is available in Zhangjiakou Zone C. 2020-02-13 All regions N/A
Zhangjiakou Zone B ApsaraDB for Redis is available in Zhangjiakou Zone B. 2020-02-07 All regions N/A

January 2020

Feature Description Release date Regions References
Multi-threading proxy servers The multi-threading mode is supported by proxy servers of ApsaraDB for Redis. The multi-threading mode improves processing performance, reduces the number of proxy servers that are required in a large cluster, and improves service stability. 2020-01-10 All regions N/A

December 2019

Feature Description Release date Regions References
Hangzhou Zone I ApsaraDB for Redis is available in Hangzhou Zone I. 2019-12-31 China (Hangzhou) N/A
Switch for append-only file (AOF) persistence AOF persistence can be enabled or disabled for an ApsaraDB for Redis instance. 2019-12-23 All regions Disable AOF persistence
China East 2 Finance Zone G ApsaraDB for Redis is available in China East 2 Finance Zone G. 2019-12-20 China East 2 Finance Introduction to Finance Cloud
Beijing Zone H ApsaraDB for Redis is available in Beijing Zone H. 2019-12-20 China (Beijing) N/A
Qingdao Zone B and Qingdao Zone C ApsaraDB for Redis is available in Qingdao Zone B and Qingdao Zone C. 2019-12-17 China (Qingdao) N/A
ApsaraDB for Redis Enhanced Edition (Tair) ApsaraDB for Redis Enhanced Edition (Tair) is released. Compared with ApsaraDB for Redis Community Edition, ApsaraDB for Redis Enhanced Edition (Tair) provides higher performance, more data structures, and more storage methods. 2019-12-09 All regions Overview

November 2019

Feature Description Release date Regions References
Eviction of expired keys The expired keys of an ApsaraDB for Redis instance can be evicted with a few clicks. 2019-11-30 All regions Delete data
Resource groups ApsaraDB for Redis instances can be created in resource groups, and the created instances can be managed based on resource groups. 2019-11-30 All regions Create a resource group

June 2019

Feature Description Release date Regions References
Port number changes The port number that is associated with an endpoint of an ApsaraDB for Redis instance can be changed. 2019-06-30 All regions Change the endpoint or port number of an ApsaraDB for Redis instance
Public endpoints A public endpoint can be requested for an ApsaraDB for Redis instance. You can use the public endpoint to access the instance over the Internet. 2019-06-30 All regions Use a public endpoint to connect to an ApsaraDB for Redis instance

May 2019

Feature Description Release date Regions References
Tag management Tags can be added to ApsaraDB for Redis instances, and instances can be classified based on tags. 2019-05-14 All regions Create a tag

April 2019

Feature Description Release date Regions References
Private IP addresses of ECS instances added to a whitelist Private IP addresses of existing ECS instances can be added to a whitelist on the whitelist configuration page. 2019-04-27 All regions Step 2: Configure whitelists

February 2019

Feature Description Release date Regions References
Cross-zone migration An ApsaraDB for Redis instance can be migrated across zones in a region. 2019-02-28 All regions Migrate an instance across zones

January 2019

Feature Description Release date Regions References
Jakarta Zone A and Jakarta Zone B ApsaraDB for Redis is available in Jakarta Zone A and Jakarta Zone B. 2019-01-17 Indonesia (Jakarta) N/A
Hangzhou Zone H and Hangzhou Zone I ApsaraDB for Redis is available in Hangzhou Zone H and Hangzhou Zone I. 2019-01-10 China (Hangzhou) N/A