This topic describes the release notes of ApsaraDB for RDS, including features and document updates.

September 2020

Database engine Feature Description Release date Documentation
SQL Server Cloud streaming migration The migration of data from an on-premises or ECS-hosted SQL Server database to an ApsaraDB RDS for SQL Server instance is supported. This is implemented by using Alibaba Cloud Data Backup (DBS). 2020-09-10 SQL Server流式上云
PostgreSQL Spatio-temporal database engine Version 3.0 of Ganos is released. 2020-09-09 Overview
MySQL AliSQL The minor AliSQL version 20200831 is released. In this version, start global transaction identifiers (GTIDs) and end GTIDs are introduced to the mysqlbinlog plug-in. The concurrency control (CCL) mechanism is optimized to better determine how transactions can wait and concurrently run. In addition, various log sequence numbers (LSNs) in the redo log file are supported. 2020-09-09 Release notes of minor AliSQL versions
PostgreSQL AliPG The minor AliPG version 20200830 is released. In this version, the Ganos plug-in is upgraded to version 3.0. In addition, the sql_firewall and TimescaleD plug-ins are supported. 2020-09-09 Release notes of minor AliPG versions
All Alibaba Cloud Resource Access Management (RAM) user authorization The authorization of permissions on instances to RAM users is supported. This is implemented by using RAM. 2020-09-08 Authorize a RAM user to manage ApsaraDB for RDS instances
PostgreSQL HyperLogLog (HLL) plug-in The recommendation of content to a user based on the preferences of the user is supported. This is implemented by using the HLL plug-in. 2020-09-07 User preference recommendation system

August 2020

Database engine Feature Description Release date Documentation
MySQL Dedicated proxy The dedicated proxy feature is supported. You can create, modify, and delete the proxy endpoints of instances. 2020-08-20 Dedicated proxy
MySQL Transparent data encryption (TDE) TDE is supported for instances that run MySQL 8.0 on RDS High-availability Edition with local SSDs. 2020-08-12 Configure TDE for an ApsaraDB RDS for MySQL instance

July 2020

Database engine Feature Description Release date Documentation
MySQL Single-digit second backup The single-digit second backup feature is supported for instances that use enhanced SSDs. You can enable this feature on the Backup Settings tab of the Backup and Restoration page in the ApsaraDB for RDS console. If this feature is enabled, a backup task can be complete within seconds. This feature is suitable for urgent backup requirements. For example, you can enable this feature if you must back up your instance before an emergency release. 2020-07-28 Back up an ApsaraDB RDS for MySQL instance
SQL Server Account creation The creation of an account named Sa is supported. You can connect applications to instances by using this account. 2020-07-22 Create an account for an RDS SQL Server instancy
PostgreSQL New instance type A total of 17 more instance types that provide 2 to 104 CPU cores are introduced to instances that run the RDS High-availability Edition with standard or enhanced SSDs. 2020-07-20 Primary instance types

June 2020

Database engine Feature Description Release date Documentation
MySQL Online expansion of storage capacity Online expansion of storage capacity is supported for instances that run MySQL 5.7 or 8.0 with standard or enhanced SSDs. The expansion requires about 5 minutes. 2020-06-19 Change the specifications of an ApsaraDB RDS for MySQL instance
MySQL Maximum username length The maximum username length is increased to 32 characters. This applies to instances that run MySQL 5.7 or 8.0. 2020-06-16 Create an account on an ApsaraDB RDS for MySQL instance
SQL Server User-created domain Instances can be connected to user-created domains. 2020-06-12 Connect an ApsaraDB RDS for SQL Server instance to a user-created domain
SQL Server Storage type The storage types of instances can be changed from standard SSDs to enhanced SSDs across zones. 2020-06-11 A new version is available.

May 2020

Database engine Feature Description Release date Documentation
MySQL Minor engine version update The selection of a policy that is used to update the minor engine version is supported. This applies when you create an instance. 2020-05-15 Create an ApsaraDB RDS for MySQL instance
MySQL Database- and table-level restoration The efficiency of database- and table-level restoration is increased by four times. 2020-05-12 Restore individual databases and tables of an ApsaraDB RDS for MySQL instance
SQL Server Storage type The storage types of instances can be changed from standard SSDs to enhanced SSDs. 2020-05-07 A new version is available.

April 2020

Database engine Feature Description Release date Documentation
MySQL Data restoration across regions The restoration from a cross-region backup file to an existing instance is supported. 2020-04-24 Restore an ApsaraDB RDS for MySQL instance across regions
MySQL Memory management Custom memory management is supported. 2020-04-22 Memory management of an ApsaraDB RDS for MySQL instance
All Billing method The billing method can be changed from subscription to pay-as-you-go. 2020-04-21 Switch the billing method from subscription to pay-as-you-go
MySQL Dedicated proxy Custom proxy endpoints are supported in the dedicated proxy feature. 2020-04-15 Dedicated proxy
PostgreSQL Plug-in The HLL, smlar, and tds_fdw plug-ins are supported. 2020-04-21 Plug-ins supported
MySQL Data restoration Auto-renewal is supported for new instances to which you restore data. 2020-04-14 Restore the data of an ApsaraDB RDS for MySQL instance
SQL Server New version SQL Server 2008 R2 is supported for instances that use standard or enhanced SSDs. 2020-04-10 Create an ApsaraDB RDS for SQL Server instance
MySQL Secure Sockets Layer (SSL) encryption SSL encryption is supported for instances that run MySQL 5.7 or 8.0 on RDS Enterprise Edition. 2020-04-09 Configure SSL encryption on an ApsaraDB RDS for MySQL instance
PostgreSQL Foreign table Both foreign SQL Server and Sybase tables are supported. 2020-04-03 N/A
MySQL Database- and table-level restoration The restoration of databases and tables is supported for instances that run MySQL 8.0. 2020-04-01 Restore individual databases and tables of an ApsaraDB RDS for MySQL instance

March 2020

Database engine Feature Description Release date Documentation
MySQL Dedicated proxy The upgrade from shared proxy to dedicated proxy is supported. 2020-03-20 Dedicated proxy
MySQL Dedicated cluster Dedicated clusters (formerly known as host groups) are supported for instances that run MySQL 5.6. 2020-03-18 ApsaraDB Dedicated Cluster
MySQL Dedicated proxy The dedicated proxy feature is supported for instances that run MySQL 5.6 on RDS High-availability Edition with local SSDs. 2020-03-13 Dedicated proxy
PostgreSQL Multi-zone deployment Multi-zone deployment is supported for instances that run RDS High-availability Edition with standard or enhanced SSDs. 2020-03-08 Create an ApsaraDB RDS for PostgreSQL instance
MySQL Alert rule Alert rules are optimized to support one-minute alert intervals and more metrics. 2020-03-02 Configure an alert rule for an ApsaraDB RDS for MySQL instance

February 2020

Database engine Feature Description Release date Documentation
MySQL Enterprise Edition The RDS Enterprise Edition is supported for instances that run MySQL 5.7 or 8.0 in all regions. 2020-02-28 ApsaraDB for RDS Enterprise Edition
MySQL Instance analysis Instance analysis is supported for instances that run the RDS High-availability or Enterprise Edition. 2020-02-28 Overview of ApsaraDB RDS for MySQL analytic instances
SQL Server New version SQL Server 2019 SE Beta is supported. 2020-02-28 Create an ApsaraDB RDS for SQL Server instance
MySQL Zone of the primary instance Single-zone deployment and multi-zone deployment are supported. You can specify a zone for the primary instance, and the system then assigns a zone for the secondary instance. 2020-02-27 Create an ApsaraDB RDS for MySQL instance
MySQL Long term backup The long term backup feature is supported. This feature allows you to retain backup files for a long term. 2020-02-26 Back up an ApsaraDB RDS for MySQL instance
SQL Server Disk encryption The encryption of standard and enhanced SSDs based on Bring Your Own Keys (BYOKs) is supported when multi-zone deployment is adopted. 2020-02-26 Configure disk encryption for an ApsaraDB RDS for SQL Server instance
SQL Server Database management Database management is supported for instances that run SQL Server 2017 EE. 2020-02-25 Create a database on an ApsaraDB RDS for SQL Server instance
PostgreSQL Reserved connection The reservation for a specific number of connections is supported for superuser accounts. You can log on to an instance and troubleshoot issues by using these accounts even if the number of established connections reaches the upper limit. 2020-02-22 Release notes of minor AliPG versions
PostgreSQL PLV8 PLV8 2.3.13 is provided for PostgreSQL 12 to compile stored procedures and functions. 2020-02-22 N/A
MySQL Storage type Two new storage types are provided on the ApsaraDB for RDS buy page: ESSD PL2 and ESSD PL3. 2020-02-21 Storage types
PostgreSQL SQL translation The translation of SQL statements from the Oracle syntax to the PostgreSQL syntax is supported. 2020-02-14 SQL translation
PostgreSQL wal2json plug-in The wal2json plug-in is provided for PostgreSQL 12 to support logical subscription. 2020-02-14 Use the wal2json plug-in
MySQL Edition change The RDS edition can be changed from Enterprise to High-availability. This applies to instances that run MySQL 5.6. 2020-02-13 Change the specifications of an ApsaraDB RDS for MySQL instance
MySQL Number of ECS security groups The number of ECS security groups allowed per instance is increased from 1 to 10. 2020-02-04 Control access to an ApsaraDB RDS for MySQL instance

January 2020

Database engine Feature Description Release date Documentation
MySQL X-Engine The X-Engine storage engine that is developed by Alibaba Cloud is provided. X-Engine can compress a large volume of data at a significantly high compression ratio in online transaction processing (OLTP) scenarios. 2020-01-15 X-Engine overview
MySQL Host monitoring The monitoring of hosts in dedicated clusters is supported. You can view host monitoring information and configure alert rules. 2020-01-15 View a host in an RDS ApsaraDB for MyBase
MySQL System parameter template Two system parameter templates are provided: one for high availability and the other for high performance. 2020-01-14 Use a parameter template to manage parameters
PostgreSQL pg_cron plug-in The pg_cron plug-in is released for PostgreSQL 11 to configure scheduled tasks. 2020-01-14 Use the pg_cron plug-in
PostgreSQL PLV8 PLV8 2.3.13 is provided for PostgreSQL 11 to compile stored procedures and functions. 2020-01-14 N/A
PostgreSQL log_fdw plug-in The log_fdw plug-in is provided for PostgreSQL 11 to query logs in real time. 2020-01-14 Use the log_fdw plug-in
PostgreSQL wal2json plug-in The wal2json plug-in is provided for PostgreSQL 12 to support logical subscription. 2020-01-14 Use the wal2json plug-in
MySQL Performance insight The performance insight feature is supported for two RDS editions: High-availability and Enterprise. 2020-01-09 Performance insight
MySQL TDE TDE with BYOKs is supported for instances that run MySQL 5.7 on RDS High-availability Edition with local SSDs. 2020-01-07 Configure TDE for an ApsaraDB RDS for MySQL instance
PostgreSQL Enhanced SSD PL Two new protection levels (PLs) of enhanced SSDs are provided on the ApsaraDB for RDS buy page: ESSD PL2 and ESSD PL3. This applies to instances that run PostgreSQL 10 on RDS High-availability Edition. 2020-01-07 Create an ApsaraDB RDS for PostgreSQL instance

December 2019

Database engine Feature Description Release date Documentation
PostgreSQL pg_roaringbitmap plug-in The pg_roaringbitmap plug-in is provided for PostgreSQL 12 to spot user profiles in real time. 2019-12-31 Use the roaringbitmap plug-in
PostgreSQL Monitoring and alerting Monitoring and alerting are supported for instances that use standard or enhanced SSDs. 2019-12-31 Set the monitoring frequency of an ApsaraDB RDS for PostgreSQL instance
MySQL Dedicated proxy The dedicated proxy feature is supported for instances that run MySQL 5.7 or 8.0 on RDS Enterprise Edition. 2019-12-25 Dedicated proxy
MySQL Enterprise Edition The RDS Enterprise Edition is supported for instances that run MySQL 8.0. 2019-12-24 Create an ApsaraDB RDS for MySQL instance
MySQL Storage for dedicated clusters X-Dragon servers are supported for dedicated clusters. You can create instances that use enhanced SSDs on these servers. 2019-12-19 Create hosts in an ApsaraDB for MyBase dedicated cluster
PostgreSQL New version The RDS Basic Edition is supported for instances that run PostgreSQL 12. 2019-12-17 Create an ApsaraDB RDS for PostgreSQL instance
PostgreSQL SSL SSL encryption can be enabled and disabled in the ApsaraDB for RDS console. This applies to instances that use standard or enhanced SSDs. 2019-12-17 Configure data encryption for an RDS PostgreSQL instance
PostgreSQL VSwitch change Changes to VSwitches are supported. This applies to instances that use standard or enhanced SSDs. 2019-12-17 Switch to a new VSwitch for an RDS PostgreSQL instance
PostgreSQL Service account authorization The authorization of a temporary service account is supported in the ApsaraDB for RDS console. This service account is used by Alibaba Cloud technical support to troubleshoot instance issues. 2019-12-17 Authorize the service account of an RDS PostgreSQL instance
MySQL Dedicated proxy The dedicated proxy feature is supported for instances that run MySQL 5.7 or 8.0 on RDS High-availability Edition with standard or enhanced SSDs. 2019-12-17 Dedicated proxy

November 2019

Database engine Feature Description Release date Documentation
MySQL New instance type General-purpose instance types are supported for instances that run MySQL 5.7 on RDS Enterprise Edition. 2019-11-24 Primary instance types
MySQL SQL Explorer The SQL Explorer feature is supported for instances that run MySQL 5.7 on RDS Enterprise Edition. 2019-11-21 SQL Explorer
MySQL Read-only instance Read-only instances are supported for instances that run MySQL 5.7 on RDS Enterprise Edition. 2019-11-19 Create a read-only ApsaraDB RDS for MySQL instance
MySQL New instance type New instance types that provide 12, 24, 52, and 104 CPU cores are introduced to instances that run RDS High-availability Edition with standard or enhanced SSDs. 2019-11-15 Primary instance types
PostgreSQL Data reads and writes on foreign MySQL tables The mysql_fdw plug-in is provided for instances that run PostgreSQL 10 with standard or enhanced SSDs. This allows you to directly read and write data to ApsaraDB RDS for MySQL instances or user-created MySQL databases. 2019-11-13 Use mysql_fdw to read and write data to a MySQL database
MySQL New instance type A new instance type that provides one CPU core and 1 GB of memory is introduced to instances that run MySQL 8.0 on RDS Basic Edition. 2019-11-12 Primary instance types

October 2019

Database engine Feature Description Release date Documentation
MySQL Dedicated proxy The dedicated proxy feature is provided for instances that run MySQL 5.7 on RDS High-availability Edition with local SSDs. This feature provides the read/write splitting and short-lived connection optimization functions. 2019-10-28 Dedicated proxy
PostgreSQL Removal of binding relationships between storage capacity sizes and instance types The binding relationships between storage capacity sizes and instance types are removed. You can purchase any amount of storage capacity for the selected instance type. This reduces the costs of storage- and compute-intensive workloads. 2019-10-24 Primary instance types
PostgreSQL Data reads and writes on foreign PostgreSQL tables The dblink and postgres_fdw plug-ins are supported for instances that run PostgreSQL 11 with standard or enhanced SSDs. These plug-ins allow you to manage tables across instances. 2019-10-24 Use the dblink and postgre_fdw plug-ins for cross-database operations
PostgreSQL Up to 32-TB storage capacity The maximum storage capacity is increased. The limit is 6 TB for instances that run the RDS Basic Edition and for those that run the RDS High-availability Edition with local or standard SSDs. The limit is 32 TB for instances that run the RDS High-availability Edition with enhanced SSDs. 2019-10-24 Primary instance types
PostgreSQL PostgreSQL 11 PostgreSQL 11 is supported. 2019-10-24 Create an ApsaraDB RDS for PostgreSQL instance
SQL Server SQL Server 2017 SE SQL Server 2017 SE is supported. ApsaraDB for RDS has now covered all of the SQL Server versions within the range of 2012 to 2017 in various editions. 2019-10-18 Functions supported by different versions and editions of SQL Server
SQL Server ESSD PL2 and ESSD PL3 Enhanced SSDs of PL2 and PL3 are released in all regions in mainland China. An enhanced SSD of PL 3 delivers 20 times more input/output operations per second (IOPS) and 11 times more throughput than an enhanced SSD of PL1. You can use enhanced SSDs of PL2 or PL3 to deal with large amounts of concurrent I/O requests at stable read/write latencies. 2019-10-17 Storage types
MySQL Dedicated proxy The dedicated proxy feature is provided for instances that run MySQL 8.0 on RDS High-availability Edition with local SSDs. This feature provides the read/write splitting and short-lived connection optimization functions. 2019-10-15 Dedicated proxy
MySQL Price adjustment The prices of instances that use standard or enhanced SSDs are reduced by up to 50%. 2019-10-15 Pricing, billable items, and billing methods
SQL Server Multi-zone deployment Multi-zone deployment is supported for instances that span zones A and C in the China (Zhangjiakou-Beijing Winter Olympics) region. 2019-10-10 Create an ApsaraDB RDS for SQL Server instance

September 2019

Database engine Feature Description Release date Documentation
MySQL Storage capacity range adjustment The storage capacity range is adjusted for instances that use local SSDs. The adjustment applies to dedicated instances. 2019-09-18 Primary instance types
MySQL Upgrade from Basic Edition to High-availability Edition The upgrade from the RDS Basic Edition to the RDS High-availability Edition is supported. 2019-09-15 Change the specifications of an ApsaraDB RDS for MySQL instance
MySQL New instance type A new instance type that provides 90 CPU cores and 720 GB of memory is introduced. The new instance type applies to dedicated host instances. 2019-09-15 Primary instance types
All New buy page A new ApsaraDB for RDS buy page is released. 2019-09-12 Create an ApsaraDB RDS for MySQL instance
MySQL VPC change Changes to virtual private clouds (VPCs) are supported. 2019-09-12 Switch to a new VPC and VSwitch for an RDS MySQL instance
PostgreSQL Data encryption SSL encryption and disk encryption are supported. These encryption functions can work together to better protect your data. 2019-09-04 Configure data encryption for an RDS PostgreSQL instance

August 2019

Database engine Feature Description Release date Documentation
MySQL Parameter template Parameter templates are provided. You can manage a number of instance parameters at a time by using a parameter template. 2019-08-27 Use a parameter template to manage parameters
MySQL Disabling SSL encryption The disabling of SSL encryption is supported. 2019-08-23 Configure SSL encryption on an ApsaraDB RDS for MySQL instance
MySQL Temporary disabling of automatic failover The temporary disabling of automatic failover for up to one week is supported. 2019-08-22 Perform a manual or automatic switchover of services between a primary ApsaraDB RDS for MySQL instance and its secondary instance
MySQL Database- and table-level backup and restoration Backup and restoration at the database and table levels are supported for instances that run MySQL 5.6 or 5.7. 2019-08-20 Restore individual databases and tables of an ApsaraDB RDS for MySQL instance
MySQL Instance rebuilding from the recycle bin The rebuilding of subscription instances from the recycle bin is supported. This applies when the instances are locked due to overdue payments. 2019-08-16 Manage ApsaraDB RDS for MySQL instances in the recycle bin
MySQL Cross-region backup The cross-region backup feature is supported. You can back up an instance and store the backup data to a region where that instance does not reside. 2019-08-13 Back up an ApsaraDB RDS for MySQL instance across regions
MySQL SQL Explorer The time range to query logs in the SQL Explorer feature is refined to 24 hours or less. 2019-08-08 SQL Explorer
MySQL SQL Explorer The SQL Explorer feature is supported for instances that run MySQL 5.7 on RDS High-availability Edition with standard or enhanced SSDs. This feature logs all of the SQL statements that are executed. 2019-08-01 SQL Explorer

July 2019

Database engine Feature Description Release date Documentation
MySQL TDE TDE with BYOKs is supported for instances that run MySQL 5.6. 2019-07-30 Configure TDE for an ApsaraDB RDS for MySQL instance
MySQL VPC endpoint change Changes to endpoints are supported for instances that reside in VPCs. 2019-07-29 Configure endpoints
MySQL Up to 16-TB storage capacity The maximum storage capacity is increased. The limit is up to 16 TB for instances that run MySQL 5.7 or 8.0 on RDS High-availability Edition with enhanced SSDs. 2019-07-29 Primary instance types
SQL Server SQL Server 2016 EE Basic SQL Server 2016 EE Basic is supported for dedicated instances. 2019-07-25 Create an ApsaraDB RDS for SQL Server instance
All Five-year subscription Five-year subscription is supported for instances that run MySQL, SQL Server, PPAS, PostgreSQL, or MariaDB. 2019-07-20 Create an ApsaraDB RDS for MySQL instance
SQL Server Upgrade from Basic Edition to High-availability Edition The upgrade from the RDS Basic Edition to the RDS High-availability Edition is supported. You can perform the upgrade on the Basic Information page of the ApsaraDB for RDS console. 2019-07-17 Upgrade from Basic Edition to High-availability Edition