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

Updates in minor engine versions

December 2020

Database engine Feature Description Release date References
PostgreSQL PostgreSQL 13 PostgreSQL 13 is supported for the RDS Basic Edition and the RDS High-availability Edition. 2020-12-29 Create an ApsaraDB RDS for PostgreSQL instance
MySQL ESSDs for RDS Basic Edition Enhanced SSDs (ESSDs) are supported for RDS instances that run the RDS Basic Edition. 2020-12-15 Create an ApsaraDB RDS for MySQL instance
MySQL Storage capacity expansion for ESSDs The storage capacity of an RDS instance that runs the RDS High-availability Edition with ESSDs can be expanded to up to 32,000 GB. 2020-12-15 Create an ApsaraDB RDS for MySQL instance

November 2020

Database engine Feature Description Release date References
SQL Server Restoration of data to an RDS instance that runs a later database engine version The data of an RDS instance can be restored to an existing RDS instance that runs a later database engine version than the original RDS instance. 2020-11-18 Restore the data of an ApsaraDB RDS for SQL Server instance
PostgreSQL AliPG The minor AliPG version 20201130 is released. 2020-11-16 Release notes of minor AliPG versions
PostgreSQL Spatio-temporal database engine Ganos is upgraded to V3.2. 2020-11-16 Release notes of Ganos

October 2020

Database engine Feature Description Release date References
SQL Server Cross-region backups Cross-region backups are supported. The backup files of an RDS instance can be replicated from the source region to a specified destination region. The backup files in the destination region can be used to manage and restore the data of the RDS instance. 2020-10-23 Enable cross-region backups for an ApsaraDB RDS for SQL Server instance

September 2020

Database engine Feature Description Release date References
PostgreSQL Spatio-temporal database engine Ganos V3.0 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 added to the mysqlbinlog plug-in. The concurrency control (CCL) mechanism is optimized to efficiently determine how transactions wait and concurrently run. Various log sequence numbers (LSNs) in the redo log are supported. 2020-09-09 Release notes of minor AliSQL versions
PostgreSQL AliPG The minor AliPG version 20200830 is released. In this version, Ganos is upgraded to V3.0. The sql_firewall and TimescaleDB plug-ins are also supported. 2020-09-09 Release notes of minor AliPG versions
All supported database engines Authorization of RAM users The permissions on RDS instances can be granted to Resource Access Management (RAM) users by using RAM. 2020-09-08 Authorize a RAM user to manage ApsaraDB for RDS instances
PostgreSQL HLL plug-in The HLL plug-in is supported. This plug-in is used to recommend content to individual users based on the preferences of the users. 2020-09-07 User preference recommendation system

August 2020

Database engine Feature Description Release date References
MySQL Dedicated proxy The dedicated proxy feature is supported. This feature supports various operations, such as the operations to create, modify, and delete proxy endpoints for an RDS instance. 2020-08-20 Introduction to database proxies
MySQL TDE Transparent Data Encryption (TDE) is supported for RDS 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 References
MySQL Single-digit second backups The single-digit second backup feature is supported for RDS instances that are equipped with ESSDs. Single-digit second backups can be enabled on the Backup Settings tab of the Backup and Restoration page in the ApsaraDB RDS console. If the single-digit second backup feature is enabled, ApsaraDB RDS can issue a backup task in single-digit seconds. The single-digit second backup feature is suitable for scenarios with urgent backup requirements. For example, if the data of an RDS instance must be backed up before an emergency release, a single-digit backup can be performed. 2020-07-28 Enable automatic backups for an ApsaraDB RDS for MySQL instance
SQL Server Account creation An account named Sa can be created. After the account is created on an RDS instance, the account can be used to connect an application to the RDS instance without service interruptions. 2020-07-22 Create an account for an RDS SQL Server instancy
MySQL AliSQL The minor AliPG version 20200630 is released. The performance agent feature and the faster DDL feature are supported. The maximum number of connections that are allowed is increased. The global parameter max_execution_time is supported, and the thread pool feature is optimized. A few bugs are fixed. For example, standard accounts are not authorized to execute the DROP DATABASE statement, and ApsaraDB RDS cannot correctly count waits if commands are read from a database client. 2020-07-20 Release notes of minor AliSQL versions
PostgreSQL New instance types A total of 17 new instance types are added to provide 2 to 104 cores. These new instance types are supported for RDS instances that run RDS High-availability Edition with standard SSDs or ESSDs. 2020-07-20 Primary ApsaraDB RDS instance types

June 2020

Database engine Feature Description Release date References
MySQL Online expansion of storage capacity The online expansion of storage capacity is supported for RDS instances that run MySQL 5.7 or MySQL 8.0 with standard SSDs or ESSDs. The expansion requires about 5 minutes or less. 2020-06-19 Change the specifications of an ApsaraDB RDS for MySQL instance
MySQL Username length The maximum length of a username for RDS instances that run MySQL 5.7 or MySQL 8.0 is increased to 32 characters. 2020-06-16 Create an account on an ApsaraDB RDS for MySQL instance
SQL Server Self-managed domains RDS instances can be connected to self-managed domains. 2020-06-12 Connect an ApsaraDB RDS for SQL Server instance to a self-managed domain
SQL Server Storage types The storage media of RDS instances can be upgraded from standard SSDs to ESSDs across zones. 2020-06-11 Change the specifications of an ApsaraDB RDS for SQL Server instance

May 2020

Database engine Feature Description Release date References
MySQL Update of the minor engine version An update policy can be selected for the minor engine version when you purchase an RDS instance. 2020-05-15 Create an ApsaraDB RDS for MySQL instance
MySQL Restoration of individual databases and tables The restoration of individual databases and tables is accelerated by four times. 2020-05-12 Restore individual databases and tables of an ApsaraDB RDS for MySQL instance
SQL Server Storage types The storage media of RDS instances can be upgraded from standard SSDs to ESSDs. 2020-05-07 Change the specifications of an ApsaraDB RDS for SQL Server instance

April 2020

Database engine Feature Description Release date References
MySQL Cross-region restoration The data of an RDS instance can be restored from a cross-region backup file to an existing RDS instance. 2020-04-24 Restore the data of an ApsaraDB RDS for MySQL instance across regions
MySQL Memory management Custom memory management is supported. 2020-04-22 Adjust the size of the InnoDB buffer pool for an ApsaraDB RDS for MySQL instance
All supported database engines Billing method The billing method of an RDS instance can be changed from subscription to pay-as-you-go. 2020-04-21 Switch an ApsaraDB RDS for MySQL instance from subscription to pay-as-you-go
MySQL Dedicated proxy Custom proxy endpoints are supported for the dedicated proxy of an RDS instance. 2020-04-15 Introduction to database proxies
PostgreSQL Plug-in The HLL, smlar, and tds_fdw plug-ins are supported. 2020-04-21 Plug-ins supported
MySQL Data restoration Auto-renewal can be enabled for new RDS instances to which data is restored. 2020-04-14 Restore the data of an ApsaraDB RDS for MySQL instance
SQL Server New database engine version and edition SQL Server 2008 R2 Cloud Disk Edition is released. 2020-04-10 Create an ApsaraDB RDS for SQL Server instance
MySQL SSL encryption SSL encryption is supported for RDS instances that run MySQL 5.7 or MySQL 8.0 on RDS Enterprise Edition. 2020-04-09 Configure SSL encryption on an ApsaraDB RDS for MySQL instance
PostgreSQL Foreign tables Foreign SQL Server tables and foreign Sybase tables are supported. 2020-04-03 N/A
MySQL Restoration of individual databases and tables The restoration of individual databases and tables is supported for RDS 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 References
MySQL Dedicated proxy The proxy of an RDS instance can be upgraded from shared proxy to dedicated proxy. 2020-03-20 Introduction to database proxies
MySQL Dedicated clusters Dedicated clusters are formerly known as host groups. These clusters are supported for RDS instances that run MySQL 5.6. 2020-03-18 Dedicated cluster
MySQL Dedicated proxy The dedicated proxy feature is supported for RDS instances that run MySQL 5.6 on RDS High-availability Edition with local SSDs. 2020-03-13 Introduction to database proxies
PostgreSQL Multi-zone deployment The multi-zone deployment method is supported for RDS instances that run RDS High-availability Edition with standard SSDs or ESSDs. 2020-03-08 Create an ApsaraDB RDS for PostgreSQL instance
MySQL Alert rules Alert rules are optimized. Alerts can be reported at 1-minute intervals, and more metrics are added. 2020-03-02 Configure an alert rule for an ApsaraDB RDS for MySQL instance

February 2020

Database engine Feature Description Release date References
MySQL Enterprise Edition The RDS Enterprise Edition is supported for RDS instances that run MySQL 5.7 or MySQL 8.0 in all Alibaba Cloud regions. 2020-02-28 Enterprise Edition
SQL Server New database engine version and edition The beta version of SQL Server 2019 SE is released. 2020-02-28 Create an ApsaraDB RDS for SQL Server instance
MySQL Zones of primary RDS instances The single-zone deployment method and the multi-zone deployment method are supported. Users can specify a zone for a primary RDS instance. 2020-02-27 Create an ApsaraDB RDS for MySQL instance
MySQL Long-term retention of backup files Backup files can be retained for a long period of time. 2020-02-26 Enable automatic backups for an ApsaraDB RDS for MySQL instance
SQL Server Disk encryption Standard SSDs and ESSDs can be encrypted by using Bring Your Own Keys (BYOKs) when the multi-zone deployment method is used. 2020-02-26 Configure disk encryption for an ApsaraDB RDS for SQL Server instance
SQL Server Database management The database management feature is supported for RDS instances that run SQL Server 2017 EE. 2020-02-25 Create a database on an ApsaraDB RDS for SQL Server instance
PostgreSQL Reserved connections A specific number of connections can be reserved for superuser accounts. This way, users can log on to an RDS instance and troubleshoot issues by using superuser accounts even if the number of established connections to the RDS instance reaches the upper limit. 2020-02-22 Release notes of minor AliPG versions
PostgreSQL PLV8 PLV8 V2.3.13 is provided for PostgreSQL 12 to compile stored procedures and functions. 2020-02-22 N/A
MySQL Storage types The following new performance levels (PLs) of ESSDs are added to the ApsaraDB RDS buy page: ESSD PL2 and ESSD PL3. 2020-02-21 Storage types
PostgreSQL SQL translation SQL statements can be translated from the Oracle syntax to the PostgreSQL syntax. 2020-02-14 SQL translation
PostgreSQL wal2json plug-in The wal2json plug-in is provided for PostgreSQL 12 to support logical subscriptions. 2020-02-14 Use the wal2json plug-in
MySQL Change of the RDS edition The RDS edition of an RDS instance that runs MySQL 5.6 can be changed from Enterprise to High-availability. 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 that are supported for each RDS instance is increased from 1 to 10. 2020-02-04 Configure an IP address whitelist for an ApsaraDB RDS for MySQL instance

January 2020

Database engine Feature Description Release date References
MySQL X-Engine The X-Engine storage engine that is developed by Alibaba Cloud is supported. X-Engine can compress a large amount of data with a significantly high compression ratio in online transaction processing (OLTP) scenarios. 2020-01-15 X-Engine overview
MySQL Monitoring of hosts in dedicated clusters Hosts in dedicated clusters can be monitored. The host monitoring information can be displayed, and alert rules can be configured. 2020-01-15 View host details
MySQL System parameter templates The following system parameter templates are provided: a high-availability template and a high-performance template. 2020-01-14 Use a parameter template to manage parameters
PostgreSQL pg_cron plug-in The pg_cron plug-in is provided for PostgreSQL 11 to configure scheduled tasks. 2020-01-14 Use the pg_cron plug-in to configure scheduled tasks
PostgreSQL PLV8 PLV8 V2.3.13 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 subscriptions. 2020-01-14 Use the wal2json plug-in
MySQL Performance insight The performance insight feature is supported for RDS instances that run RDS High-availability Edition or Enterprise Edition. 2020-01-09 Performance insight
MySQL TDE TDE with BYOKs is supported for RDS 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 PLs The following new PLs of ESSDs are provided on the ApsaraDB RDS buy page: ESSD PL2 and ESSD PL3. The new PLs of ESSDs are supported for RDS instances that run PostgreSQL 10 on RDS High-availability Edition. 2020-01-07 Create an ApsaraDB RDS for PostgreSQL instance